The document reviews the parametric study of heat pipe performance. It discusses how heat pipes transfer heat using both thermal conductivity and phase change. The key factors that affect heat pipe performance are identified as working fluid, wick structure, tilt angle, heat input, and applications. Limitations to heat transport in heat pipes are the capillary, viscous, sonic, entrainment, and boiling limitations. The effect of the wick structure on heat pipe performance is also examined.
This document provides an overview of heat pipes, including their history, components, working principles, applications, and limitations. Some key points:
- Heat pipes transfer heat through a process of evaporation and condensation of a working fluid inside a sealed container.
- Components include a container, wicking structure, and working fluid like water or liquid metals. Heat is absorbed by evaporating the fluid and released by condensing it.
- They have a wide range of applications in electronics cooling, aerospace, and heat exchangers due to their high heat transfer efficiency.
- Limitations include dry-out if capillary pressure cannot return enough liquid to the evaporator section or if vapor velocities become too
This document provides an overview of conventional and modern heat pipes. It discusses the basic working principles of heat pipes, including how heat is transferred from the evaporator to the condenser via evaporation and condensation of a working fluid. It also describes the key components of heat pipes - the container, working fluid, and wick structure. Finally, it outlines several types of heat pipes such as thermosyphons, loop heat pipes, micro heat pipes, and variable conductance heat pipes.
Heat pipe is Heat transfer devices. They are Hollow cylindrical pipes, filled with a small/little amount of working fluid that evaporates to produce heat. This heat then rejected from another end for its application on various industrial processes.
This document provides an overview of heat pipes and their applications in electronics cooling. It discusses the basic components and operation of heat pipes including the evaporator, condenser, wick and working fluid. The key advantages of heat pipes are their high thermal conductivity and ability to transport heat efficiently. Limitations include the capillary and boiling limits. Different types of heat pipes are described along with considerations for choosing materials and designing heat pipes for specific applications like electronics cooling.
A heat pipe is a device that efficiently transports thermal energy from one point to another using the latent heat of vaporized working fluid. It has a higher effective thermal conductivity than solid conductors. A heat pipe consists of a container, working fluid, and wick structure. Heat is absorbed in the evaporator section, vaporizing the fluid. The vapor moves through the container and condenses in the condenser section, releasing heat. Capillary action in the wick pumps the condensed fluid back to the evaporator. Heat pipes are used to cool electronics and aerospace components due to their high conductivity and ability to dissipate large heat fluxes over long distances.
This document discusses heat pipes, including their working principle and key components. A heat pipe transfers heat from one location to another using an evaporation-condensation cycle. It consists of a container, working fluid, and wick/capillary structure. Heat is absorbed at the evaporator section where the fluid evaporates, then the vapor travels along the container to the condenser section where it condenses, releasing heat. The condensed fluid returns to the evaporator via capillary action in the wick. Heat pipes provide fast, efficient heat transfer with minimal temperature difference and no external power. They have various applications including electronics cooling, aerospace, and heat exchangers.
This document provides an overview of heat pipes, including:
- Heat pipes transfer thermal energy through the evaporation and condensation of a working fluid inside a sealed container.
- Key components are the working fluid, wick structure to return liquid, and sealed container.
- Different types of heat pipes include vapor chambers, variable conductance heat pipes, diode heat pipes, and thermosyphons.
- Heat pipes have applications in electronics cooling and other areas requiring efficient heat transfer over distance.
The document summarizes a seminar presentation on heat pipes. It introduces heat pipes and their working principle of transferring thermal energy through latent heat of vaporized working fluid within the heat pipe. It describes the components of heat pipes, requirements for working fluids, types of heat pipes, their applications, and advantages. Heat pipes provide efficient passive heat transfer and are used in electronics cooling, spacecraft, and other applications.
This document provides an overview of heat pipes, including their history, components, working principles, applications, and limitations. Some key points:
- Heat pipes transfer heat through a process of evaporation and condensation of a working fluid inside a sealed container.
- Components include a container, wicking structure, and working fluid like water or liquid metals. Heat is absorbed by evaporating the fluid and released by condensing it.
- They have a wide range of applications in electronics cooling, aerospace, and heat exchangers due to their high heat transfer efficiency.
- Limitations include dry-out if capillary pressure cannot return enough liquid to the evaporator section or if vapor velocities become too
This document provides an overview of conventional and modern heat pipes. It discusses the basic working principles of heat pipes, including how heat is transferred from the evaporator to the condenser via evaporation and condensation of a working fluid. It also describes the key components of heat pipes - the container, working fluid, and wick structure. Finally, it outlines several types of heat pipes such as thermosyphons, loop heat pipes, micro heat pipes, and variable conductance heat pipes.
Heat pipe is Heat transfer devices. They are Hollow cylindrical pipes, filled with a small/little amount of working fluid that evaporates to produce heat. This heat then rejected from another end for its application on various industrial processes.
This document provides an overview of heat pipes and their applications in electronics cooling. It discusses the basic components and operation of heat pipes including the evaporator, condenser, wick and working fluid. The key advantages of heat pipes are their high thermal conductivity and ability to transport heat efficiently. Limitations include the capillary and boiling limits. Different types of heat pipes are described along with considerations for choosing materials and designing heat pipes for specific applications like electronics cooling.
A heat pipe is a device that efficiently transports thermal energy from one point to another using the latent heat of vaporized working fluid. It has a higher effective thermal conductivity than solid conductors. A heat pipe consists of a container, working fluid, and wick structure. Heat is absorbed in the evaporator section, vaporizing the fluid. The vapor moves through the container and condenses in the condenser section, releasing heat. Capillary action in the wick pumps the condensed fluid back to the evaporator. Heat pipes are used to cool electronics and aerospace components due to their high conductivity and ability to dissipate large heat fluxes over long distances.
This document discusses heat pipes, including their working principle and key components. A heat pipe transfers heat from one location to another using an evaporation-condensation cycle. It consists of a container, working fluid, and wick/capillary structure. Heat is absorbed at the evaporator section where the fluid evaporates, then the vapor travels along the container to the condenser section where it condenses, releasing heat. The condensed fluid returns to the evaporator via capillary action in the wick. Heat pipes provide fast, efficient heat transfer with minimal temperature difference and no external power. They have various applications including electronics cooling, aerospace, and heat exchangers.
This document provides an overview of heat pipes, including:
- Heat pipes transfer thermal energy through the evaporation and condensation of a working fluid inside a sealed container.
- Key components are the working fluid, wick structure to return liquid, and sealed container.
- Different types of heat pipes include vapor chambers, variable conductance heat pipes, diode heat pipes, and thermosyphons.
- Heat pipes have applications in electronics cooling and other areas requiring efficient heat transfer over distance.
The document summarizes a seminar presentation on heat pipes. It introduces heat pipes and their working principle of transferring thermal energy through latent heat of vaporized working fluid within the heat pipe. It describes the components of heat pipes, requirements for working fluids, types of heat pipes, their applications, and advantages. Heat pipes provide efficient passive heat transfer and are used in electronics cooling, spacecraft, and other applications.
The document discusses heat pipes, which transfer heat using evaporation and condensation. Heat pipes work by having a container filled with a working fluid and wick. Heat is applied at the evaporator, vaporizing the fluid. The vapor moves through the container to the condenser, where it condenses and transfers heat. The condensed liquid is drawn back to the evaporator through capillary action in the wick. Heat pipes can transfer heat much more efficiently than conductive materials alone. They are used for electronics cooling, aerospace applications like satellites, and other applications requiring fast heat transfer over distance.
Experimentation on heat pipe and cfd analysis for performance enhancementeSAT Journals
Abstract
Heat Pipe is a heat transfer device used in many applications and it is very similar in some respects to the thermosyphon. Since there were several limitations of thermosyphon, heat pipe was developed. The idea of the heat pipe was first suggested in 1942, since then over a several decades the serious development of a heat pipe took place. Heat pipe mainly consists of three regions viz. evaporator, adiabatic and condenser section. The heat pipe differs from the thermosyphon by virtue of its ability to transport heat against gravity by an evaporation-condensation cycle. This research work includes experimentation on available heat pipe, development of CFD model and its validation with experimental results using CFD Tool. The results obtained by CFD are in good agreement with an experimental results. Since the heat pipe is used for transferring the heat, this research work focuses on increasing the heat transfer by modified model, modifications in terms of increased surface area, is proposed. From CFD analysis it was found that the proposed modified heat pipe shows enhancement in performance in terms of heat transfer rate by 19% when it is simulated for without heat sink case and 45% while with heat sink case, compared to conventional heat pipe. The mixture multiphase model from CFD too is used for simulation of heat pipe.
This document provides an overview of heat pipes, including their working principle, key components, types, advantages, and applications. A heat pipe transfers heat using an evaporation-condensation cycle within a sealed container consisting of a working fluid and capillary wick. Heat is absorbed at the evaporator section where the fluid evaporates, transferring heat through the vapor to the condenser section where it condenses, releasing heat and returning via the wick to the evaporator. Heat pipes can transfer heat very efficiently over long distances with minimal temperature difference due to the phase change process. Common applications include electronics cooling, aerospace systems, and industrial heat exchangers.
A heat pipe is a device that transfers heat using an evaporation-condensation cycle. It works by using a wick structure and working fluid inside a sealed container. Heat is absorbed at the evaporator section, causing the fluid to evaporate. The vapor travels along the container to the condenser section, where it condenses and releases heat. The condensate then returns to the evaporator via capillary action generated by the wick. Common materials for the container include copper, aluminum, and stainless steel. The wick is usually made of felt or metal foam and helps circulate the working fluid, such as water. Heat pipes can efficiently transfer heat over long distances and are used for electronics cooling and in aerospace
Seminar Report on Heat Pipes by Sumit SinghSumit Singh
This document is a seminar report on heat pipes submitted by Sumit Kumar for partial fulfillment of a Bachelor of Technology degree. The report provides an introduction to heat pipes, describing their basic components and working principles. It explains that heat pipes efficiently transport thermal energy using the latent heat of a working fluid's vaporization. The key components are an evacuated container lined with a wicking structure, and a small amount of working fluid. Heat is absorbed by evaporating the fluid in one section, with the vapor transferring heat and condensing in another section.
A heat pipe is a heat-transfer device that combines the principles of both thermal conductivity and phase transition to efficiently manage the transfer of heat between two solid interfaces.
The document summarizes a study of heat transfer from a circuit board using heat pipes. SINDA/FLUINT software was used to model the system and analyze the transient temperature evolution and effects of parametric variations. The study found that increasing the heat pipes' vaporization or condensation coefficients and heat load lowered the circuit board's hottest temperature, while increasing or decreasing the heat pipes' length increased the hottest temperature.
The document presents on the development and testing of a heat pipe solar collector using nanofluid. It introduces heat pipes, how they work, and their applications. Heat pipes transfer solar energy absorbed by the working fluid to a storage tank via natural or forced circulation. The document then discusses the concept of nanofluids, which increase thermal conductivity at low nanoparticle concentrations. There is scope for future work innovating new heat transfer techniques using efficient and eco-friendly fluids and refrigerants, as well as developing environmentally friendly nanofluids with improved thermal and transport properties. Heat pipes provide advantages like reduced need for reheat, no required input, virtually no maintenance, and being environmentally safe.
A heat pipe heat exchanger is a simple device which is made use of to transfer heat from one location to another, using an evaporation-condensation cycle. Heat pipes are referred to as the "superconductors" of heat due to their fast transfer capability with low heat loss.
This document provides an overview of heat pipes, including their working principle and key components. A heat pipe is a device that transfers heat using a vaporization-condensation cycle with very high efficiency. It contains a container, working fluid, and wick structure. As heat is applied at the evaporator end, the fluid vaporizes and moves through the container to the condenser end where it condenses and is pumped back to the evaporator by the wick, transferring heat in the process. Common working fluids, wick designs, and applications of heat pipes are discussed. Heat pipes can be used to efficiently transfer heat in electronics, aerospace, and other industrial applications.
Maniks is an Indian manufacturer of heat pipe heat exchangers with over 30 years of experience. Heat pipes transfer heat through a process of evaporation and condensation without bulky piping. Maniks offers several types of heat pipes that can recover waste heat from applications like air conditioners and transfer it for other industrial uses. Heat pipes have benefits like passive operation, high reliability, and low maintenance costs.
This document discusses compact heat exchangers, including their types (plate and frame, brazed plate, welded plate, spiral, plate fin, printed-circuit, shell-and-tube), advantages of higher efficiency and lower cost/volume, limitations of fouling and lack of awareness, and design considerations like materials and operating limits. Compact heat exchangers can replace conventional heat exchangers due to their benefits. Security, environmental, and cost aspects are also covered.
The document summarizes a senior project to experimentally test a nanofluid heat pipe. It begins with an introduction to heat pipes, describing their operation and applications. It then discusses using nanofluids as the working fluid to potentially improve heat transfer. The project will select a copper heat pipe, aluminum oxide nanofluid, and experimentally test the theoretical model. The experiment will measure temperatures along the heat pipe and compare results to theoretical predictions. The goal is to better understand how nanofluids impact heat pipe performance.
The document discusses compact heat exchangers, including their definition as having a heat transfer area density greater than 700 m2/m3. It describes several types of compact heat exchangers like plate and frame, brazed plate, welded plate, spiral, plate fin, and printed circuit heat exchangers. Advantages are listed as improved energy efficiency, smaller size, lower cost and improved safety. Limitations include fouling susceptibility and limited design choices for high pressures. Care must be taken to prevent fouling and corrosion in compact heat exchangers.
This document provides information on different types of boilers and their components. It discusses fire tube boilers and water tube boilers. It also describes auxiliary equipment that can be fitted to boilers like pressure gauges, water gauge glasses, and pressure relief valves. Additionally, it covers topics like superheaters, economizers, coal firing, gas firing, evaporation, heat pipes, and performance of tubular evaporators.
Influence of Different Parameters on Heat Pipe PerformanceIJERA Editor
In electrical and electronic industry due to miniaturization of electronic components heat density increases
which, in turns increases the heat flux inside it. Scientist and many researchers are doing lot of work in this field
for thermal management of devices. Heat pipe is a device that is used in electronic circuit (micro and power
electronics), spacecraft & electrical components for cooling purpose. It is based on the principle of evaporation
and condensation of working fluid. Heat pipe made up of three main parts are evaporator, adiabatic and
condenser sections. In this working fluid vaporise at evaporator and transfers heat to condenser by adiabatic
section where heat release to surrounding. Vapour flows possible from evaporator to condenser section due to
vapour pressure difference exist between them. Use of heat pipe material, type of working fluid & its property,
wick structure, orientation, filled ratio, operating condition, dimensions of pipe has a prominent effect on heat
pipe performance. Variation of these parameters for minimum thermal resistance gives better performance.
A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids flowing in opposite directions. It consists of many corrugated metal plates clamped together in a frame to create channels for fluid flow. Plate heat exchangers offer benefits like high heat transfer efficiency in a compact design, but are limited to lower pressures and flow rates than some other heat exchanger types. They are widely used in industrial processes for applications like heating and cooling.
This document discusses different types of modern heat exchangers, including shell and tube, plate, spiral, plate and shell, plate fin, and microchannel heat exchangers. It describes the basic components and functions of shell and tube heat exchangers. It also outlines key advantages and disadvantages of different heat exchanger types, such as their operating pressures and temperatures, efficiency, size, maintenance requirements, and materials. The document emphasizes that heat exchanger design must optimize minimizing pressure drop, maximizing thermal performance, and minimizing entropy generation.
Design Considerations for Plate Type Heat ExchangerArun Sarasan
A plate type heat exchanger consists of corrugated metal plates clamped together in a frame. Fluids flow between the plates, which have a high surface area and induce turbulence, allowing for efficient heat transfer. Key advantages are compact size, ability to handle low flow rates, and the option to perform multiple duties with one unit. Design involves selecting the number and dimensions of plates based on flow rates, properties of the fluids, and heat transfer correlations or manufacturer charts.
What is heat exchanger & its Functions
Types of Heat Exchangers
Compact Heat Exchangers
Part of Fin Plate Heat Exchangers
Advantages & Disadvantages of Fin Plate Exchangers
Materials & Manufacturing
Overall Heat transfer Coefficient & Fouling Factor
LMTD Method
Effectiveness - NTU Method
The document describes Rittal's LCP Hybrid liquid cooling system. It combines heat pipe technology with a large cold water heat exchanger surface to provide efficient cooling of server racks. The LCP Hybrid replaces a rack's rear door, connecting to an existing cold water circuit to regulate the rack's climate without requiring additional fans. It distributes heat evenly across the heat exchanger surface for maximum efficiency and energy savings. The LCP Hybrid is easily installed, provides full rack access, and problem-free water connections.
Experimentation to predict the thermal performance of conventional heat pipe ...eSAT Journals
Abstract
This work attempts to analyses the performance of conventional heat pipe with water and hydrocarbon as working fluid. The
hydrocarbon working fluid involve acetone and methanol. The experimental investigation involves the determination of thermal
resistance of conventional heat pipe at various heat input and to determine the best working fluid out of the water, acetone and
methanol. Conventional heat pipe is filled with water, acetone and methanol with the filling ratio of 60 % with this filling ratio the
thermal performance of the device is investigated.
Keywords: Working Fluid, Heat Transfer, Thermal Resistance, Thermal Performance.
The document discusses heat pipes, which transfer heat using evaporation and condensation. Heat pipes work by having a container filled with a working fluid and wick. Heat is applied at the evaporator, vaporizing the fluid. The vapor moves through the container to the condenser, where it condenses and transfers heat. The condensed liquid is drawn back to the evaporator through capillary action in the wick. Heat pipes can transfer heat much more efficiently than conductive materials alone. They are used for electronics cooling, aerospace applications like satellites, and other applications requiring fast heat transfer over distance.
Experimentation on heat pipe and cfd analysis for performance enhancementeSAT Journals
Abstract
Heat Pipe is a heat transfer device used in many applications and it is very similar in some respects to the thermosyphon. Since there were several limitations of thermosyphon, heat pipe was developed. The idea of the heat pipe was first suggested in 1942, since then over a several decades the serious development of a heat pipe took place. Heat pipe mainly consists of three regions viz. evaporator, adiabatic and condenser section. The heat pipe differs from the thermosyphon by virtue of its ability to transport heat against gravity by an evaporation-condensation cycle. This research work includes experimentation on available heat pipe, development of CFD model and its validation with experimental results using CFD Tool. The results obtained by CFD are in good agreement with an experimental results. Since the heat pipe is used for transferring the heat, this research work focuses on increasing the heat transfer by modified model, modifications in terms of increased surface area, is proposed. From CFD analysis it was found that the proposed modified heat pipe shows enhancement in performance in terms of heat transfer rate by 19% when it is simulated for without heat sink case and 45% while with heat sink case, compared to conventional heat pipe. The mixture multiphase model from CFD too is used for simulation of heat pipe.
This document provides an overview of heat pipes, including their working principle, key components, types, advantages, and applications. A heat pipe transfers heat using an evaporation-condensation cycle within a sealed container consisting of a working fluid and capillary wick. Heat is absorbed at the evaporator section where the fluid evaporates, transferring heat through the vapor to the condenser section where it condenses, releasing heat and returning via the wick to the evaporator. Heat pipes can transfer heat very efficiently over long distances with minimal temperature difference due to the phase change process. Common applications include electronics cooling, aerospace systems, and industrial heat exchangers.
A heat pipe is a device that transfers heat using an evaporation-condensation cycle. It works by using a wick structure and working fluid inside a sealed container. Heat is absorbed at the evaporator section, causing the fluid to evaporate. The vapor travels along the container to the condenser section, where it condenses and releases heat. The condensate then returns to the evaporator via capillary action generated by the wick. Common materials for the container include copper, aluminum, and stainless steel. The wick is usually made of felt or metal foam and helps circulate the working fluid, such as water. Heat pipes can efficiently transfer heat over long distances and are used for electronics cooling and in aerospace
Seminar Report on Heat Pipes by Sumit SinghSumit Singh
This document is a seminar report on heat pipes submitted by Sumit Kumar for partial fulfillment of a Bachelor of Technology degree. The report provides an introduction to heat pipes, describing their basic components and working principles. It explains that heat pipes efficiently transport thermal energy using the latent heat of a working fluid's vaporization. The key components are an evacuated container lined with a wicking structure, and a small amount of working fluid. Heat is absorbed by evaporating the fluid in one section, with the vapor transferring heat and condensing in another section.
A heat pipe is a heat-transfer device that combines the principles of both thermal conductivity and phase transition to efficiently manage the transfer of heat between two solid interfaces.
The document summarizes a study of heat transfer from a circuit board using heat pipes. SINDA/FLUINT software was used to model the system and analyze the transient temperature evolution and effects of parametric variations. The study found that increasing the heat pipes' vaporization or condensation coefficients and heat load lowered the circuit board's hottest temperature, while increasing or decreasing the heat pipes' length increased the hottest temperature.
The document presents on the development and testing of a heat pipe solar collector using nanofluid. It introduces heat pipes, how they work, and their applications. Heat pipes transfer solar energy absorbed by the working fluid to a storage tank via natural or forced circulation. The document then discusses the concept of nanofluids, which increase thermal conductivity at low nanoparticle concentrations. There is scope for future work innovating new heat transfer techniques using efficient and eco-friendly fluids and refrigerants, as well as developing environmentally friendly nanofluids with improved thermal and transport properties. Heat pipes provide advantages like reduced need for reheat, no required input, virtually no maintenance, and being environmentally safe.
A heat pipe heat exchanger is a simple device which is made use of to transfer heat from one location to another, using an evaporation-condensation cycle. Heat pipes are referred to as the "superconductors" of heat due to their fast transfer capability with low heat loss.
This document provides an overview of heat pipes, including their working principle and key components. A heat pipe is a device that transfers heat using a vaporization-condensation cycle with very high efficiency. It contains a container, working fluid, and wick structure. As heat is applied at the evaporator end, the fluid vaporizes and moves through the container to the condenser end where it condenses and is pumped back to the evaporator by the wick, transferring heat in the process. Common working fluids, wick designs, and applications of heat pipes are discussed. Heat pipes can be used to efficiently transfer heat in electronics, aerospace, and other industrial applications.
Maniks is an Indian manufacturer of heat pipe heat exchangers with over 30 years of experience. Heat pipes transfer heat through a process of evaporation and condensation without bulky piping. Maniks offers several types of heat pipes that can recover waste heat from applications like air conditioners and transfer it for other industrial uses. Heat pipes have benefits like passive operation, high reliability, and low maintenance costs.
This document discusses compact heat exchangers, including their types (plate and frame, brazed plate, welded plate, spiral, plate fin, printed-circuit, shell-and-tube), advantages of higher efficiency and lower cost/volume, limitations of fouling and lack of awareness, and design considerations like materials and operating limits. Compact heat exchangers can replace conventional heat exchangers due to their benefits. Security, environmental, and cost aspects are also covered.
The document summarizes a senior project to experimentally test a nanofluid heat pipe. It begins with an introduction to heat pipes, describing their operation and applications. It then discusses using nanofluids as the working fluid to potentially improve heat transfer. The project will select a copper heat pipe, aluminum oxide nanofluid, and experimentally test the theoretical model. The experiment will measure temperatures along the heat pipe and compare results to theoretical predictions. The goal is to better understand how nanofluids impact heat pipe performance.
The document discusses compact heat exchangers, including their definition as having a heat transfer area density greater than 700 m2/m3. It describes several types of compact heat exchangers like plate and frame, brazed plate, welded plate, spiral, plate fin, and printed circuit heat exchangers. Advantages are listed as improved energy efficiency, smaller size, lower cost and improved safety. Limitations include fouling susceptibility and limited design choices for high pressures. Care must be taken to prevent fouling and corrosion in compact heat exchangers.
This document provides information on different types of boilers and their components. It discusses fire tube boilers and water tube boilers. It also describes auxiliary equipment that can be fitted to boilers like pressure gauges, water gauge glasses, and pressure relief valves. Additionally, it covers topics like superheaters, economizers, coal firing, gas firing, evaporation, heat pipes, and performance of tubular evaporators.
Influence of Different Parameters on Heat Pipe PerformanceIJERA Editor
In electrical and electronic industry due to miniaturization of electronic components heat density increases
which, in turns increases the heat flux inside it. Scientist and many researchers are doing lot of work in this field
for thermal management of devices. Heat pipe is a device that is used in electronic circuit (micro and power
electronics), spacecraft & electrical components for cooling purpose. It is based on the principle of evaporation
and condensation of working fluid. Heat pipe made up of three main parts are evaporator, adiabatic and
condenser sections. In this working fluid vaporise at evaporator and transfers heat to condenser by adiabatic
section where heat release to surrounding. Vapour flows possible from evaporator to condenser section due to
vapour pressure difference exist between them. Use of heat pipe material, type of working fluid & its property,
wick structure, orientation, filled ratio, operating condition, dimensions of pipe has a prominent effect on heat
pipe performance. Variation of these parameters for minimum thermal resistance gives better performance.
A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids flowing in opposite directions. It consists of many corrugated metal plates clamped together in a frame to create channels for fluid flow. Plate heat exchangers offer benefits like high heat transfer efficiency in a compact design, but are limited to lower pressures and flow rates than some other heat exchanger types. They are widely used in industrial processes for applications like heating and cooling.
This document discusses different types of modern heat exchangers, including shell and tube, plate, spiral, plate and shell, plate fin, and microchannel heat exchangers. It describes the basic components and functions of shell and tube heat exchangers. It also outlines key advantages and disadvantages of different heat exchanger types, such as their operating pressures and temperatures, efficiency, size, maintenance requirements, and materials. The document emphasizes that heat exchanger design must optimize minimizing pressure drop, maximizing thermal performance, and minimizing entropy generation.
Design Considerations for Plate Type Heat ExchangerArun Sarasan
A plate type heat exchanger consists of corrugated metal plates clamped together in a frame. Fluids flow between the plates, which have a high surface area and induce turbulence, allowing for efficient heat transfer. Key advantages are compact size, ability to handle low flow rates, and the option to perform multiple duties with one unit. Design involves selecting the number and dimensions of plates based on flow rates, properties of the fluids, and heat transfer correlations or manufacturer charts.
What is heat exchanger & its Functions
Types of Heat Exchangers
Compact Heat Exchangers
Part of Fin Plate Heat Exchangers
Advantages & Disadvantages of Fin Plate Exchangers
Materials & Manufacturing
Overall Heat transfer Coefficient & Fouling Factor
LMTD Method
Effectiveness - NTU Method
The document describes Rittal's LCP Hybrid liquid cooling system. It combines heat pipe technology with a large cold water heat exchanger surface to provide efficient cooling of server racks. The LCP Hybrid replaces a rack's rear door, connecting to an existing cold water circuit to regulate the rack's climate without requiring additional fans. It distributes heat evenly across the heat exchanger surface for maximum efficiency and energy savings. The LCP Hybrid is easily installed, provides full rack access, and problem-free water connections.
Experimentation to predict the thermal performance of conventional heat pipe ...eSAT Journals
Abstract
This work attempts to analyses the performance of conventional heat pipe with water and hydrocarbon as working fluid. The
hydrocarbon working fluid involve acetone and methanol. The experimental investigation involves the determination of thermal
resistance of conventional heat pipe at various heat input and to determine the best working fluid out of the water, acetone and
methanol. Conventional heat pipe is filled with water, acetone and methanol with the filling ratio of 60 % with this filling ratio the
thermal performance of the device is investigated.
Keywords: Working Fluid, Heat Transfer, Thermal Resistance, Thermal Performance.
Performance investigation of conventional heat pipe with hydrocarbon as worki...eSAT Journals
Abstract
This work attempts to analyses the performance of conventional heat pipe with hydrocarbon as working fluid. The performance
investigation involves the determination of thermal resistance of conventional heat pipe at various heat input. And to determine
the best hydrocarbon working fluid out of the acetone and methanol. Conventional heat pipe is filled with acetone and methanol
with the filling ratio of 60 % with this filling ratio the performance of the device is investigated.
Keywords: Working Fluid, Heat Transfer, Thermal Resistance.
Experimentation on heat pipe and cfd analysis for performance enhancementeSAT Journals
Abstract
Heat Pipe is a heat transfer device used in many applications and it is very similar in some respects to the thermosyphon. Since there were several limitations of thermosyphon, heat pipe was developed. The idea of the heat pipe was first suggested in 1942, since then over a several decades the serious development of a heat pipe took place. Heat pipe mainly consists of three regions viz. evaporator, adiabatic and condenser section. The heat pipe differs from the thermosyphon by virtue of its ability to transport heat against gravity by an evaporation-condensation cycle. This research work includes experimentation on available heat pipe, development of CFD model and its validation with experimental results using CFD Tool. The results obtained by CFD are in good agreement with an experimental results. Since the heat pipe is used for transferring the heat, this research work focuses on increasing the heat transfer by modified model, modifications in terms of increased surface area, is proposed. From CFD analysis it was found that the proposed modified heat pipe shows enhancement in performance in terms of heat transfer rate by 19% when it is simulated for without heat sink case and 45% while with heat sink case, compared to conventional heat pipe. The mixture multiphase model from CFD too is used for simulation of heat pipe.
EXPERIMENTAL AND THEORTICAL STUDY OF THE THERMAL PERFORMANCE OF HEAT PIPE HEA...IAEME Publication
1. An experimental and theoretical study was conducted on a four row heat pipe heat exchanger with distilled water as the working fluid.
2. Tests were performed at varying air flow rates and inlet evaporator temperatures to analyze the effect on effectiveness.
3. The maximum effectiveness occurred at a mass flow rate ratio of 2. A theoretical model was developed and showed good agreement with experimental results.
The document describes a double pipe heat exchanger and provides classifications of heat exchangers. A double pipe heat exchanger consists of two concentric pipes and connecting tees to transfer thermal energy between two fluids. Heat exchangers can be classified based on their heat transfer mechanism, construction type, flow arrangement, number of passes, and operating temperatures and pressures. Common types include plate, tubular, extended surface, and phase change heat exchangers.
This document provides an overview of solar refrigeration systems. It discusses the basic principles of refrigeration using the vapor compression cycle. It then explains how solar energy can be used to power refrigeration through photovoltaic, solar thermal, or absorption refrigeration systems. The key components and operating principles of each solar refrigeration method are described, including diagrams of typical system layouts. Design considerations for matching the solar energy collection and storage to the refrigeration system requirements are also covered.
This document describes a solar refrigeration system that uses solar energy to power a vapor absorption refrigeration system (VARS). VARS uses pairs like ammonia-water or lithium bromide-water and works by absorbing and decompressing vapor to produce cooling. The solar energy heats the generator of the VARS, producing vapor without electricity. Calculations are provided for collector area, heat gain/loss, and equivalent sunny days per month to design a system for a location based on its condenser/evaporator pressures and temperatures.
The document discusses several technologies for solar-powered refrigeration and ice production. It describes how solar ice makers use solar energy to generate ammonia refrigerant during the day, then form ice at night when the generator cools. Another system uses activated carbon impregnated with methanol in a solar collector to adsorb vapor during the day, then desorb it at night to provide cooling in an evaporator and freeze water. A hybrid system is also presented that combines solar water heating with an adsorption refrigeration cycle to power a refrigerator.
Air conditioning works by altering the temperature and humidity of air to more comfortable levels. There are two main types: window units which fit in windows, and split systems which separate the hot and cold components.
Window units contain a compressor, expansion valve, hot and cold coils, fans, and controls. Split systems separate the cold indoor coil from the hot outdoor condensing unit. When powered, the compressor increases the pressure and temperature of the working fluid which then cools as it passes through the condenser.
Solar air conditioning uses solar power through hybrid systems that combine photovoltaics and batteries, or absorption chillers that cool air through evaporation and solar-powered fans. While more environmentally friendly than conventional AC
1. The document describes the basic components and working of a simple vapor absorption refrigeration system (VARS). It explains the working of the absorber, generator, condenser, expansion device and evaporator.
2. It then discusses the concept of circulation ratio and provides the steady flow analysis and governing equations for a VARS using the water-lithium bromide pair.
3. It also gives the key equations to calculate the COP, heat input/output of the various components, and provides a sample problem to calculate the COP and total heat rejection of a given VARS system.
Solar refrigeration uses solar energy to power refrigeration systems for food and medicine preservation and comfort cooling. There are three main types of solar refrigeration: photovoltaic operated vapor compression, solar mechanical vapor compression using a Rankine cycle, and absorption refrigeration. Absorption refrigeration replaces the compressor with a thermal compression system using ammonia as the working fluid and a generator powered by solar collectors to desorb the ammonia, providing refrigeration without large mechanical energy inputs. While solar refrigeration has benefits of being environmentally friendly and not relying on power grids, its high initial costs and low coefficient of performance currently limit widespread adoption.
The document discusses vapour absorption refrigeration systems. It describes a simple vapour absorption system using ammonia and water, and a practical system. It defines the coefficient of performance (COP) of an ideal absorption system and lists properties desired in ideal refrigerants and absorbents. The document also discusses the domestic Electrolux refrigerator, which uses ammonia, hydrogen and water, and operates entirely through gravity flow without pumps. Key advantages of absorption systems over compression include having no moving parts and ability to operate on thermal energy alone.
SOLAR POWER VAPOUR ABSORPTION REFRIGERATION SYSTEMaj12345ay
USE OF SOLAR POWER IN REFRIGERATION SYSTEM
The power incident from the sun to the earth has very much amount of energy that the present consumption rate of all the commercial and general uses. We utilize only 0.1% of total incident sun energy on the surface of earth. Thus solar energy can fulfill our present as well as future needs of energy. That is a reason it called renewable sources of energy. It is also environmental clean source of energy and available at whole part of world where people live. Using of solar energy in the field of refrigeration and air conditioning system it become very economical.
In our project we provide solar heat in generator for heating purpose of vapor compression refrigeration system.
For past few decades, energy has played a prominent role in the development of technology and economy. Energy has now become inevitable factor for production as well. The objective of this project is to develop an environment friendly vapour absorption system. Vapour absorption system uses heat energy, instead of mechanical energy as in vapour compression system, in order to change the condition of refrigerant required for the operation of the cycle. R 717(NH3) and water are used as working fluids in this system. The basic idea of this project is derived from the solar heating panel to obtain heat energy, instead of using any conventional source of heat energy. In this project various observations are done by varying operating conditions related to heat source, condenser, absorber and evaporator temperatures. The drawback of this system is that, it remains idle in the cloudy weather conditions.
COMPONENTS USED IN SOLAR POWERED AQUA-AMMONIA VAPOUR ABSORPTION SYSTEM
• ABSORBER
• PUMP
• HEAT EXCHANGER
• GENERATOR
• SOLAR PANEL
• CONDENSER
• EXPANSION VALVE
• EVAPORATOR
• DC BATTERY
• FAN
Abstract: Heat pipe are high-efficient heat transfer devices and have been widely applied in various thermal systems. Since heat pipe utilize the phase change of the working fluid to transport the heat, the selection of working fluid is of essential importance to promote the thermal performance of heat pipe. Owing to the heat transfer enhancement effect of nanofluid in the single phase and phase change heat transfer, some researchers have applied various nanofluids in heat pipe as the working fluids to enhance their heat transfer performance.
Enhancement of heat transfer in tube in-tube heat exchangers using twisted in...Ijrdt Journal
Heat exchangers have several industrial and engineering applications. There are different methods to enhance heat transfer in heat exchangers. Passive technique of heat transfer is the most economical and best suited one. The role of inserts in internal forced convection has been widely acknowledged as a passive device in the heat transfer enhancement. One of such technique is introduction of twisted inserts which enhances the heat transfer coefficient. Twisted aluminium inserts when placed in the path of the fluid flow, creates a high degree of turbulence resulting in an increase in the heat transfer rate. By placing inserts, it is expected that the benefits due to the increased heat transfer coefficient overcome the higher cost involved because of the increased frictional losses. The work mainly focuses on increasing the heat transfer of tube-in-tube heat exchangers by using twisted aluminium inserts. The results obtained from the tube with twisted aluminium insert are compared with those without twisted insert using standard properties of heat transfer (LMTD & Effectiveness). The relations based on the data gathered during this work for predicting the heat transfer coefficient of the horizontal pipe with twisted taped insert are proposed. According to the results, in order to obtain maximum heat transfer, the twist ratio must be at the lowest level.
THERMO HYDRAULICS PERFORMANCE OF TURBULENT FLOW HEAT TRANSFER THROUGH SQUARE ...IAEME Publication
This paper describes the experimental study of square ducts with inserts. Experiments are conducted for air with uniform heat flux condition. The top wall surface is made rough with metal ribs of square section. The roughened wall is uniformly heated and other walls are insulated. The heat transfer coefficient enhances square channel at injection of different inserts. The performance of the geometry under investigation has been evaluated .The heat transfer coefficient of air is increase by 46% than plane square ducts with inserts. The heat transfer and pressure drop measurements have been taken in separate sections .
IRJET- Modelling and CFD Simulation of Prototype of AC Plant Chiller On-Board...IRJET Journal
This document summarizes a study that models and simulates a shell and tube heat exchanger used in marine ship air conditioning plants. The study involves:
1. Modeling the geometry of a prototype shell and tube heat exchanger in Solidworks based on design calculations.
2. Meshing the model in ICEM CFD and applying boundary conditions representing different mass flow rates to simulate heat transfer.
3. Using ANSYS Fluent CFD software to analyze temperature distribution and flow patterns within the shell and tubes at 100% and 75% loading.
4. Comparing CFD results to experimental temperature data from factory acceptance trials to validate the simulation model.
The goal is to model the
An experimental study of heat transfer in a corrugated plate heat exchangerIAEME Publication
1. The document discusses an experimental study of heat transfer in a corrugated plate heat exchanger. Experiments were conducted to analyze heat transfer characteristics for different flow arrangements of hot and cold fluids through the heat exchanger.
2. The effectiveness and exergy loss of the heat exchanger were calculated for parallel and counter flow arrangements. The average effectiveness was found to be 48% higher and exergy loss 33% lower in the counter flow arrangement compared to the parallel flow arrangement.
3. Maximum heat transfer was observed at the highest hot fluid inlet temperature of 70°C, being 5% greater in the parallel flow arrangement. However, the non-dimensional exergy loss and log mean temperature difference were both lower in the
Thermo hydraulics performance of turbulent flow heat transfer through square ...IAEME Publication
This document describes an experimental study of heat transfer in square ducts with inserts. The study investigated the effects of inserts on heat transfer coefficient and pressure drop in turbulent air flow through square ducts. Experiments were conducted with a square duct heated on one wall to create a uniform heat flux condition, while other walls were insulated. Measurements of temperature, pressure drop, and other variables were taken to analyze heat transfer and flow characteristics for Reynolds numbers between 10,000 and 100,000. The results show that inserts can enhance the heat transfer coefficient in square ducts by up to 46% compared to plain ducts, though they also increase pressure drop.
Thermo hydraulics performance of turbulent flow heat transfer through square ...IAEME Publication
This document describes an experimental study of heat transfer in square ducts with inserts. The study investigated the effects of inserts on heat transfer coefficient and pressure drop in turbulent air flow through square ducts. Experiments were conducted with a square duct heated on one wall to create a uniform heat flux condition, while other walls were insulated. Measurements of temperature, pressure drop, and other variables were taken to analyze heat transfer and flow characteristics for Reynolds numbers between 10,000 and 100,000. The results show that inserts can enhance the heat transfer coefficient in square ducts by up to 46% compared to plain ducts, though they also increase pressure drop due to increased flow friction.
IRJET- A Review on Basics of Heat ExchangerIRJET Journal
This document reviews the basics of heat exchangers. It discusses that heat exchangers are used to transfer heat between two or more fluids for heating and cooling processes. The three main types of heat exchangers are shell and tube, plate, and double pipe heat exchangers. It also discusses computational fluid dynamics as a method to analyze fluid flow and heat transfer in heat exchangers numerically. The document then reviews the basic design methods for two fluid heat exchangers, including the log-mean temperature difference method, effectiveness-NTU method, and other graphical methods.
AN EXPERIMENTAL STUDY OF HEAT TRANSFER IN A CORRUGATED PLATE HEAT EXCHANGER IAEME Publication
In the present work an attempt has been made to investigate the performance of a corrugated plate heat exchanger by the first law and the second law of thermodynamics. Experiments were conducted to determine the laminar convective heat transfer characteristics for fully developed flow of hot and cold fluid in alternate ducts. Experiments were conducted on a three channel 1-1 pass corrugated plate heat exchanger. Hot fluid was made to flow in the central channel to get cooled by
cold fluid in the top and bottom channels in parallel and counter flow arrangements.
IRJET-Experimental Study on Helical Tube Heat Exchanger by Varying Cross Sect...IRJET Journal
This document presents an experimental study on a helical tube heat exchanger. The study varies the cross-section of the tubes by adding nano particles like TiO2 and SiO2 to the working fluid. The performance of a helical coil heat exchanger is analyzed and compared to a straight tube heat exchanger based on parameters like log mean temperature difference (LMTD), heat transfer coefficient, and Reynolds number. The results show that a helical coil heat exchanger with nano particles added to the working fluid is more efficient, with its overall heat transfer coefficient increasing with mass flow rate.
THERMAL ANALYSIS OF SHELL AND TUBE TYPE HEAT EXCHANGER TO DEMONSTRATE THE HEA...IAEME Publication
This paper consists of a simplified model of shell and tube type heat exchanger having both interacting mediums as water and steam. In this paper we have first designed a shell and tube heat exchanger to heat water from 40℃ to 70℃ by steam at 140℃ temperature. The design has been done using Kern’s method in order to obtain various dimensions such as shell, tubes, baffles etc. A computer model using CATIA V5 has been developed by using the derived dimensions of heat exchanger. Then the thermal simulation in ANSYS has been performed by applying several thermal loads on different faces and edges. The heat transfer capabilities of several thermal materials have been compared by assigning different materials.
Analysis of Heat Transfer in Spiral Plate Heat Exchanger Using Experimental a...ijsrd.com
Heat transfer is the key to several processes in industrial application. In a present days maximum efficient heat transfer equipment are in demand due to increasing energy cost. For achieving maximum heat transfer, the engineers are continuously upgrading their knowledge and skills by their past experience. Present work is a skip in the direction of demonstrating the use of the computational technique as a tool to substitute experimental techniques. For this purpose an experimental set up has been designed and developed. Analysis of heat transfer in spiral plate heat exchanger is performed and same Analysis of heat transfer in spiral plate heat exchanger can be done by commercially procurable computational fluid dynamic (CFD) using ANSYS CFX and validated based on this forecasting. Analysis has been carried out in parallel and counter flow with inward and outward direction for achieving maximum possible heat transfer. In this problem of heat transfer involved the condition where Reynolds number again and again varies as the fluid traverses inside the section of flow from inlet to exit, mass flow rate of working fluid is been modified with time. By more and more analysis and experimentation and systematic data degradation leads to the conclusion that the maximum heat transfer rates is obtained in case of the inward parallel flow configuration compared to all other counterparts, which observed to vary with small difference in each section. Furthermore, for the increase heat transfer rate in spiral plate heat exchanger is obtain by cascading system.
Experimental Investigation on the Heat Transfer Coefficient of the Thermosyph...IJERA Editor
This document presents an experimental investigation of the heat transfer coefficient of a two-phase closed thermosyphon with different cross-section shapes (circular, square, and rectangular). Methanol was used as the working fluid. Thermocouples were used to measure the temperature distribution across the thermosyphon surface under varying input powers (200-500W). The results showed that the heat transfer coefficient increases with increasing input power. The maximum heat transfer coefficient of 1815 W/m2C was obtained for the square cross-section at an input power of 500W. Thermal resistance decreases with increasing input power. Equations for calculating hydraulic diameter, input/output heat rates, average heat transfer rate, thermal resistance,
Optimization of a Shell and Tube Condenser using Numerical MethodIJERA Editor
The purpose of this study was to investigate the effect of installation of the tube external surfaces, their parameter and variable in a shell-and-tube condenser. Variation of heat transfer coefficient with each variable of shell and tube condenser was measured each test. The optimization tube outside diameter size was analyzed and use extended surface area attached tube with tube material and tube layout and arrangement (Number of tube a triangular or hexagonal arrangement) on shell-and tube condenser. The computer programming was used to get faster output in less time. Results suggest that mean heat transfer coefficient in variable condition were mainly at velocity is fixed. And also average additional surfaces and tube layout and the arrangement comparison with the quantity of the heat transfer.
A Review- Comparative Study of Thermal and Hydrostatic Performance Analysis O...IRJET Journal
This document summarizes research comparing the thermal and hydrostatic performance of helical coil heat exchangers and straight tube heat exchangers. It first provides background on heat exchangers and discusses how helical coils offer advantages over straight tubes, including higher heat transfer coefficients and more compact designs. It then reviews several previous studies that have found helical coils provide higher heat transfer rates compared to straight tubes. Specifically, one study found heat transfer increased up to 3.955 times with corrugated tubes compared to smooth tubes. Another study found Nusselt numbers and friction factors increased up to 117% and 254% respectively when both inner and outer tubes were corrugated compared to only the inner tube being corrugated.
CFD Investigation of Compact Heat Exchanger Having Different Fins with Nanofl...IRJET Journal
This document summarizes research on using computational fluid dynamics (CFD) to investigate heat transfer in a compact heat exchanger with different fin types and titanium dioxide nanofluid. It discusses past research on various techniques for enhancing heat transfer and reducing pressure losses in heat exchangers. The document then outlines the objectives, methodology, and potential implications of research using CFD and limited experimental data to develop new heat transfer and pressure drop correlations for plain, offset strip, and wavy fins, which are common in applications like cryogenics and aerospace. These new correlations could provide more accurate and broadly applicable insights for heat exchanger design compared to existing correlations.
IRJET- Performance Improvement of PCM Assisted Heat PipeIRJET Journal
1) The document describes an experiment to improve the performance of a heat pipe assisted by phase change material (PCM) by introducing metal rings into the PCM.
2) PCM provides additional heat absorption and storage compared to a normal heat pipe, but has low thermal conductivity, limiting heat transfer.
3) The researchers introduced metal rings with higher thermal conductivity than the PCM material to increase the surface area in contact with the PCM and thereby increase the heat transfer rate from the heat pipe into the PCM.
4) Testing showed that the modified heat pipe with metal rings improved performance by 9.38% compared to the heat pipe without metal rings.
A heat pipe heat exchanger is a simple device which is made use of to transfer heat from one location to another, using an evaporation-condensation cycle.
The document summarizes current heat pipe technology and its limitations. It describes how heat pipes work by using capillary action in a wick structure to transport heat via phase change of a working fluid between an evaporator and condenser section. Key limitations are the wick capillary and entrainment limits. Heat pipes can currently transfer up to 10W/cm2 and handle heat loads up to 15W. Micro loop heat pipes are an emerging technology that can achieve higher heat transfer densities of up to 30W/cm2 and heat loads over 120W by addressing these limitations.
Heat pipes are passive heat transfer devices that can transport heat over long distances with very little temperature difference between the heat source and heat sink. They work by evaporating a working fluid in an evaporator section and condensing it in a condenser section, using capillary action to return the condensed fluid. Heat pipes were first developed in the 1960s and have since found applications in electronics cooling, spacecraft thermal control, and industrial heat recovery systems. This document provides an introduction and overview of heat pipes, their operating principles, types, applications, and the status of heat pipe manufacturing in India.
Similar to Parametric study of the performance of heat pipe – a review 2 (20)
Submission Deadline: 30th September 2022
Acceptance Notification: Within Three Days’ time period
Online Publication: Within 24 Hrs. time Period
Expected Date of Dispatch of Printed Journal: 5th October 2022
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...IAEME Publication
White layer thickness (WLT) formed and surface roughness in wire electric discharge turning (WEDT) of tungsten carbide composite has been made to model through response surface methodology (RSM). A Taguchi’s standard Design of experiments involving five input variables with three levels has been employed to establish a mathematical model between input parameters and responses. Percentage of cobalt content, spindle speed, Pulse on-time, wire feed and pulse off-time were changed during the experimental tests based on the Taguchi’s orthogonal array L27 (3^13). Analysis of variance (ANOVA) revealed that the mathematical models obtained can adequately describe performance within the parameters of the factors considered. There was a good agreement between the experimental and predicted values in this study.
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURSIAEME Publication
The study explores the reasons for a transgender to become entrepreneurs. In this study transgender entrepreneur was taken as independent variable and reasons to become as dependent variable. Data were collected through a structured questionnaire containing a five point Likert Scale. The study examined the data of 30 transgender entrepreneurs in Salem Municipal Corporation of Tamil Nadu State, India. Simple Random sampling technique was used. Garrett Ranking Technique (Percentile Position, Mean Scores) was used as the analysis for the present study to identify the top 13 stimulus factors for establishment of trans entrepreneurial venture. Economic advancement of a nation is governed upon the upshot of a resolute entrepreneurial doings. The conception of entrepreneurship has stretched and materialized to the socially deflated uncharted sections of transgender community. Presently transgenders have smashed their stereotypes and are making recent headlines of achievements in various fields of our Indian society. The trans-community is gradually being observed in a new light and has been trying to achieve prospective growth in entrepreneurship. The findings of the research revealed that the optimistic changes are taking place to change affirmative societal outlook of the transgender for entrepreneurial ventureship. It also laid emphasis on other transgenders to renovate their traditional living. The paper also highlights that legislators, supervisory body should endorse an impartial canons and reforms in Tamil Nadu Transgender Welfare Board Association.
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURSIAEME Publication
Since ages gender difference is always a debatable theme whether caused by nature, evolution or environment. The birth of a transgender is dreadful not only for the child but also for their parents. The pain of living in the wrong physique and treated as second class victimized citizen is outrageous and fully harboured with vicious baseless negative scruples. For so long, social exclusion had perpetuated inequality and deprivation experiencing ingrained malign stigma and besieged victims of crime or violence across their life spans. They are pushed into the murky way of life with a source of eternal disgust, bereft sexual potency and perennial fear. Although they are highly visible but very little is known about them. The common public needs to comprehend the ravaged arrogance on these insensitive souls and assist in integrating them into the mainstream by offering equal opportunity, treat with humanity and respect their dignity. Entrepreneurship in the current age is endorsing the gender fairness movement. Unstable careers and economic inadequacy had inclined one of the gender variant people called Transgender to become entrepreneurs. These tiny budding entrepreneurs resulted in economic transition by means of employment, free from the clutches of stereotype jobs, raised standard of living and handful of financial empowerment. Besides all these inhibitions, they were able to witness a platform for skill set development that ignited them to enter into entrepreneurial domain. This paper epitomizes skill sets involved in trans-entrepreneurs of Thoothukudi Municipal Corporation of Tamil Nadu State and is a groundbreaking determination to sightsee various skills incorporated and the impact on entrepreneurship.
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONSIAEME Publication
The banking and financial services industries are experiencing increased technology penetration. Among them, the banking industry has made technological advancements to better serve the general populace. The economy focused on transforming the banking sector's system into a cashless, paperless, and faceless one. The researcher wants to evaluate the user's intention for utilising a mobile banking application. The study also examines the variables affecting the user's behaviour intention when selecting specific applications for financial transactions. The researcher employed a well-structured questionnaire and a descriptive study methodology to gather the respondents' primary data utilising the snowball sampling technique. The study includes variables like performance expectations, effort expectations, social impact, enabling circumstances, and perceived risk. Each of the aforementioned variables has a major impact on how users utilise mobile banking applications. The outcome will assist the service provider in comprehending the user's history with mobile banking applications.
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONSIAEME Publication
Technology upgradation in banking sector took the economy to view that payment mode towards online transactions using mobile applications. This system enabled connectivity between banks, Merchant and user in a convenient mode. there are various applications used for online transactions such as Google pay, Paytm, freecharge, mobikiwi, oxygen, phonepe and so on and it also includes mobile banking applications. The study aimed at evaluating the predilection of the user in adopting digital transaction. The study is descriptive in nature. The researcher used random sample techniques to collect the data. The findings reveal that mobile applications differ with the quality of service rendered by Gpay and Phonepe. The researcher suggest the Phonepe application should focus on implementing the application should be user friendly interface and Gpay on motivating the users to feel the importance of request for money and modes of payments in the application.
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINOIAEME Publication
The prototype of a voice-based ATM for visually impaired using Arduino is to help people who are blind. This uses RFID cards which contain users fingerprint encrypted on it and interacts with the users through voice commands. ATM operates when sensor detects the presence of one person in the cabin. After scanning the RFID card, it will ask to select the mode like –normal or blind. User can select the respective mode through voice input, if blind mode is selected the balance check or cash withdraw can be done through voice input. Normal mode procedure is same as the existing ATM.
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...IAEME Publication
There is increasing acceptability of emotional intelligence as a major factor in personality assessment and effective human resource management. Emotional intelligence as the ability to build capacity, empathize, co-operate, motivate and develop others cannot be divorced from both effective performance and human resource management systems. The human person is crucial in defining organizational leadership and fortunes in terms of challenges and opportunities and walking across both multinational and bilateral relationships. The growing complexity of the business world requires a great deal of self-confidence, integrity, communication, conflict and diversity management to keep the global enterprise within the paths of productivity and sustainability. Using the exploratory research design and 255 participants the result of this original study indicates strong positive correlation between emotional intelligence and effective human resource management. The paper offers suggestions on further studies between emotional intelligence and human capital development and recommends for conflict management as an integral part of effective human resource management.
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMYIAEME Publication
Our life journey, in general, is closely defined by the way we understand the meaning of why we coexist and deal with its challenges. As we develop the "inspiration economy", we could say that nearly all of the challenges we have faced are opportunities that help us to discover the rest of our journey. In this note paper, we explore how being faced with the opportunity of being a close carer for an aging parent with dementia brought intangible discoveries that changed our insight of the meaning of the rest of our life journey.
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...IAEME Publication
The main objective of this study is to analyze the impact of aspects of Organizational Culture on the Effectiveness of the Performance Management System (PMS) in the Health Care Organization at Thanjavur. Organizational Culture and PMS play a crucial role in present-day organizations in achieving their objectives. PMS needs employees’ cooperation to achieve its intended objectives. Employees' cooperation depends upon the organization’s culture. The present study uses exploratory research to examine the relationship between the Organization's culture and the Effectiveness of the Performance Management System. The study uses a Structured Questionnaire to collect the primary data. For this study, Thirty-six non-clinical employees were selected from twelve randomly selected Health Care organizations at Thanjavur. Thirty-two fully completed questionnaires were received.
Living in 21st century in itself reminds all of us the necessity of police and its administration. As more and more we are entering into the modern society and culture, the more we require the services of the so called ‘Khaki Worthy’ men i.e., the police personnel. Whether we talk of Indian police or the other nation’s police, they all have the same recognition as they have in India. But as already mentioned, their services and requirements are different after the like 26th November, 2008 incidents, where they without saving their own lives has sacrificed themselves without any hitch and without caring about their respective family members and wards. In other words, they are like our heroes and mentors who can guide us from the darkness of fear, militancy, corruption and other dark sides of life and so on. Now the question arises, if Gandhi would have been alive today, what would have been his reaction/opinion to the police and its functioning? Would he have some thing different in his mind now what he had been in his mind before the partition or would he be going to start some Satyagraha in the form of some improvement in the functioning of the police administration? Really these questions or rather night mares can come to any one’s mind, when there is too much confusion is prevailing in our minds, when there is too much corruption in the society and when the polices working is also in the questioning because of one or the other case throughout the India. It is matter of great concern that we have to thing over our administration and our practical approach because the police personals are also like us, they are part and parcel of our society and among one of us, so why we all are pin pointing towards them.
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...IAEME Publication
The goal of this study was to see how talent management affected employee retention in the selected IT organizations in Chennai. The fundamental issue was the difficulty to attract, hire, and retain talented personnel who perform well and the gap between supply and demand of talent acquisition and retaining them within the firms. The study's main goals were to determine the impact of talent management on employee retention in IT companies in Chennai, investigate talent management strategies that IT companies could use to improve talent acquisition, performance management, career planning and formulate retention strategies that the IT firms could use. The respondents were given a structured close-ended questionnaire with the 5 Point Likert Scale as part of the study's quantitative research design. The target population consisted of 289 IT professionals. The questionnaires were distributed and collected by the researcher directly. The Statistical Package for Social Sciences (SPSS) was used to collect and analyse the questionnaire responses. Hypotheses that were formulated for the various areas of the study were tested using a variety of statistical tests. The key findings of the study suggested that talent management had an impact on employee retention. The studies also found that there is a clear link between the implementation of talent management and retention measures. Management should provide enough training and development for employees, clarify job responsibilities, provide adequate remuneration packages, and recognise employees for exceptional performance.
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...IAEME Publication
Globally, Millions of dollars were spent by the organizations for employing skilled Information Technology (IT) professionals. It is costly to replace unskilled employees with IT professionals possessing technical skills and competencies that aid in interconnecting the business processes. The organization’s employment tactics were forced to alter by globalization along with technological innovations as they consistently diminish to remain lean, outsource to concentrate on core competencies along with restructuring/reallocate personnel to gather efficiency. As other jobs, organizations or professions have become reasonably more appropriate in a shifting employment landscape, the above alterations trigger both involuntary as well as voluntary turnover. The employee view on jobs is also afflicted by the COVID-19 pandemic along with the employee-driven labour market. So, having effective strategies is necessary to tackle the withdrawal rate of employees. By associating Emotional Intelligence (EI) along with Talent Management (TM) in the IT industry, the rise in attrition rate was analyzed in this study. Only 303 respondents were collected out of 350 participants to whom questionnaires were distributed. From the employees of IT organizations located in Bangalore (India), the data were congregated. A simple random sampling methodology was employed to congregate data as of the respondents. Generating the hypothesis along with testing is eventuated. The effect of EI and TM along with regression analysis between TM and EI was analyzed. The outcomes indicated that employee and Organizational Performance (OP) were elevated by effective EI along with TM.
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...IAEME Publication
By implementing talent management strategy, organizations would have the option to retain their skilled professionals while additionally working on their overall performance. It is the course of appropriately utilizing the ideal individuals, setting them up for future top positions, exploring and dealing with their performance, and holding them back from leaving the organization. It is employee performance that determines the success of every organization. The firm quickly obtains an upper hand over its rivals in the event that its employees having particular skills that cannot be duplicated by the competitors. Thus, firms are centred on creating successful talent management practices and processes to deal with the unique human resources. Firms are additionally endeavouring to keep their top/key staff since on the off chance that they leave; the whole store of information leaves the firm's hands. The study's objective was to determine the impact of talent management on organizational performance among the selected IT organizations in Chennai. The study recommends that talent management limitedly affects performance. On the off chance that this talent is appropriately management and implemented properly, organizations might benefit as much as possible from their maintained assets to support development and productivity, both monetarily and non-monetarily.
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...IAEME Publication
Banking regulations act of India, 1949 defines banking as “acceptance of deposits for the purpose of lending or investment from the public, repayment on demand or otherwise and withdrawable through cheques, drafts order or otherwise”, the major participants of the Indian financial system are commercial banks, the financial institution encompassing term lending institutions. Investments institutions, specialized financial institution and the state level development banks, non banking financial companies (NBFC) and other market intermediaries such has the stock brokers and money lenders are among the oldest of the certain variants of NBFC and the oldest market participants. The asset quality of banks is one of the most important indicators of their financial health. The Indian banking sector has been facing severe problems of increasing Non- Performing Assets (NPAs). The NPAs growth directly and indirectly affects the quality of assets and profitability of banks. It also shows the efficiency of banks credit risk management and the recovery effectiveness. NPA do not generate any income, whereas, the bank is required to make provisions for such as assets that why is a double edge weapon. This paper outlines the concept of quality of bank loans of different types like Housing, Agriculture and MSME loans in state Haryana of selected public and private sector banks. This study is highlighting problems associated with the role of commercial bank in financing Small and Medium Scale Enterprises (SME). The overall objective of the research was to assess the effect of the financing provisions existing for the setting up and operations of MSMEs in the country and to generate recommendations for more robust financing mechanisms for successful operation of the MSMEs, in turn understanding the impact of MSME loans on financial institutions due to NPA. There are many research conducted on the topic of Non- Performing Assets (NPA) Management, concerning particular bank, comparative study of public and private banks etc. In this paper the researcher is considering the aggregate data of selected public sector and private sector banks and attempts to compare the NPA of Housing, Agriculture and MSME loans in state Haryana of public and private sector banks. The tools used in the study are average and Anova test and variance. The findings reveal that NPA is common problem for both public and private sector banks and is associated with all types of loans either that is housing loans, agriculture loans and loans to SMES. NPAs of both public and private sector banks show the increasing trend. In 2010-11 GNPA of public and private sector were at same level it was 2% but after 2010-11 it increased in many fold and at present there is GNPA in some more than 15%. It shows the dark area of Indian banking sector.
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...IAEME Publication
An experiment conducted in this study found that BaSO4 changed Nylon 6's mechanical properties. By changing the weight ratios, BaSO4 was used to make Nylon 6. This Researcher looked into how hard Nylon-6/BaSO4 composites are and how well they wear. Experiments were done based on Taguchi design L9. Nylon-6/BaSO4 composites can be tested for their hardness number using a Rockwell hardness testing apparatus. On Nylon/BaSO4, the wear behavior was measured by a wear monitor, pinon-disc friction by varying reinforcement, sliding speed, and sliding distance, and the microstructure of the crack surfaces was observed by SEM. This study provides significant contributions to ultimate strength by increasing BaSO4 content up to 16% in the composites, and sliding speed contributes 72.45% to the wear rate
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...IAEME Publication
The majority of the population in India lives in villages. The village is the back bone of the country. Village or rural industries play an important role in the national economy, particularly in the rural development. Developing the rural economy is one of the key indicators towards a country’s success. Whether it be the need to look after the welfare of the farmers or invest in rural infrastructure, Governments have to ensure that rural development isn’t compromised. The economic development of our country largely depends on the progress of rural areas and the standard of living of rural masses. Village or rural industries play an important role in the national economy, particularly in the rural development. Rural entrepreneurship is based on stimulating local entrepreneurial talent and the subsequent growth of indigenous enterprises. It recognizes opportunity in the rural areas and accelerates a unique blend of resources either inside or outside of agriculture. Rural entrepreneurship brings an economic value to the rural sector by creating new methods of production, new markets, new products and generate employment opportunities thereby ensuring continuous rural development. Social Entrepreneurship has the direct and primary objective of serving the society along with the earning profits. So, social entrepreneurship is different from the economic entrepreneurship as its basic objective is not to earn profits but for providing innovative solutions to meet the society needs which are not taken care by majority of the entrepreneurs as they are in the business for profit making as a sole objective. So, the Social Entrepreneurs have the huge growth potential particularly in the developing countries like India where we have huge societal disparities in terms of the financial positions of the population. Still 22 percent of the Indian population is below the poverty line and also there is disparity among the rural & urban population in terms of families living under BPL. 25.7 percent of the rural population & 13.7 percent of the urban population is under BPL which clearly shows the disparity of the poor people in the rural and urban areas. The need to develop social entrepreneurship in agriculture is dictated by a large number of social problems. Such problems include low living standards, unemployment, and social tension. The reasons that led to the emergence of the practice of social entrepreneurship are the above factors. The research problem lays upon disclosing the importance of role of social entrepreneurship in rural development of India. The paper the tendencies of social entrepreneurship in India, to present successful examples of such business for providing recommendations how to improve situation in rural areas in terms of social entrepreneurship development. Indian government has made some steps towards development of social enterprises, social entrepreneurship, and social in- novation, but a lot remains to be improved.
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...IAEME Publication
Distribution system is a critical link between the electric power distributor and the consumers. Most of the distribution networks commonly used by the electric utility is the radial distribution network. However in this type of network, it has technical issues such as enormous power losses which affect the quality of the supply. Nowadays, the introduction of Distributed Generation (DG) units in the system help improve and support the voltage profile of the network as well as the performance of the system components through power loss mitigation. In this study network reconfiguration was done using two meta-heuristic algorithms Particle Swarm Optimization and Gravitational Search Algorithm (PSO-GSA) to enhance power quality and voltage profile in the system when simultaneously applied with the DG units. Backward/Forward Sweep Method was used in the load flow analysis and simulated using the MATLAB program. Five cases were considered in the Reconfiguration based on the contribution of DG units. The proposed method was tested using IEEE 33 bus system. Based on the results, there was a voltage profile improvement in the system from 0.9038 p.u. to 0.9594 p.u.. The integration of DG in the network also reduced power losses from 210.98 kW to 69.3963 kW. Simulated results are drawn to show the performance of each case.
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...IAEME Publication
Manufacturing industries have witnessed an outburst in productivity. For productivity improvement manufacturing industries are taking various initiatives by using lean tools and techniques. However, in different manufacturing industries, frugal approach is applied in product design and services as a tool for improvement. Frugal approach contributed to prove less is more and seems indirectly contributing to improve productivity. Hence, there is need to understand status of frugal approach application in manufacturing industries. All manufacturing industries are trying hard and putting continuous efforts for competitive existence. For productivity improvements, manufacturing industries are coming up with different effective and efficient solutions in manufacturing processes and operations. To overcome current challenges, manufacturing industries have started using frugal approach in product design and services. For this study, methodology adopted with both primary and secondary sources of data. For primary source interview and observation technique is used and for secondary source review has done based on available literatures in website, printed magazines, manual etc. An attempt has made for understanding application of frugal approach with the study of manufacturing industry project. Manufacturing industry selected for this project study is Mahindra and Mahindra Ltd. This paper will help researcher to find the connections between the two concepts productivity improvement and frugal approach. This paper will help to understand significance of frugal approach for productivity improvement in manufacturing industry. This will also help to understand current scenario of frugal approach in manufacturing industry. In manufacturing industries various process are involved to deliver the final product. In the process of converting input in to output through manufacturing process productivity plays very critical role. Hence this study will help to evolve status of frugal approach in productivity improvement programme. The notion of frugal can be viewed as an approach towards productivity improvement in manufacturing industries.
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENTIAEME Publication
In this paper, we investigated a queuing model of fuzzy environment-based a multiple channel queuing model (M/M/C) ( /FCFS) and study its performance under realistic conditions. It applies a nonagonal fuzzy number to analyse the relevant performance of a multiple channel queuing model (M/M/C) ( /FCFS). Based on the sub interval average ranking method for nonagonal fuzzy number, we convert fuzzy number to crisp one. Numerical results reveal that the efficiency of this method. Intuitively, the fuzzy environment adapts well to a multiple channel queuing models (M/M/C) ( /FCFS) are very well.