Thermal analysis of cpu with variable baseplate heat sink using cfdeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Enhancement of Heat Transfer Analysis and Optimization of Engine Fins of Vary...ijtsrd
The Engine cylinder is one of the major automobile components, which is subjected to high temperature variations and thermal stresses. In order to cool the cylinder, fins are provided on the cylinder to increase the rate of heat transfer. By doing thermal analysis on the engine cylinder fins, it is helpful to know the heat dissipation inside the cylinder. The principle implemented in this project is to increase the heat dissipation rate by using the invisible working fluid, nothing but air. As know, by increasing the surface area we can increase the heat dissipation rate, so designing such a large complex engine is very difficult. The main purpose of using these cooling fins is to cool the engine cylinder by air. The main aim of the project is to analyse the thermal properties by varying geometry, material, distance between the fins and thickness of cylinder fins. Parametric models of cylinder with fins have been developed to predict the transient thermal behaviour. The models are created by varying the geometry circular and also by varying thickness of the fins for both geometries. The 3D modelling software used is Pro/Engineer. Thermal analysis is done on the cylinder fins to determine variation temperature distribution over time. The analysis is done using ANSYS. Thermal analysis determines temperatures and other thermal quantities. In this thesis, using materials cast iron, Copper and Aluminium alloy 6082 are also for cylinder fin body. Thermal analysis is done using all the three materials by changing geometries, distance between the fins and thickness of the fins for the actual model of the cylinder fin body. K. Karthikeyan | C. Saravanan | Dr. T. Senthil Kumar"Enhancement of Heat Transfer Analysis and Optimization of Engine Fins of Varying Geometry" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14327.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/14327/enhancement-of-heat-transfer-analysis-and-optimization-of-engine-fins-of-varying-geometry/k-karthikeyan
Thermal analysis of cpu with variable baseplate heat sink using cfdeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Enhancement of Heat Transfer Analysis and Optimization of Engine Fins of Vary...ijtsrd
The Engine cylinder is one of the major automobile components, which is subjected to high temperature variations and thermal stresses. In order to cool the cylinder, fins are provided on the cylinder to increase the rate of heat transfer. By doing thermal analysis on the engine cylinder fins, it is helpful to know the heat dissipation inside the cylinder. The principle implemented in this project is to increase the heat dissipation rate by using the invisible working fluid, nothing but air. As know, by increasing the surface area we can increase the heat dissipation rate, so designing such a large complex engine is very difficult. The main purpose of using these cooling fins is to cool the engine cylinder by air. The main aim of the project is to analyse the thermal properties by varying geometry, material, distance between the fins and thickness of cylinder fins. Parametric models of cylinder with fins have been developed to predict the transient thermal behaviour. The models are created by varying the geometry circular and also by varying thickness of the fins for both geometries. The 3D modelling software used is Pro/Engineer. Thermal analysis is done on the cylinder fins to determine variation temperature distribution over time. The analysis is done using ANSYS. Thermal analysis determines temperatures and other thermal quantities. In this thesis, using materials cast iron, Copper and Aluminium alloy 6082 are also for cylinder fin body. Thermal analysis is done using all the three materials by changing geometries, distance between the fins and thickness of the fins for the actual model of the cylinder fin body. K. Karthikeyan | C. Saravanan | Dr. T. Senthil Kumar"Enhancement of Heat Transfer Analysis and Optimization of Engine Fins of Varying Geometry" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14327.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/14327/enhancement-of-heat-transfer-analysis-and-optimization-of-engine-fins-of-varying-geometry/k-karthikeyan
Finite Element Simulation of Plasma Transferred ARC Welding [PTAW] of Structu...IJERA Editor
Plasma transferred Arc welding is one of the most widely used welding process, in which the metals are fused just above the melting point, and makes the metal to fuse. It is employed in many applications like tool die and metal casting, strip metal welding etc. This investigation is to analyze temperature distribution residual stress and distortion by varying the heat source parameter in SYSWELD, and compared the results with ANSYS. The simulation of Plasma Transferred Arc welding was of structural steel plate performed using a non-linear transient heat transfer analysis. Heat losses due to convection and variation of material properties with temperature were considered in this analysis. To incorporate the heat developed the Gaussian distribution was considered. Finite element simulations were performed using ANSYS Parametric Design Language (APDL) code and using SYSWELD. The temperatures obtained were compared with experimental results for validation. It was found that the predicted values of temperature agree very well with the experimental values. Residual Stress and Distortion were also predicted for various heat Input. The effect of heat input on residual stress and distortion was investigated.
Thermal analysis of cooling effect on gas turbine bladeeSAT Journals
Abstract Performance of a gas turbine is mainly depends on various parameters e.g. ambient temperature, compressor pressure ratio, turbine inlet temperature etc. The most important parameter to increase the life of the turbine blade is the cooling of the blade, which is necessary after reaching a certain temperature of the gases passing through the blades. Various types of cooling models are available for a turbine blade cooling. The power output of a gas turbine depends on the mass flow rate through it. This is precisely the reason why on hot days, when air is less dense, power output falls off. This paper is to analyze the film cooling technique that was developed to cool gases in the initial stages of the turbine blades, where temperature is very high (>1122 K). It is found that the thermal efficiency of a cooled gas turbine is less as compare to the uncooled gas turbine for the same input conditions. The reason is that the temperature at the inlet of the turbine is decreased due to cooling and the work produced by the turbine is slightly decreased. It is also found that the power consumption of the cool inlet air is of considerable concern since it decreases the net power output of gas turbine. In addition, net power decreases on increasing the overall pressure ratio. Furthermore, the reviewed works revealed that the efficiency of the cooled gas turbine largely depends on the inlet temperature of the turbine and previous research said that the temperature above 1123K, require cooling of the blade. Keywords: Gas turbine, Turbine blade cooling, film cooling technique, Thermal Efficiency
Effect of Different Fin Geometries on Heat Transfer Coefficientijtsrd
High rate of heat flow is the demand of number of engineering applications, heat exchangers used in process industries, economizers used to heat water to boiler or activities like cooling of IC engines. Also, the removal of heat from integral circuit or exchange of heat between two fluids as in nuclear power plants many researchers contributed in enhancement of heat transfer through various approaches. Increase in heat transfer rate and to derive is being done by using different techniques or by performing experiments as well previous literature mentioned the theory regarding heat transfer in such a way that it will increased by increasing area and heat transfer coefficient. In case of natural convection there is only scope for increasing heat transfer area, there extended surfaces i.e. fins are better option to it. Other advantage is increasing turbulence with pitch therefore it enhances heat transfer. Study of heat transfer is possible through numerical experimental analysis. In case of numerical analysis, the results give's heat flow pattern and but less accurate. Whereas experimental analysis gives accurate results but require set up, time and valid conditions. Rohit | Kuldeep "Effect of Different Fin Geometries on Heat Transfer Coefficient" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31613.pdf Paper Url :https://www.ijtsrd.com/engineering/mechanical-engineering/31613/effect-of-different-fin-geometries-on-heat-transfer-coefficient/rohit
Estimation of Cooling Load Calculations for a Commercial Complexijtsrd
In this project we discussed the cooling load calculations for a commercial building by using revit software Window air conditioners, split air conditioners are used in small buildings and offices etc but in big buildings and commercial complex we use central air conditioning systems this systems are installed far away from the buildings. The cooled air is supplied to the building with the help of ducts. When ducts are not properly designed, then it will lead to problem such as frictional loss, higher installation cost, increased noise and power consumption. For minimizing this problem, a proper design of duct is needed. Equal friction method is used to design the duct it gives the comparison of pressure drop in rectangular duct and circular duct. Central air conditioning is more reliable for easy operation with a lower maintenance cost. Cooling load items such as, people heat gain, lighting heat gain, infiltration and ventilation heat gain can easily by using REVIT SOFTWARE. The programme can also be used to calculate cooling load due to walls and roofs. And results were compared with the standard data given by ASHRAE and CARRIER. The RULE OF THUMB method is used to calculate the heat developed in the rooms. These methods are used for lower power consumption capital cost and improve aesthetics of building I. S. N. V. R. Prashanth | V. Nikitha | B. Aravind | N. Mahesh ""Estimation of Cooling Load Calculations for a Commercial Complex"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23322.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23322/estimation-of-cooling-load-calculations-for-a-commercial-complex/i-s-n-v-r-prashanth
Design and Analysis of Micro Steam Turbine Using Catia and Ansysijceronline
Micro turbines are becoming widely used for combined power generation and heat applications. Micro turbines have many advantages over piston generators such as low emissions less moving parts, accepts commercial fuels. Steam turbine cycle and operation of micro turbine was studied and reported. Different parts (Inlet. Storage, Nozzle, Rotor, coupling, outlet, clip, housing) of turbine are designed with the help of CATIA software. The turbine is of Axial input and axial output type. ANSYS is used for thermal analysis of a steam turbine and those results are extracted and following values are shown by applying known temperature when it is in working condition.
Air cooling effect of fins on a Honda shine bikeIJERA Editor
The main of aim of this work is to study various researches done in past to improve heat transfer rate of cooling fins by changing cylinder block fin geometry. Low rate of heat transfer through cooling fins is the main problem in this type of cooling. So efficiency of the engine is increase by increase the heat transfer. Examples of direct air cooling in modern automobiles are rare. The most common example is the commercials Automobile bike like a Honda Shine, Bajaj bike, Honda splendor etc. It is conclude about shape try to this fins is more effectively heat transfer in Honda shine bike compare to existing fins. After FEA Analysis it checking on fin whether efficiency of heat transfer increases or not. This work validation with Experimental and Mathematical.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Application of Pinch Technology in Refrigerator Condenser Optimization by Usi...ijtsrd
Refrigeration is the major application area of thermodynamics, in which the heat is transferred to higher temperature region from a lower temperature region. Refrigerators are the devices which produce refrigeration and the refrigerators which operate on the cycles are called refrigeration cycles. Pinch technology and computational fluid dynamics CFD is key for study the condenser and enhance the better option for new design. Pinch Analysis also known as process integration, heat integration, energy integration, or pinch technology is method for minimizing the energy costs of a process by reusing the heat energy in the process streams rather than outside utilities. Mr. Mayur B. Ramteke | Prof. S. K. Bawne "Application of Pinch Technology in Refrigerator Condenser Optimization by Using CFD" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd46440.pdf Paper URL : https://www.ijtsrd.com/engineering/mechanical-engineering/46440/application-of-pinch-technology-in-refrigerator-condenser-optimization-by-using-cfd/mr-mayur-b-ramteke
1 ijebm jan-2018-1-combustion adjustment in a naturalAI Publications
Shortage of detailed and accurate experimental data on fuel-air mixing in furnaces is due to the difficulty and complexity of measurements in flames. Although it may be possible with infra-Red camera to obtain an indication of what happens in the furnace by graphical image resolution this is not expected to be sufficiently detailed because it contains only the temperature gradient. More detailed information, however, may be obtained from the simulated resolution using Computational Fluid Dynamics (CFD) technique where the total number of elements/points defines the detailed level that can be displayed or captured in graphical image. Simulation resolution studies two aspects of the momentum effects on flame which are the forward momentum normally associated with the average outlet velocity of the combustion products and the lateral momentum caused by swirl. Following the American Petroleum Institute guidelines (API 560) for combustion adjustment in furnaces, it may be possible to have less emission and a maximum efficiency, but the potential interaction between the several operation and design factors are not thereby considered as in a mathematical model of CFD.
Selection of Material for Improving Heat Transfer Rate for Fins using CFDijtsrd
Fins are the extended surface jutting from a surface or body and which they are meant for increasing the heat transfer rate between the surfaces by increasing area for heat transfer. Heat flow in a system depends on three factors 1 area of the surface 2 temperature distinction and 3 the convective heat transfer coefficient. Rate of heat transfer can be magnified by enhancing any one of these factors. Out of these, the bottom surface area is restricted attributable to the design of the object temperature distinction depends on process and having process limitations. The sole alternative seems to be the convection heat transfer constant and this may not be magnified on the far side a certain worth. Therefore the potential choice is to extend the base surface area by the extended surfaces additionally called fins. Fins are therefore used whenever the obtainable surface area is found inadequate to transfer needed amount of heat with obtainable temperature gradient and heat transfer coefficient. In the case of fins the direction of heat transfer by convection is perpendicular to the direction of conduction heat flow. Present research work is devoted to the investigations of better fin material for an internal combustion engine. For this investigation help of simulation approach is being taken. Preceding in the direction of research, first of all a model of existing internal combustion engine was prepared. In next stage, along with existing material Al204 different materials, aluminnium alloy 7075, magnesium and beryllium, were also introduced in the model and thermal analysis was done on popular software ANSYS 15.0, under which three parameters were investigated, heat flux, directional heat flux and average temperature. Following are the details of conclusion drawn. 1. Beryllium shows itself most suitable material for the internal combustion fin application 2. Aluminum 7075 shows itself second most suitable material for the internal combustion fin application and 3. Aluminum 204 shows itself worst material for the internal combustion fin application. Abhishek Kumar | Shreeram Barkhane "Selection of Material for Improving Heat Transfer Rate for Fins using CFD" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29519.pdfPaper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/29519/selection-of-material-for-improving-heat-transfer-rate-for-fins-using-cfd/abhishek-kumar
STUDY OF THERMAL MAPPING FOR HEALTH MONITORING OF GAS TURBINE BLADEIJRISE Journal
Thermal mapping for health monitoring of gas turbine is essential as modern day gas turbine subjected to very
high temperature applications, gas turbines are used extensively for aircraft propulsion, land -based power
generation, and industrial applications. Developments in turbine cooling technology play a critical role in
increasing the thermal efficiency and power output of advanced gas turbines. Gas turbine blades are cooled
internally by passing the coolant through several rib-enhanced Some tine passages to remove heat conducted
from the outside surface. External cooling of turbine blades by film cooling is achieved by injecting relatively
cooler air from the internal coolant passages out of the blade surface in order to form a protective layer between
the blade surface and hot gas-path flow. For health monitoring of gas turbine blade, this presentation focuses on
the effect of critical zone and hot spot along temperature distribution by using thermal paint. The comp utational
flow and heat transfer results are also presented. This presentation includes unsteady high free -stream
turbulence effects on film cooling performance with a discussion of detailed heat transfer coefficient and filmcooling
effectiveness distributions for standard and shaped film-hole geometry using the newly developed
transient liquid crystal image method.
Finite Element Simulation of Plasma Transferred ARC Welding [PTAW] of Structu...IJERA Editor
Plasma transferred Arc welding is one of the most widely used welding process, in which the metals are fused just above the melting point, and makes the metal to fuse. It is employed in many applications like tool die and metal casting, strip metal welding etc. This investigation is to analyze temperature distribution residual stress and distortion by varying the heat source parameter in SYSWELD, and compared the results with ANSYS. The simulation of Plasma Transferred Arc welding was of structural steel plate performed using a non-linear transient heat transfer analysis. Heat losses due to convection and variation of material properties with temperature were considered in this analysis. To incorporate the heat developed the Gaussian distribution was considered. Finite element simulations were performed using ANSYS Parametric Design Language (APDL) code and using SYSWELD. The temperatures obtained were compared with experimental results for validation. It was found that the predicted values of temperature agree very well with the experimental values. Residual Stress and Distortion were also predicted for various heat Input. The effect of heat input on residual stress and distortion was investigated.
Thermal analysis of cooling effect on gas turbine bladeeSAT Journals
Abstract Performance of a gas turbine is mainly depends on various parameters e.g. ambient temperature, compressor pressure ratio, turbine inlet temperature etc. The most important parameter to increase the life of the turbine blade is the cooling of the blade, which is necessary after reaching a certain temperature of the gases passing through the blades. Various types of cooling models are available for a turbine blade cooling. The power output of a gas turbine depends on the mass flow rate through it. This is precisely the reason why on hot days, when air is less dense, power output falls off. This paper is to analyze the film cooling technique that was developed to cool gases in the initial stages of the turbine blades, where temperature is very high (>1122 K). It is found that the thermal efficiency of a cooled gas turbine is less as compare to the uncooled gas turbine for the same input conditions. The reason is that the temperature at the inlet of the turbine is decreased due to cooling and the work produced by the turbine is slightly decreased. It is also found that the power consumption of the cool inlet air is of considerable concern since it decreases the net power output of gas turbine. In addition, net power decreases on increasing the overall pressure ratio. Furthermore, the reviewed works revealed that the efficiency of the cooled gas turbine largely depends on the inlet temperature of the turbine and previous research said that the temperature above 1123K, require cooling of the blade. Keywords: Gas turbine, Turbine blade cooling, film cooling technique, Thermal Efficiency
Effect of Different Fin Geometries on Heat Transfer Coefficientijtsrd
High rate of heat flow is the demand of number of engineering applications, heat exchangers used in process industries, economizers used to heat water to boiler or activities like cooling of IC engines. Also, the removal of heat from integral circuit or exchange of heat between two fluids as in nuclear power plants many researchers contributed in enhancement of heat transfer through various approaches. Increase in heat transfer rate and to derive is being done by using different techniques or by performing experiments as well previous literature mentioned the theory regarding heat transfer in such a way that it will increased by increasing area and heat transfer coefficient. In case of natural convection there is only scope for increasing heat transfer area, there extended surfaces i.e. fins are better option to it. Other advantage is increasing turbulence with pitch therefore it enhances heat transfer. Study of heat transfer is possible through numerical experimental analysis. In case of numerical analysis, the results give's heat flow pattern and but less accurate. Whereas experimental analysis gives accurate results but require set up, time and valid conditions. Rohit | Kuldeep "Effect of Different Fin Geometries on Heat Transfer Coefficient" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31613.pdf Paper Url :https://www.ijtsrd.com/engineering/mechanical-engineering/31613/effect-of-different-fin-geometries-on-heat-transfer-coefficient/rohit
Estimation of Cooling Load Calculations for a Commercial Complexijtsrd
In this project we discussed the cooling load calculations for a commercial building by using revit software Window air conditioners, split air conditioners are used in small buildings and offices etc but in big buildings and commercial complex we use central air conditioning systems this systems are installed far away from the buildings. The cooled air is supplied to the building with the help of ducts. When ducts are not properly designed, then it will lead to problem such as frictional loss, higher installation cost, increased noise and power consumption. For minimizing this problem, a proper design of duct is needed. Equal friction method is used to design the duct it gives the comparison of pressure drop in rectangular duct and circular duct. Central air conditioning is more reliable for easy operation with a lower maintenance cost. Cooling load items such as, people heat gain, lighting heat gain, infiltration and ventilation heat gain can easily by using REVIT SOFTWARE. The programme can also be used to calculate cooling load due to walls and roofs. And results were compared with the standard data given by ASHRAE and CARRIER. The RULE OF THUMB method is used to calculate the heat developed in the rooms. These methods are used for lower power consumption capital cost and improve aesthetics of building I. S. N. V. R. Prashanth | V. Nikitha | B. Aravind | N. Mahesh ""Estimation of Cooling Load Calculations for a Commercial Complex"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23322.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23322/estimation-of-cooling-load-calculations-for-a-commercial-complex/i-s-n-v-r-prashanth
Design and Analysis of Micro Steam Turbine Using Catia and Ansysijceronline
Micro turbines are becoming widely used for combined power generation and heat applications. Micro turbines have many advantages over piston generators such as low emissions less moving parts, accepts commercial fuels. Steam turbine cycle and operation of micro turbine was studied and reported. Different parts (Inlet. Storage, Nozzle, Rotor, coupling, outlet, clip, housing) of turbine are designed with the help of CATIA software. The turbine is of Axial input and axial output type. ANSYS is used for thermal analysis of a steam turbine and those results are extracted and following values are shown by applying known temperature when it is in working condition.
Air cooling effect of fins on a Honda shine bikeIJERA Editor
The main of aim of this work is to study various researches done in past to improve heat transfer rate of cooling fins by changing cylinder block fin geometry. Low rate of heat transfer through cooling fins is the main problem in this type of cooling. So efficiency of the engine is increase by increase the heat transfer. Examples of direct air cooling in modern automobiles are rare. The most common example is the commercials Automobile bike like a Honda Shine, Bajaj bike, Honda splendor etc. It is conclude about shape try to this fins is more effectively heat transfer in Honda shine bike compare to existing fins. After FEA Analysis it checking on fin whether efficiency of heat transfer increases or not. This work validation with Experimental and Mathematical.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Application of Pinch Technology in Refrigerator Condenser Optimization by Usi...ijtsrd
Refrigeration is the major application area of thermodynamics, in which the heat is transferred to higher temperature region from a lower temperature region. Refrigerators are the devices which produce refrigeration and the refrigerators which operate on the cycles are called refrigeration cycles. Pinch technology and computational fluid dynamics CFD is key for study the condenser and enhance the better option for new design. Pinch Analysis also known as process integration, heat integration, energy integration, or pinch technology is method for minimizing the energy costs of a process by reusing the heat energy in the process streams rather than outside utilities. Mr. Mayur B. Ramteke | Prof. S. K. Bawne "Application of Pinch Technology in Refrigerator Condenser Optimization by Using CFD" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd46440.pdf Paper URL : https://www.ijtsrd.com/engineering/mechanical-engineering/46440/application-of-pinch-technology-in-refrigerator-condenser-optimization-by-using-cfd/mr-mayur-b-ramteke
1 ijebm jan-2018-1-combustion adjustment in a naturalAI Publications
Shortage of detailed and accurate experimental data on fuel-air mixing in furnaces is due to the difficulty and complexity of measurements in flames. Although it may be possible with infra-Red camera to obtain an indication of what happens in the furnace by graphical image resolution this is not expected to be sufficiently detailed because it contains only the temperature gradient. More detailed information, however, may be obtained from the simulated resolution using Computational Fluid Dynamics (CFD) technique where the total number of elements/points defines the detailed level that can be displayed or captured in graphical image. Simulation resolution studies two aspects of the momentum effects on flame which are the forward momentum normally associated with the average outlet velocity of the combustion products and the lateral momentum caused by swirl. Following the American Petroleum Institute guidelines (API 560) for combustion adjustment in furnaces, it may be possible to have less emission and a maximum efficiency, but the potential interaction between the several operation and design factors are not thereby considered as in a mathematical model of CFD.
Selection of Material for Improving Heat Transfer Rate for Fins using CFDijtsrd
Fins are the extended surface jutting from a surface or body and which they are meant for increasing the heat transfer rate between the surfaces by increasing area for heat transfer. Heat flow in a system depends on three factors 1 area of the surface 2 temperature distinction and 3 the convective heat transfer coefficient. Rate of heat transfer can be magnified by enhancing any one of these factors. Out of these, the bottom surface area is restricted attributable to the design of the object temperature distinction depends on process and having process limitations. The sole alternative seems to be the convection heat transfer constant and this may not be magnified on the far side a certain worth. Therefore the potential choice is to extend the base surface area by the extended surfaces additionally called fins. Fins are therefore used whenever the obtainable surface area is found inadequate to transfer needed amount of heat with obtainable temperature gradient and heat transfer coefficient. In the case of fins the direction of heat transfer by convection is perpendicular to the direction of conduction heat flow. Present research work is devoted to the investigations of better fin material for an internal combustion engine. For this investigation help of simulation approach is being taken. Preceding in the direction of research, first of all a model of existing internal combustion engine was prepared. In next stage, along with existing material Al204 different materials, aluminnium alloy 7075, magnesium and beryllium, were also introduced in the model and thermal analysis was done on popular software ANSYS 15.0, under which three parameters were investigated, heat flux, directional heat flux and average temperature. Following are the details of conclusion drawn. 1. Beryllium shows itself most suitable material for the internal combustion fin application 2. Aluminum 7075 shows itself second most suitable material for the internal combustion fin application and 3. Aluminum 204 shows itself worst material for the internal combustion fin application. Abhishek Kumar | Shreeram Barkhane "Selection of Material for Improving Heat Transfer Rate for Fins using CFD" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29519.pdfPaper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/29519/selection-of-material-for-improving-heat-transfer-rate-for-fins-using-cfd/abhishek-kumar
STUDY OF THERMAL MAPPING FOR HEALTH MONITORING OF GAS TURBINE BLADEIJRISE Journal
Thermal mapping for health monitoring of gas turbine is essential as modern day gas turbine subjected to very
high temperature applications, gas turbines are used extensively for aircraft propulsion, land -based power
generation, and industrial applications. Developments in turbine cooling technology play a critical role in
increasing the thermal efficiency and power output of advanced gas turbines. Gas turbine blades are cooled
internally by passing the coolant through several rib-enhanced Some tine passages to remove heat conducted
from the outside surface. External cooling of turbine blades by film cooling is achieved by injecting relatively
cooler air from the internal coolant passages out of the blade surface in order to form a protective layer between
the blade surface and hot gas-path flow. For health monitoring of gas turbine blade, this presentation focuses on
the effect of critical zone and hot spot along temperature distribution by using thermal paint. The comp utational
flow and heat transfer results are also presented. This presentation includes unsteady high free -stream
turbulence effects on film cooling performance with a discussion of detailed heat transfer coefficient and filmcooling
effectiveness distributions for standard and shaped film-hole geometry using the newly developed
transient liquid crystal image method.
This paper deals with a new technology by which water can be used as a fuel. Price of Petroleum oils
are increases day-by-day, affecting the lifestyle of common people as well as the national economy. Hence it is
necessary to have alternative for petroleum oil. Water can be used as a fuel in the form of Brown’s Gas, so we
have a plan to produce a Generator which works on Brown’s Gas which is obtained by the electrolysis of water. It
will be a unique type of Generator so it has huge market potential. Now–a-days every country spends a lot of
money on research and development on non-conventional energy resources. In world, the conventional energy
sources are limited and their consumption is very high, so alternative sources of energy have tremendous
potential in future. Nobody will think for a moment but it is reality that water can be used as electricity producing
agent, and hence as an energy resources. It is good news for environmentalists as It is made from water,
depending upon the set-up; it burns into combustion engine and releases oxygen into atmosphere. This method
increases the oxygen content in the atmosphere, which helps to solve environment degradation. Hence, this new
successful technology can be called as Green technology. Since Electricity is one of the important energy
resources. It is available at very limited places and consumption is much more. This causes war for electricity
which is not new for civilization but by this technology war can be overcome or may be ended soo n
The Automobile industry is one of the most important heavy industries in the world. Countless companies rely
on the luxurious life and people around the world with the speed that can only be achieved by Automobile and which is
depending upon Petroleum. As petroleum product is decreasing day-by-day it is necessary to find an alternate fuel so
that luxuriousness can be continued. The success of the Automobile Industry depends on various factors ranging from
Fuel, less weight, Feasibility Low maintenance Eco-friendly and Comfort. Now a day there is a huge shortage of
petroleum products in the market due to its excess use. So in future there is a day to come when we will have the vehicles
but no fuels to run it. So this is a completely new idea to run a Car without any fuel. Moreover this will be the first car
which will give more than 90% efficiency. This idea is going to be a complete solution for the fuel crises and
environmental pollution in upcoming future. Even The idea used in this Car is also more efficient than the latest
technology of FUEL CELL being used in the modern cars. Since this Car can run with the help of two different types of
fuel hence its name hybrid fuel. This paper shows how the modern luxurious life with Automobile can be independent
from the petroleum Oil. This paper also deals with the technical feasibility of the use of Solar Energy with the help of
Battery as a fuels in Car. This paper reports the results of the theoretical characterization of different fuels with respect
to Hybrid fuel.
The quest for an engine to increase mileage has started before many years. Many automobile
manufacturing industries are doing more research on how to increase mileage of vehicle. In today’s
automobile competition every manufacturer is focusing on weight reduction of vehicle by considering
this objective, this paper focuses on providing alternative material. The objective of the present work is
to optimize weight reduction to increase mileage of vehicle. Saving grams at different parts in a car
helps us in saving some kilograms at the end of the design. Also the main material like polyimide for
automobile component manufacturing can be the best alternative solution in all respect. The focus of
this paper is on weight reduction of master cylinder. For modeling and analysis PRO-E and ANSYS is
used. The results obtained are comparatively better than existing materials and polyimide can be the
alternative solution for automotive component.
Stealth aircrafts are aircraft that use stealth technology to avoid detection by employing a combination of
features to interfere with radar as well as reduce visibility in the infrared visual, audio, and radio frequency (RF)
spectrum. While no aircraft is totally invisible to radar, stealth aircraft prevent conventional radar from detecting
or tracking the aircraft effectively, reducing the odds of a successful attack. Stealth is the combination of passive
low observable (LO) features and active emitters such as Low Probability of Intercept Radars, radios and laser
designators. These are usually combined with active defenses such as chaff, flares, and ECM. Stealth refers to
the act of trying to hide or evade detection, For airplanes, stealth first meant hiding from radar. It is not so much
a technology as a concept that incorporates a broad series of technologies and design features. This paper shows
the development of stealthy airplanes which teaches several important lessons about technology. The first is that
often many different technologies like Nano-Technology with Aerodynamics must be combined to achieve a
desired outcome. An advance in one field, such as materials or aerodynamics, must be accompanied by advances
in other fields, such as computing, constructing or electromagnetic theory. The second lesson is that sometimes
trial and error techniques are insufficient and advances in mathematical theory are necessary in order to achieve
significant advances. Finally, stealth teaches the lesson that technology is never static - a "stealth breakthrough"
may only last for a few years before an adversary finds a means of countering it. So this paper deals with how to
handle the Stealth. This paper also shows how and where to use Nano-Technology.
HOME AUTOMATION SYSTEM VIA INTERNET USING ANDROID PHONE IJRISE Journal
This paper presents a low cost, flexible and standalone home devices control and monitoring system using an embedded arduino micro-web server, with real IP connectivity for accessing and controlling devices and appliances remotely using Android based Smart phone app running on android platform. The proposed system does not require a dedicated server PC with respect to similar systems and offers a novel communication protocol to monitor and control the home environment. Devices such as light switches, temperature sensors, humidity sensors, current sensors, smoke/gas sensors and sirens have been integrated in the system to demonstrate the feasibility and effectiveness of the proposed smart home system.
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.
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.
Analysis and Design Methodology for Thermoelectric Power Generation System fr...Omkar Kamodkar
This paper combines heat transfer and
thermoelectric conversion techniques to create a
thermoelectric generator device for a single-cylinder, fourstroke petrol engine. The system is made up of heat absorbers,
thermoelectric generator, Thermoelectric Generator (TEG)
modules, and an external heat sink. To achieve the goal of
absorbing heat and increasing thermoelectric conversion
efficiently, the heat exchanger surface area and heat-exchange
time could be increased. Thermoelectric generators convert
waste heat into energy directly. This technology will also help
energy conversion systems work better overall. Despite the
fact that TEG production is limited by available technologies,
feasible electricity generation is possible from waste heat
generated by automobiles. The effect of using passive heat
sinks and heat absorbers made of a flat plate with fins of
various cross-sectional areas and materials with forced
convection heat transfer, as well as how current, voltage, and
power are varied, is investigated and presented in tabular
format in the current numerical analysis. By plotting the
results of the analytical and numerical method on relevant
graph, the results of both methods were compared
Transient Thermal Analysis for Heat Dissipation from Engine Cylinder Block wi...ijtsrd
The cost of fuel and materials in all sectors is rising day by day. In the IC engine, the engine fails primarily because the heat transfer from the cylinder wall to the ambient air is inadequate. Heat is derived from the cylinder wall in the engine by means of convection heat transfer through the fins. In this study, a 3 dimensional numerical 3 D transient thermal state simulation was used to investigate the heat dissipation of the engine cylinder fin with holes of different shapes hexagonal and an elliptical . ANSYS 17.0 simulation software was used to research the physiognomy of the heat transfer physiognomies of an engine cylinder fin with and without hole. The results indicate that, the fin with an elliptic hole attain a temperature of 797.94 °C at 14 seconds in comparison to other where with hexagonal hole 798.02 °C, and without hole 798.14°C. So above values clearly shows that fin with an elliptic hole dissipates more heat as compare to fin with hexagonal hole or without hole. Fin with an elliptic hole have a total heat flux of 56122 W m² comparison to other where with hexagonal hole 49967 W m², and without hole 46704 W m². From the above results it is clearly shows that, the new proposed shape fin or fin configuration will greatly improve the heat transfer rate and increase the fin efficiency. Optimum results are obtained when we provide an elliptic hole in an engine cylinder fin Sunil Kumar Bharti | Prof. Rohit Soni "Transient Thermal Analysis for Heat Dissipation from Engine Cylinder Block with Different Shaped Holes in Fins using CFD" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, URL: https://www.ijtsrd.com/papers/ijtsrd35736.pdf Paper Url: https://www.ijtsrd.com/engineering/mechanical-engineering/35736/transient-thermal-analysis-for-heat-dissipation-from-engine-cylinder-block-with-different-shaped-holes-in-fins-using-cfd/sunil-kumar-bharti
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
1. International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
STUDY OF THERMAL MAPPING FOR HEALTH MONITORING OF
GAS TURBINE BLADE
Pankaj S. Mandavkar1
, Suraj M. Surjuse2
Rishabh D. Sawane3
Deepa G. Dongre4
1
Jawaharlal darda institute of engineering. and technology, pankajmandavkar5@gmail.com
2
Jawaharlal darda institute of engineering. and technology, surajsurjuse111@gmail.com
3
, Jawaharlal darda institute of engineering. and technology, rishsawane71@gmail.com
41
Student, Jawaharlal darda institute of engineering. and technology, ddongre83@gmail.com
ABSTRACT
Thermal mapping for health monitoring of gas turbine is essential as modern day gas turbine subjected to very
high temperature applications, gas turbines are used extensively for aircraft propulsion, land-based power
generation, and industrial applications. Developments in turbine cooling technology play a critical role in
increasing the thermal efficiency and power output of advanced gas turbines. Gas turbine blades are cooled
internally by passing the coolant through several rib-enhanced Some tine passages to remove heat conducted
from the outside surface. External cooling of turbine blades by film cooling is achieved by injecting relatively
cooler air from the internal coolant passages out of the blade surface in order to form a protective layer between
the blade surface and hot gas-path flow. For health monitoring of gas turbine blade, this presentation focuses on
the effect of critical zone and hot spot along temperature distribution by using thermal paint. The comp utational
flow and heat transfer results are also presented. This presentation includes unsteady high free-stream
turbulence effects on film cooling performance with a discussion of detailed heat transfer coefficient and film-
cooling effectiveness distributions for standard and shaped film-hole geometry using the newly developed
transient liquid crystal image method.
Keywords: Thermal mapping, Blade internal cooling, Rotational effect, Film cooling,
-----------------------------------------------------------------------------------------------------------------------------
1. INTRODUCTION
The project is mainly based on thermal mapping and cooling of G.T. blades. Modern day turbine are designed to
run at well in excess current metal temperature limit Thermal mapping is going to be done by using thermal paint, it
gives temperature distribution across blades also detection of hot spot and critical zone. The G.T. blades exposed to
high temperature flue gases, many advance material proposed still not able to sustain it. So blades may fail and
deform that adversely affect the efficiency. The main motive of this project is to proposed effective cooling
technique to maintain proper health of Gas turbine blade. Investigation of advanced thermal mapping technique
Proposal for enhancement of cooling of G.T.blade. Investigation of rapid prototyping technique as advanced tool for
manufacturing of G.T. blade.
Prototypes of turbine blade are manufactured using rapid prototyping technology to analyze the temperature
distribution over their surface It is essential that the surface on which the paint is to be applied should be perfectly
clean and free from rust and oil stains. Presence of even a minute oil trace or rust results in peeling of the paints at
2. International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
elevated temperatures. The component surface is properly prepared before application of the paints. A very thin
layer of the paint just barely enough to cover the metal surface is applied using a spray gun with air pressure of 30-
50 psig. The painted blades are air dried for about one hour and are further cured by heating themin the laboratory
furnace up to 3000C for 2 hours. Curing is carried out to strengthen the thermal paint bond with the metal surface
avoiding debonding (fusing) at elevated temperatures. After completion of the curing cycle the components are
allowed to cool down in the furnace itself. Withdrawal of the components fromthe hot furnace and sudden exposure
to room temperature weakens the paint bond due to thermal shock multiple-line equations, the number should be
given on the last line. The gas turbine blade with internal cooling hole is designed by using CATIA V. 5 the
designed geometry is converted into stl. Format for manufacturing by using rapid prototyping. Then these blade are
exposed to hot gases with thermal paint applied on it. As blade subjected to high temperature gases temperature
distribution along blade determined by using changes in color of thermal paint. Also by using CFD tools various
analysis performed to evaluate cooling improvement in blade due to internal holes.
2. Cad modeling of gas turbine blade
CAD modelling of gas turbine blade is an important part of entire project. Because the blade profile is very Complex
and it will decide the nature of the hot flowing fluid inside and over a blade. The advanced CAD software i.e.
CATIA V5 is selected for modelling the gas turbine blade. The blades consist of different internal passages for
cooling of blade. The cad model with CATIA gives accurate surfaces with correct internal cooling geometry. The
exterior surface of gas turbine blade as shown in fallowing figure.
3. International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
Another figure shows cut section of gas turbine blade, the internal cooling passages are provided to check how it
will improve cooling of blade as compressed air passing through the holes and produces filmalong internal surface
to increase cooling efficiently so it can exposed to high temperature to achieve higher output without damage to
blade.
Fig. 2 Gas turbine blade cooling schematic (a) External cooling (b) Internal cooling
The blades cooling various internal and external cooling techniques are employed to bring down the temperature of
the blade material below its melting point. As shown in Fig. 1.14. In internal cooling, relatively cold air is bypassed
from the compressor and passed through the hollow passages inside the turbine blade.
3. EXPERIMENTAL SET UP
4. International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
The experimental set up constitutes of a fixture to hold the gas turbine blade. The gas turbine blade with internal
cooling holes are painted with the thermal paint after proper surface treatment and fixed in the fixture. Hot
compressed air through an LPG flame ignited through a nozzle fitted on a hand heater gun is allowed to impinge on
the blade surface. The intensity of the hot air flow can be controlled by a regulating knob fitted on the gun holder.
The component is heated for a predefined fixed heating time. It should be seen that the gun is properly fitted in its
fixture so that the hot air is properly impinged in the required area. The component fixture is an oscillatory table
which can oscillate the mounted components about a vertical axis so that the required surface area of the component
can be exposed. A digital camera is mounted in position to capture the images of the thermal contours.
Fig: Painted Components
Fig: Heated Components
The blade with application of thermal paint gives various temperature zone and distribution. That compare with
blade without internal cooling holes. The component is heated for a fixed time exposing it to the elevated
temperatures. As soon as the component starts heating the applied paint changes its color generating a contour of
various colors embedded within with each color representing its respective temperature attained. The image of the
thermal contour obtained is grabbed and given as an input to the Digital Image Processing algorithm which is
developed for the Automatic Interpretation of the thermal paint data. The component is illuminated by a Xenon light
source to avoid the unnecessary reflections and capture the true color profiles. The thermal paint is calibrated by
heating it at an interval of 150C and a calibration database file is generated which contains the various color profiles
associated with their respective temperatures. The algorithm analyzes the image pixel wise and assigns every pixel
with its corresponding temperature value by comparing it with the calibrated data thus generating a detailed and
reliable thermal map of the components.
The gas turbine blade with cooling passage with thermal paint will gives temperature distribution and
hot spot. As shown in figure.
5. International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
Above figure shows typical temperature distribution of gas turbine blade. Different color profile on blade specifies
different temperature range as given below.
The red section shows very high temperature in this portion also chances of blade failure more .the yellow portion
shows less temperature as compare with red portion. The green and blue portion exposed to lesser temperature. If
the internal cooling holes provide in the blade design it will increase cooling rate as compressed air passes through
these hole so that health of gas turbine will be monitored and maintained.
4. CONCLUSIONS
The thermal paint is a effective method of thermal mapping and internal holes in geometry of blade will be more
effective in gas turbine blades subjected to very high temperatures. Data acquired is of very high quality and does
not suffer from the dispersion due to thermal conduction in regions of high thermal gradients (such as those near
holes). Film cooling involves the measurement two parameters – film cooling effectiveness and heat transfer
coefficients (h). An attractive area for future research in gas turbine blade cooling. Investigations in the future could
focus on the effect of velocity, temperature and turbulence profiles exiting the combustion chamber on film cooling
of surface and end-walls of the first high pressure vane. Transfer analogy. A vast reliable database of results
detailing heat distribution on gas turbine blade.
ACKNOWLEDGMENTS
1. We avail this opportunity to express our deep sense of gratitude & whole hearted thanks to our Dr. S. V.
Bhalerao & Prof. B.E. Gajhbhiye for giving his valuable guidance, inspiration & affectionate encouragement for
this paper.
2. We also acknowledge our overwhelming gratitude & immense respect to our Dr. A. B. Borade, H.O.D. of
Mechanical Department & other staff members who inspired us a lot to achieve the highest goal.
3.Last but not the list we would like to thanks to all our friends who helped us directly or indirectly in our
endeavor & infused their help for the success of these paper.
6. International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
REFERENCES
[1] J. Kubiak , G. Urquiza, J.A. Rodriguez, G. González, I. Rosales, G. Castillo, J. Nebradt, “Failure analysis of the
150MW gas turbine blades” State University of Morelos, Centro de Investigación en Ingeniería y Ciencias
Aplicadas, CIICAp, Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, Mexico,Accepted 12
August 2008, Available online 29 August 2008, Sciencedirect.
[2] S.E. MoussaviTorshizi, S.M. Yadavar Nikravesh, A. Jahangiri, “Failure analysis of gas turbine generator
cooling fan blades”,PWUTPower and Water University of Technology,P.O. Box 16765-1719, Tehran, Iran,
Available online 24 December 2008, Sciencedirect.
[3] M. Sujata, M. Madan, K. Raghavendra, M.A. Venkataswamy, S.K. Bhaumik, “Identification of failure
mechanisms in nickel base superalloy turbine blades through microstructural study”,Failure Analysis & Accident
Investigation Group, Materials Science Division, National Aerospace Laboratories, Council of Scientific and
Industrial Research (CSIR), Bangalore 560 017, India, Available
online 26 May 2010, Sciencedirect.
[4] Kyung Min Kim, Jun Su Park, Dong Hyun Lee, Tack Woon Lee, Hyung Hee Cho, “Analysis of conjugated heat
transfer, stress and failure in a gas turbine blade with circular cooling passages”,Department of Mechanical
Engineering, Yonsei University, Seoul 120- 749, Republic of Korea, Accepted 1 March 2011, Available online 8
March 2011, Sciencedirect.
[5] S. Kargarnejad, F. Djavanroodi, “Failure assessment ofNimonic 80A gas turbine blade”, Department of
Mechanical Engineering, Urmia University of Technology,Urmia, Iran, Accepted 28 May 2012, Available online
30 August 2012, Sciencedirect.
[6] M. O. Dedekind and L. E. Harris, “Evaluation of premature failure of a gas turbine component”, International
Journal Pres. Ves and piping 66, Elseveir Science Limited, 1996.
[7] J. M. Gallardo, J. A. Rodriguez, and E. J. Herrera “Failure of gas turbine blades” WEAR, Elsevier, 2002.
[8] Mehdi Tofighi Naeem, Seyed Ali Jazayeri, and Nesa Rezamahdi “Failure Analysis of gas turbine blades.”
Proceedings of the IAJC-IJME International Conference, 2008.
[9] Condition Assessment of Boilers, Turbines, Generators, High Energy Piping, BOP
Equipment, Matco Service Brochure. www.matcoinc.com
[10]Al-Qahtani, M.,Jang, Y. J., Chen, H. C., and Han, J. C. 2001. Prediction of flow and heat transfer in rotating
two-pass rectangular channels with 45-degree rib turbulators. ASME Paper No. 2001-GT-187; ASME Journal of
Turbomachinery, April 2002, 124:242–250.
[12]Azad, G. S., Uddin, J. M., Han, J. C., Moon, H. K., and Glezer, B. 2001. Heat transfer in a two-pass rectangular
rotating channel with 45-degree angled rib turbulators. ASME Paper No. 2001-GT-186; ASME Journal of
Turbomachinery, April 2002, 124:251–259.
[13]Bonhoff, B., Tomm, U., Johnson, B. V., and Jennions, I. 1997. Heat transfer predictions for rotating U-shaped
coolant channels with skewed ribs and smooth walls. ASME Paper No. 97-GT-162. Camci, C., and Arts, T. 1985.
Short-duration measurements and numerical simulation of heat transfer along the suction side of a gas turbine blade.
ASME Journal of Engineering for Gas Turbines and Power 107:991–997.
[14]Du, H., Han, J. C., and Ekkad, S. V. 1998. Effect of unsteady wake on detailed heat transfer coefficient and film
effectiveness distributions for a gas turbine blade. ASME Journal of Turbomachinery 120:808– 817.
[15]Dunn, M. G. 2001. Convection heat transfer and aerodynamics in axial flow turbines . ASME Journal of
Turbomachinery 123(4):637–686.
![International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
STUDY OF THERMAL MAPPING FOR HEALTH MONITORING OF
GAS TURBINE BLADE
Pankaj S. Mandavkar1
, Suraj M. Surjuse2
Rishabh D. Sawane3
Deepa G. Dongre4
1
Jawaharlal darda institute of engineering. and technology, pankajmandavkar5@gmail.com
2
Jawaharlal darda institute of engineering. and technology, surajsurjuse111@gmail.com
3
, Jawaharlal darda institute of engineering. and technology, rishsawane71@gmail.com
41
Student, Jawaharlal darda institute of engineering. and technology, ddongre83@gmail.com
ABSTRACT
Thermal mapping for health monitoring of gas turbine is essential as modern day gas turbine subjected to very
high temperature applications, gas turbines are used extensively for aircraft propulsion, land-based power
generation, and industrial applications. Developments in turbine cooling technology play a critical role in
increasing the thermal efficiency and power output of advanced gas turbines. Gas turbine blades are cooled
internally by passing the coolant through several rib-enhanced Some tine passages to remove heat conducted
from the outside surface. External cooling of turbine blades by film cooling is achieved by injecting relatively
cooler air from the internal coolant passages out of the blade surface in order to form a protective layer between
the blade surface and hot gas-path flow. For health monitoring of gas turbine blade, this presentation focuses on
the effect of critical zone and hot spot along temperature distribution by using thermal paint. The comp utational
flow and heat transfer results are also presented. This presentation includes unsteady high free-stream
turbulence effects on film cooling performance with a discussion of detailed heat transfer coefficient and film-
cooling effectiveness distributions for standard and shaped film-hole geometry using the newly developed
transient liquid crystal image method.
Keywords: Thermal mapping, Blade internal cooling, Rotational effect, Film cooling,
-----------------------------------------------------------------------------------------------------------------------------
1. INTRODUCTION
The project is mainly based on thermal mapping and cooling of G.T. blades. Modern day turbine are designed to
run at well in excess current metal temperature limit Thermal mapping is going to be done by using thermal paint, it
gives temperature distribution across blades also detection of hot spot and critical zone. The G.T. blades exposed to
high temperature flue gases, many advance material proposed still not able to sustain it. So blades may fail and
deform that adversely affect the efficiency. The main motive of this project is to proposed effective cooling
technique to maintain proper health of Gas turbine blade. Investigation of advanced thermal mapping technique
Proposal for enhancement of cooling of G.T.blade. Investigation of rapid prototyping technique as advanced tool for
manufacturing of G.T. blade.
Prototypes of turbine blade are manufactured using rapid prototyping technology to analyze the temperature
distribution over their surface It is essential that the surface on which the paint is to be applied should be perfectly
clean and free from rust and oil stains. Presence of even a minute oil trace or rust results in peeling of the paints at](https://image.slidesharecdn.com/15feb1-150217105259-conversion-gate01/85/15feb1-1-320.jpg)
![International Journal of Research In Science & Engineering e-ISSN: 2394-8299
Volume: 1 Issue: 2 p-ISSN: 2394-8280
IJRISE| www.ijrise.org|editor@ijrise.org [01-06]
elevated temperatures. The component surface is properly prepared before application of the paints. A very thin
layer of the paint just barely enough to cover the metal surface is applied using a spray gun with air pressure of 30-
50 psig. The painted blades are air dried for about one hour and are further cured by heating themin the laboratory
furnace up to 3000C for 2 hours. Curing is carried out to strengthen the thermal paint bond with the metal surface
avoiding debonding (fusing) at elevated temperatures. After completion of the curing cycle the components are
allowed to cool down in the furnace itself. Withdrawal of the components fromthe hot furnace and sudden exposure
to room temperature weakens the paint bond due to thermal shock multiple-line equations, the number should be
given on the last line. The gas turbine blade with internal cooling hole is designed by using CATIA V. 5 the
designed geometry is converted into stl. Format for manufacturing by using rapid prototyping. Then these blade are
exposed to hot gases with thermal paint applied on it. As blade subjected to high temperature gases temperature
distribution along blade determined by using changes in color of thermal paint. Also by using CFD tools various
analysis performed to evaluate cooling improvement in blade due to internal holes.
2. Cad modeling of gas turbine blade
CAD modelling of gas turbine blade is an important part of entire project. Because the blade profile is very Complex
and it will decide the nature of the hot flowing fluid inside and over a blade. The advanced CAD software i.e.
CATIA V5 is selected for modelling the gas turbine blade. The blades consist of different internal passages for
cooling of blade. The cad model with CATIA gives accurate surfaces with correct internal cooling geometry. The
exterior surface of gas turbine blade as shown in fallowing figure.](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)