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.
A passive solar system heat-driven convection or heat pipes to circulate the working fluid. Passive systems cost less and require low or no maintenance, but are less efficient. Overheating and freezing are major concerns.
An active solar system use one or more pumps to circulate water and/or heating fluid. This permits a much wider range of system configurations.
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.
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.
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.
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.
A complete description of types of power plant, it's working.
Types of the turbine.It contains detail description of turbine, coal handling plant, ash handling plant, the layout of thermal power plant. Economizer, air pre heater, super heater etc. It also contains details description of thermal power plant in India.Also, describe boiler and its types.
boiler accessories, basics of economizer, types of economizer, air preheater, types of air preheater, reheater, basics of superheater, types of superheater.
Fabrication and analysis of passive type Solar Water Heating System.
The system is manufactured in the workshop of Quaid-e-Awam University of Engineering,Science and Technology for fulfillment of my Bachelor Engineering Degree.
The system was successful by which good results ontained in winter season through thermosiphon water heating process with 40% efficiency.
Concentrated solar power in India - an evaluationSindhu Maiyya
Work done as a part of internship with Energy Alternatives India. A researched insight into India as an investment site for concentrated solar power generation. Technology explained along with pros, cons, and market conditions.
Types of air preheaters and its advantagesPreeti Agarwal
A very basic word to word meaning is a device used to heat the air before further use is called as Air Preheater. They are also recognized as air heaters or air-heating pipe. It is designed to exchange heat energy with desuperheaters. Desuperheater is a Device which is been used to reduce the temperature of the steam in a high heat generation plants where large amount of heat energy or steam is released in the atmosphere.
This presentations contains the basic layout of a thermal power palnt along with the components.Coal and it's types.Future of thermal power plant in India.
Fabrication, Designing & Performance Analysis of Solar Parabolic TroughIJERA Editor
A parabolic trough solar collector uses a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. The receiver absorbs the incoming radiations and transforms them into thermal energy, the latter being transported and collected by a fluid medium circulating within the receiver tube.This method of concentrated solar collection has the advantage of high efficiency and low cost, and can be used either for thermal energy collection, for generating electricity or for both, This paper focused on the fabrication and designing of solar parabolic trough, The designing of trough is depend upon the following parameters : Aperture of the concentrator , Inner diameter of absorber tube, Outer diameter of absorber tube, Inner diameter of glass tube, Outer diameter of glass tube, Length of parabolic trough, Concentration ratio, Collector aperture area, Specular reflectivity of concentrator, Glass cover transitivity for solar radiation, Absorber tube emissivity/emissivity, Intercept factor, Emissivity of absorber tube surface and Emissivity of glass. The performance analysis will be based on the Experimental data collection and calculations with reference to: Thermal performance calculations, Overall loss coefficient and heat correlations. Heat transfer coefficient on the inside surface of the absorber tube and Heat transfer coefficient between the absorber tube and the Cover.
A complete description of types of power plant, it's working.
Types of the turbine.It contains detail description of turbine, coal handling plant, ash handling plant, the layout of thermal power plant. Economizer, air pre heater, super heater etc. It also contains details description of thermal power plant in India.Also, describe boiler and its types.
boiler accessories, basics of economizer, types of economizer, air preheater, types of air preheater, reheater, basics of superheater, types of superheater.
Fabrication and analysis of passive type Solar Water Heating System.
The system is manufactured in the workshop of Quaid-e-Awam University of Engineering,Science and Technology for fulfillment of my Bachelor Engineering Degree.
The system was successful by which good results ontained in winter season through thermosiphon water heating process with 40% efficiency.
Concentrated solar power in India - an evaluationSindhu Maiyya
Work done as a part of internship with Energy Alternatives India. A researched insight into India as an investment site for concentrated solar power generation. Technology explained along with pros, cons, and market conditions.
Types of air preheaters and its advantagesPreeti Agarwal
A very basic word to word meaning is a device used to heat the air before further use is called as Air Preheater. They are also recognized as air heaters or air-heating pipe. It is designed to exchange heat energy with desuperheaters. Desuperheater is a Device which is been used to reduce the temperature of the steam in a high heat generation plants where large amount of heat energy or steam is released in the atmosphere.
This presentations contains the basic layout of a thermal power palnt along with the components.Coal and it's types.Future of thermal power plant in India.
Fabrication, Designing & Performance Analysis of Solar Parabolic TroughIJERA Editor
A parabolic trough solar collector uses a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. The receiver absorbs the incoming radiations and transforms them into thermal energy, the latter being transported and collected by a fluid medium circulating within the receiver tube.This method of concentrated solar collection has the advantage of high efficiency and low cost, and can be used either for thermal energy collection, for generating electricity or for both, This paper focused on the fabrication and designing of solar parabolic trough, The designing of trough is depend upon the following parameters : Aperture of the concentrator , Inner diameter of absorber tube, Outer diameter of absorber tube, Inner diameter of glass tube, Outer diameter of glass tube, Length of parabolic trough, Concentration ratio, Collector aperture area, Specular reflectivity of concentrator, Glass cover transitivity for solar radiation, Absorber tube emissivity/emissivity, Intercept factor, Emissivity of absorber tube surface and Emissivity of glass. The performance analysis will be based on the Experimental data collection and calculations with reference to: Thermal performance calculations, Overall loss coefficient and heat correlations. Heat transfer coefficient on the inside surface of the absorber tube and Heat transfer coefficient between the absorber tube and the Cover.
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.
Performance of solar air heater system using different shapes of turbulators ...IJECSJournal
This paper presents a performance analysis of three types of turbulators i.e V-shaped, Square shaped and Transverse wedge shaped turbulator on absorber plate of solar air heater system and are compared with flat plate collector. Effects of different turbulators on absorber plate of solar collector are studied and results are found out. The performance of turbulator used in this experimentation is evaluated in terms of heat transfer, Reynolds number, Nusselt number, Friction factor etc. The results shows that transverse wedge shaped turbulator have remarkable heat transfer enhancement and high Reynolds number as well as Nusselt number. It is also observed that heat transfer from transverse wedge shaped rib is more than that of flat plate collector.
Experimental Investigation on the Heat Transfer Coefficient of the Thermosyph...IJERA Editor
Two phase closed thermosyphon is a good heat transfer device. A large heat is transferred from evaporator to condenser with relatively a small temperature difference. In the present work, the heat transfer performance of two phase closed thermosyphon is analyzed experimentally with different cross section shape for the thermosyphon tube. A copper thermosyphon has been constructed with three different cross section shape (circular, square and rectangular) having the same hydraulic diameter and length. Methanol is used as the working fluid. The temperature distribution across the thermosyphon outer surface was measured and recorded using thermocouples. The results showed that the heat transfer coefficient increases with the increase of input power, thermal resistance is indirectly proportional to the input power. The maximum heat transfer coefficient (1815 W/m2C) for square cross section at the input power (500 W).
EXPERIMENTAL INVESTIGATION OF THERMAL PERFORMANCE OF CURTAIN-WALL-INTEGRATED ...ijiert bestjournal
A wall-integrated solar heating system refers to an archite ctural design approach that combines hot water generation with the building's construction sys tem. This combination allows this system to feature a hot water generation function and b ecome part of the building fa�ade. Environmental control devices and/or designs in buildings that are capable of harvesting solar thermal energy can effectively capture and st ore this solar energy and provide energy through the use of,for instance,a hot water system or a low-power thermoelectric material. Thermal energy storage (TES) is the key component f or such solar energy use,and it is one of the most promising and sustainable methods for energy stora ge in buildings. The TES systems used in buildings can be easily divided into three type s:sensible,latent,and thermo chemical energy storage (TCES).Because of its numerous advantages,such as its wide range of storage temperatures,high thermal capacity,non toxic ity,low cost,and easy obtain ability,water is often used as the storage medium in a sol ar water heating (SWH) system for domestic solar utilization.
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES)
Ad hoc & sensor networks, Adaptive applications, Aeronautical Engineering, Aerospace Engineering
Agricultural Engineering, AI and Image Recognition, Allied engineering materials, Applied mechanics,
Architecture & Planning, Artificial intelligence, Audio Engineering, Automation and Mobile Robots
Automotive Engineering….
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
Performance Analysis of a Shell Tube Condenser for a Model Organic Rankine Cy...IJERA Editor
The global energy demand increases with the economic growth and population rise. Most electrical power is currently generated by conventional methods from fossil fuels. Despite the high energy demand, the conventional energy resources such as fossil fuels have been declining. In addition to this harmful combustion byproducts are resulting global warming. However, the increase of environmental concerns and energy crisis can be minimized by sustainable utilization of the low to medium temperature heat resources. The Organic Rankine Cycle power plant is a very effective option for utilization of low grade heat sources for power generation. Heat exchangers are the main components of the Organic Rankine Cycle power plant which receives heat energy from the heat source to evaporate and condense the low boiling temperature organic working fluid which in turn drives the turbine to generate power. This paper presents a simplified approach to the design, fabrication and performance assessment of a shell tube heat exchanger designed for condenser in a model Organic Rankine Cycle geothermal power plant. The design involved sizing of heat exchanger (condenser) using the LMTD method based on an expected heat transfer rate. The heat exchanger of the model power plant was tested in which hot water simulated geothermal brine. The results of the experiment indicated that the heat exchanger is thermally suitable for the condenser of the model power plant.
This paper describes an experimental study of using the waste heat from a Panasonic Under-
Ceiling split room air - conditioner had a rated capacity of 3.51 kW (12,000 Btu/h). An under – ceiling
split type air conditioning for heating domestic water in private homes. Energy recovery improved the
performance, and the recovered energy could replace electricity completely for heating domestic water
use. An extra charge of refrigerant in the air-conditioner could prevent its compressor from over heating
during energy recovery. The experimental conducted on varies capacity of the range from 22.5 litres to
120 litres storage tank. Results show the water temperature increased lies in the range of 50 OC to 65
OC. It was found that, when the initial water temperature in the 22.5 litres storage tank 27 OC, the water
temperature reached 65 OC in 105 minutes. For 120 litres water, temperature increased from 27 OC to 62
OC,5 in 240 minutes.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
The Conception, Types, and Applications of Heat Pipe Solar Collector
1.
2. 1-Conception of heat pipe in general, types , and
applications.
2-Comparsion between flat plate, parabolic trough , and
heat pipe solar collector.
3-CFD analysis of heat pipe.
Topics of Symposium
3. The Objectives
1-To know the effect of heat pipe on the performance of
solar collectors.
2-To predict the thermal behavior of a solar heat pipe to
cover all details of design parameters of operation
condition with the CFD model.
4. George M. Grover
In 1963, Dr. Grover was working at the Los Alamos National Laboratory on the idea
of using a nuclear reactor to generate electricity in space when he developed the
first working heat pipe as a way to move heat out of the reactor very efficiently.
5. 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[1].
What is a Heat Pipe?
8. Working Principle
• The heat input region of the heat pipe is called evaporator(heat
source), the cooling region is called condenser (heat sink).
• In between the evaporator and condenser regions, there may be
an adiabatic region[1].
10. 1.Container
The function of the container is to isolate the working fluid from
the outside environment.
Selection of the container material depends on
many factors. These are as follows[3]:
• Compatibility (both with working fluid and external
environment)
• Strength to weight ratio
• Thermal conductivity
• Ease of fabrication, including welding, machinability and
ductility
11. 2.Working Fluid
• The prime requirements are[3]:
1. Compatibility with wick and wall material
2. Good thermal stability
3. Vapor pressure not too high or low over the operating temperature
range
4. High latent heat
5. High thermal conductivity
6. Low liquid and vapor viscosities
7. High surface tension
8. Acceptable freezing
12. 3.Wick Structure
1. It is a porous structure made of materials like steel, aluminium, nickel or copper
in various ranges of pore sizes.
2. The prime purpose of the wick is to generate capillary pressure to transport the
working fluid from the condenser to the evaporator.
3. It must also be able to distribute the liquid around the evaporator section to any
area where heat is likely to be received by the heat pipe.
4. The maximum capillary head generated by a wick increases with decrease in pore
size.
13. Heat pipe withstands more than one heat transfer limitation
such as Viscous, sonic, flooding, capillary and boiling
limitations. These limitations are depending on the working
fluid, wick structure, dimensions of the heat pipe and the heat
pipe operational temperature. The driving mechanism in the
heat pipe is the heat input, Q, which is related to the mass flow
rate of the working fluid and latent heat of vaporization(hfg
)[5].
Comparison between a Heat Pipe and a
Thermosyphon Performance with Variable
Evaporator Length
Anwar A. YousifDr. Hussain H. Ahmad
15. Electronics cooling Solar energy
Heat exchanger Dehumidifier
production tools, medicine and human-Other applications
body temperature control, engines and automotive industry[6].
16.
17. A passive solar system heat-driven convection or heat pipes to circulate the
working fluid. Passive systems cost less and require low or no maintenance, but
are less efficient. Overheating and freezing are major concerns
An active solar system use one or more pumps to circulate water and/or heating
fluid. This permits a much wider range of system configurations[7].
18. Passive
CHS system with tank above
collector
Active
system with pump and controller
driven by a photovoltaic panel.
24. A Laundromat in California with
panels on the roof providing
hot washing water[7]
A solar water heater installed
on a house in Belgium [7]
25. Advantages of flat plate solar heat pipe is [15]:-
It can easily achieve a temperature 60-80 OC
above ambient temperature,
It uses both beam and diffuse radiation,
Does not require tracking,
Requires little maintenance,
Efficiency:- 45% at 80 OC
Applications:- air heating, industrial process heating, and
passive air conditioning
31. Evacuated glass Tube
Evaporator Section
Tw
Tco
Qloss,tank
Ta
Condnser Section
Storage Tank
Solar Radiation
A
A
B
B
Qs
Water
Parabolic Trough Collector
Glass Tube
Copper Tube
Storage Tank
Pump
Tin
Tout
30%
Temperature Distribution with Time [19]
32.
33. Temperatures in the two separate reservoirs (red picnic coolers) were logged
automatically throughout the day as was the ambient temperature in a shaded location
near the solar test jig[21].
George Plhak
October,09 ,2011
Ontario, Canada
34. Several points may be considered [22]:-
1- Reflecting surfaces are structurally simpler than flat
plate collectors.
2- The absorber area of a concentrator system is smaller
than that of flat plate system for the same solar energy
collection.
3- Heat lost to the surrounding per unit area of the solar
energy collecting is less than that of the flat plate.
4- Working fluid can attain higher temperature in the
concentrating collector.
35.
36. Azad
( 2008)
Presented experimental work to study of the performance of a flat plate solar
collector utilizing heat pipes. The solar collector was installed and tested under
conditions in Tehran (longitude 52.3oE; latitude 35.7oN)
It was found that with the increase of the heated length-cooled length, Le/Lc, the
absorber area will increase and thus both the heat loss from the absorber and the
absorbed solar energy by absorber plate will increase. On the other hand the heat
transfer coefficient in condenser will increase and lead to increase the heat transfer
rate in the condenser. The experimental efficiency was 55.6%.
LITERATURE REVIEW
Flat Plate
37. Ruchi
( 2014)
presented experimental study of a flat-plate solar collector to investigate the
performance of thermosyphon solar water heating (SWH) system using R744(CO2) as
.the working fluid
The results indicated that, the heat recovery efficiency (ηRE) and the time-averaged
collector efficiency (ηcol) were calculated around 45% and 59%, respectively.
LITERATURE REVIEW
Flat Plate
38. LITERATURE REVIEW
Ramsey et al
( 1977)
They evaluated the performance of the parabolic trough solar collector by using
three different absorbers. The tests were conducted at a desert test site at a latitude
of 34° N near Phoenix, Arizona .
1-The peak efficiency for the collector in the absence of heat losses is approximately
62% when the incoming solar energy is normal to the collector aperture.
2-The losses which occurred at elevated temperatures (300oC) decreased the peak
efficiencies to 50% and 30%, respectively, for the selectively coated and black
painted tubes.
Parabolic Trough
39. LITERATURE REVIEW
Presented experimental study for a U-type natural circulation heat pipe system
was designed and applied to a parabolic trough solar collector for generating mid-
temperature steam.
Liang et al
( 2012)
1-The system can generate mid-temperature steam of a pressure up to 0.75 Mpa.
2-The thermal efficiency was found to be 38.52% at discharging pressure of 0.5
MPa during summer time.
Parabolic Trough
40. Selvakumar et al
( 2014)
Presented experimental study for the evacuated tube(heat pip) collector using
synthetic oil as heat transfer fluid coupled with parabolic trough collector for instant
hot water generation in the presence of low solar irradiance.
1-The system can produce instant hot water at temperatures between 40 oC & 68 oC
under low solar radiation.
2-Using of parabolic trough along with evacuated tube can increase the heating
efficiency by 30% in the instant hot water generation process.
LITERATURE REVIEW
Parabolic Trough
41. Jafari et al
( 2015)
Presented experimental work combination of a heat pipe and a twin-glass evacuated
tube collector is utilized with a parabolic through solar collector for desalination
system.
The results showed that the rate of production and efficiency of desalination
systems can reach to 0.27 kg/(m2.h) and 22.1% respectively when aluminum
conducting foils are used in the space between the twin-glass evacuated tube
collector and the heat pipe to transfer heat from the tube collector to the heat pip.
LITERATURE REVIEW
Parabolic Trough
42.
t
a
sstfstwst
s
dttIA
TTcM
0
)(
)(
t
a
t
t
loadinloadoutwloadsstfstwst
s
dttIA
dtTTcmTTcM
0
,,
.
)(
)(
2
1
Without Load
With Load
Overall system performance with loading is always greater than the overall
system performance of solar system without load because the extra energy
(water flow rate) added to the storage energy inside the tank [19].
43. The sub-discipline of heat pipe science
has its foundation in several classical
fields
Fluid Mechanics
Thermodynamic
Heat Transfer
Mass Transfer
Type of Flow
2D or 3D
Unsteady Sate
Laminar
Two Phase
57. 1-Solar heat pipe can be used as a good alternative of
direct solar collector.
2-Flat plate solar heat pipe collector is efficient than flat
plate solar collector.
3-Parabolic trough solar heat pipe collector is better
than flat plate solar heat pipe in terms of obtaining large
thermal energy.
4- Ansys program gave a good results for thermal behavior
.of a solar heat pipe
58. 1-select heat pipe according to Heat transport limitation
[5] .
2-Using Nanofluid as a working fluid inside solar heat pipe.
3-Use Ansys program original version may lead to solve the
problem of solar heat pipe.
4-Use computers network station to solve solar heat pipe by
Ansys Program.
59. •1-Vijayakumar,P., Sajairaj,S., and Santhoshkumar,R."Review on Conventional, Modern Heat Pipes and Its
Applications "International Research Journal of Engineering and Technology,Vol.3,pp.513-518,2016.
2-Ong,K."Heat pipes"Jurutera.pp.16-18,2008.
3-Bahman,Z." Heat Pipe Design and Technology": Modern Applications for Practical thermal Management"2011.
4-Shigeki,H., Shota,S.& Tsuyoshi,K. "Study On Heat Transfer Characteristics of Loop Heat Pipe for Solar Collector"
Transaction on Control and Mechanical Systems,Vol.2,No.4,pp.149-154,2013.
•5-Hussain,H&Anwar,A. "Comparison Between a Heat Pipe and a Thermosyphon1 Performance with Variable
Evaporator Length “Journal of Al Rafdain Engineering,Vol.21,No.2,pp.1-12,2011.
http://www.thermalfluidscentral.orgFluids Central"–Heat pipe "Thermal-6
7-Solar water heating"WIKIPEDIA"https://en.wikipedia.org/wiki/Solar_water_heating
8-Overview of Flat Plate Collectors
"685/node/811education.psu.edu/eme-https://www.e"
“Tube Solar CollectorsEvacuated-9
"solar.htm1904http://www.homebuildercanada.com/
•10-Evacuted Tbes
•http://www.platek.com/solar/tube_products.html
60. 11-HAY RIVER SOLAR THERMAL DOMESTIC HOT WATER SYSTEM
"http://aea.nt.ca/blog/2015/02/hay-river-solar-thermal-domestic-hot-water-system"
12-Heat Pipe Manifold
"http://webcache.googleusercontent.com/search?q=cache:http://www.sltenergy.com/heat-pipe-manifold/"
13-Heat Pipes
"http://www.apricus.com/html/solar_collector_heat_pipe.htm#.WsdTIYhubIU"
14- "https://www.youtube.com/watch?v=rJP7y_7gN9Y&t=965s"
15-G.Sawhney"NON CONVENTIONAL RESOURCES OF ENERGY",2012.
16-Solar Collectorhttp://www.ecosmart.com.au/products/solar-collector
17-Solar Water Heaters https://solartown.com/learning/solar-water-heaters/solar-water-heater-choices-flat-plate-or-
evacuated-tube-collectors/
18-Mohamad,A.,Orfi,J., Alansary,H." Heat losses from parabolic trough solar collectors",Int.J.Energy Res,2013
19- Muhammad,A. "Heat Pipe Solar Collector With Automatic Tracking system “Doctoral Thesis,Mech.Eng.Dept.,College of
Engineering, University of Technology ,2016.
20-Parabolic Solar Trough" http://www.parabolicsolartrough.com/“
21- Comparing concentrator to flat plate solar collector" https://georgesworkshop.blogspot.com/2011/10/comparing-
concentrator-to-flat-plate.html"
22- Pradeep ,K. &Venkatesh,R. "Design, Fabrication and Experimental Testing of Solar Parabolic Trough Collectors With
Automated Tracking Mechanism", International Journal of Research in Aeronautical And Mechanical Engineering, Vol.1
issue.4, pgs 37-55,2013.
23- Renewable Space Heating" https://www.epa.gov/rhc/renewable-space-heating"
61. 24- Azad,E. "Theoretical and Experimental Investigation of Heat Pipe Solar Collector "Journal of Experimental Thermal and
Fluid Science,Vol.32,pp.1666-1672,2008.
25- Ruchi,S.&Sumath,K. "Performance Evaluation of a Thermosyphon Solar Water Heater Using Supercritical CO2 as
Working Fluid "International Journal of Advances in Mechanical & Automobile Engineering,Vol.1,pp.43-48,2014.
26- Ramsey,J.W,Gupta,B.P.&Knowles,G.R. "Evaluation of a Cylindrical
Parabolic Solar Collector”Journal of Heat Transfer,Trans.,Vol.99,pp.163-168,May,ASME,1977,ASME.
27- Liang,Z.,Wujun,W., "An Experimental Investigation of a Natural Circulation Heat Pipe System Applied to a Parabolic
Trough Solar Collector Steam Generation System"Journal of Solar Energy,vol.86,pp.911-919,2012.
28- Selvakumar,P., Somasundaram, P., Thangavel,P. "Performance Study on Evacuated Tube Solar Collector Using Therminol
D-12 as Heat Transfer Fluid Coupled with Parabolic Trough", Journal of energy Conversion and Management,vol.85,pp.505-
510,2014.
29- Jafari,M.,Jahangiri,M & Shafii"A new Desalination System Using a Combination of Heat Pipe, Evacuated Tube and
Parabolic Trough Collector"Journal of energy Conversion and Management,vol.99,pp.141-150,2015.
30- Asghar,A.,Masoudi,R.&Ammar,A. "CFD Modeling of Flow and Heat Transfer in a Thermosyphon",International
Communication In Heat and Mass Transfer,Vol.37,pp.312-318,2010