Numerical simulation of solar chimney integrated with exhaust of thermal power plant
• The heat losses within exhaust gases are an unavoidable part of operating any fuel-fired system. The flue gases still hold considerable thermal energy, which is exhausted to the atmosphere as waste heat and contributes to global warming. This paper presents a developed technique to enhance the per...
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my.utp.eprints.88482017-03-20T01:59:33Z Numerical simulation of solar chimney integrated with exhaust of thermal power plant Al-Kayiem, Hussain H. Yin Yin, K Yee Sing, C QC Physics TA Engineering (General). Civil engineering (General) TD Environmental technology. Sanitary engineering • The heat losses within exhaust gases are an unavoidable part of operating any fuel-fired system. The flue gases still hold considerable thermal energy, which is exhausted to the atmosphere as waste heat and contributes to global warming. This paper presents a developed technique to enhance the performance of low temperature solar thermal systems by utilization of thermal energy recovery of flue gases. A CFD model was established based on the energy, momentum and mass conservation and the state equation in 2-D, steady assumption with kepsilon for the turbulence modelling using FLUENT - version 6.2.16 software. The model simulates the thermal and fluids flow processes in an inclined modified solar chimney. The flue inlet temperature was varied as, T f g= 603K, 843K, and 983K. The simulation results were validated by comparison with experimental results obtained from a lab scale model, and acceptable agreement was gained. When the flue temperature is increased from 605K to 843K, the performance is enhanced by 75%. The interesting find is that the efficiency of heat collection tends to increase as the absorber length increases up to a certain length, and then starts to decrease. In this study, the suitable dimension for solarflue gas collector is about 2.5 m WITpress 2012 Book Section PeerReviewed text/plain http://eprints.utp.edu.my/8848/4/heat-transfer-2012.txt http://library.witpress.com/pages/paperinfo.asp?PaperID=23600 Al-Kayiem, Hussain H. and Yin Yin, K and Yee Sing, C (2012) Numerical simulation of solar chimney integrated with exhaust of thermal power plant. In: Advanced Computational Methods,and Experiments in Heat Transfer. WIT Transactions on Engineering Sciences (75). WITpress, pp. 61-72. ISBN 978-184564602-8 http://eprints.utp.edu.my/8848/ |
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QC Physics TA Engineering (General). Civil engineering (General) TD Environmental technology. Sanitary engineering Al-Kayiem, Hussain H. Yin Yin, K Yee Sing, C Numerical simulation of solar chimney integrated with exhaust of thermal power plant |
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• The heat losses within exhaust gases are an unavoidable part of operating any fuel-fired system. The flue gases still hold considerable thermal energy, which is exhausted to the atmosphere as waste heat and contributes to global warming. This paper presents a developed technique to enhance the performance of low temperature solar thermal systems by utilization of thermal energy recovery of flue gases. A CFD model was established based on the energy, momentum and mass conservation and the state equation in 2-D, steady assumption with kepsilon for the turbulence modelling using FLUENT - version 6.2.16 software. The model simulates the thermal and fluids flow processes in an inclined modified solar chimney. The flue inlet temperature was varied as, T f g= 603K, 843K, and 983K. The simulation results were validated by comparison with experimental results obtained from a lab scale model, and acceptable agreement was gained. When the flue temperature is increased from 605K to 843K, the performance is enhanced by 75%. The interesting find is that the efficiency of heat collection tends to increase as the absorber length increases up to a certain length, and then starts to decrease. In this study, the suitable dimension for solarflue gas collector is about 2.5 m |
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Book Section |
author |
Al-Kayiem, Hussain H. Yin Yin, K Yee Sing, C |
author_facet |
Al-Kayiem, Hussain H. Yin Yin, K Yee Sing, C |
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Al-Kayiem, Hussain H. |
title |
Numerical simulation of solar chimney integrated with exhaust of thermal power plant |
title_short |
Numerical simulation of solar chimney integrated with exhaust of thermal power plant |
title_full |
Numerical simulation of solar chimney integrated with exhaust of thermal power plant |
title_fullStr |
Numerical simulation of solar chimney integrated with exhaust of thermal power plant |
title_full_unstemmed |
Numerical simulation of solar chimney integrated with exhaust of thermal power plant |
title_sort |
numerical simulation of solar chimney integrated with exhaust of thermal power plant |
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WITpress |
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2012 |
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http://eprints.utp.edu.my/8848/4/heat-transfer-2012.txt http://library.witpress.com/pages/paperinfo.asp?PaperID=23600 http://eprints.utp.edu.my/8848/ |
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13.18916 |