Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers

An experimental and theoretical study has been done to investigate the thermal performance of different types of air solar collectors, In this work air solar collector with a dimensions of (120 cm x90 cm x12 cm) , was tested under climate condition of Baghdad city with a (43° tilt angel) by using th...

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Autores principales:	Ahmed A. Mohammad Saleh, Taher Abbas Rashid
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2016
Materias:	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/4a30e9b3d3914728b7667846be92fec3
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spelling	oai:doaj.org-article:4a30e9b3d3914728b7667846be92fec32021-12-02T05:40:28ZExperimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers 1818-1171https://doaj.org/article/4a30e9b3d3914728b7667846be92fec32016-09-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=113856https://doaj.org/toc/1818-1171An experimental and theoretical study has been done to investigate the thermal performance of different types of air solar collectors, In this work air solar collector with a dimensions of (120 cm x90 cm x12 cm) , was tested under climate condition of Baghdad city with a (43° tilt angel) by using the absorber plate (1.45 mm thickness, 115 cm height x 84 cm width), which was manufactured from iron painted with a black matt. The experimental test deals with five types of absorber:- Conventional smooth flat plate absorber , Finned absorber , Corrugated absorber plate, Iron wire mesh on absorber And matrix of porous media on absorber . The hourly and average efficiency of the collectors were investigated for three values of mass flow rates (0.016 kg/s to 0.027 kg/s) for each type of collector and then the porosity for the last collector type was tested by changing the porosity of porous media. A typical air solar collector has been studied Theoretically to build a standard software for testing any type of air solar collectors with local weather data . From the experimental study it can be seen by using some obstacle material to the air flow (fins, corrugated absorber plate, iron wire mesh porous media on the absorber) could be enhanced the efficiencies not less than 4 % for finned type and 8 % for corrugated and 25 % for mesh and 30 % for porous media comparing with flat plate (smooth) collector . Theoretically, the results showed that the collector with high convention heat transfer coefficient porous media has high hourly efficiency about (η = 56 %) and iron wire mesh on absorber ( η = 52 % ), on the other side the minimum performance occurred in the flat plate absorber (η = 28 %). Comparison of results reveals that the theoretical predictions agree reasonably well with experimental results. And the difference between the theoretical and experimental efficiency in general was between (1─ 15 %).Ahmed A. Mohammad SalehTaher Abbas RashidAl-Khwarizmi College of Engineering – University of BaghdadarticleChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 12, Iss 3, Pp 110-120 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Ahmed A. Mohammad Saleh Taher Abbas Rashid Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers
description	An experimental and theoretical study has been done to investigate the thermal performance of different types of air solar collectors, In this work air solar collector with a dimensions of (120 cm x90 cm x12 cm) , was tested under climate condition of Baghdad city with a (43° tilt angel) by using the absorber plate (1.45 mm thickness, 115 cm height x 84 cm width), which was manufactured from iron painted with a black matt. The experimental test deals with five types of absorber:- Conventional smooth flat plate absorber , Finned absorber , Corrugated absorber plate, Iron wire mesh on absorber And matrix of porous media on absorber . The hourly and average efficiency of the collectors were investigated for three values of mass flow rates (0.016 kg/s to 0.027 kg/s) for each type of collector and then the porosity for the last collector type was tested by changing the porosity of porous media. A typical air solar collector has been studied Theoretically to build a standard software for testing any type of air solar collectors with local weather data . From the experimental study it can be seen by using some obstacle material to the air flow (fins, corrugated absorber plate, iron wire mesh porous media on the absorber) could be enhanced the efficiencies not less than 4 % for finned type and 8 % for corrugated and 25 % for mesh and 30 % for porous media comparing with flat plate (smooth) collector . Theoretically, the results showed that the collector with high convention heat transfer coefficient porous media has high hourly efficiency about (η = 56 %) and iron wire mesh on absorber ( η = 52 % ), on the other side the minimum performance occurred in the flat plate absorber (η = 28 %). Comparison of results reveals that the theoretical predictions agree reasonably well with experimental results. And the difference between the theoretical and experimental efficiency in general was between (1─ 15 %).
format	article
author	Ahmed A. Mohammad Saleh Taher Abbas Rashid
author_facet	Ahmed A. Mohammad Saleh Taher Abbas Rashid
author_sort	Ahmed A. Mohammad Saleh
title	Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers
title_short	Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers
title_full	Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers
title_fullStr	Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers
title_full_unstemmed	Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers
title_sort	experimental and theoretical study for performance enhancement of air solar collectors by using different absorbers
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2016
url	https://doaj.org/article/4a30e9b3d3914728b7667846be92fec3
work_keys_str_mv	AT ahmedamohammadsaleh experimentalandtheoreticalstudyforperformanceenhancementofairsolarcollectorsbyusingdifferentabsorbers AT taherabbasrashid experimentalandtheoreticalstudyforperformanceenhancementofairsolarcollectorsbyusingdifferentabsorbers
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Experimental and Theoretical Study for Performance Enhancement of Air Solar Collectors by Using Different Absorbers

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