Experimental performance of perforated glazed solar air heaters and unglazed transpired solar air heater


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dc.contributor.author Vaziri, Roozbeh
dc.contributor.author İlkan, Mustafa
dc.contributor.author Egelioğlu, Fuat
dc.date.accessioned 2016-03-10T06:21:35Z
dc.date.available 2016-03-10T06:21:35Z
dc.date.issued 2015-09
dc.identifier.issn 0038-092X
dc.identifier.uri http://dx.doi.org/10.1016/j.solener.2015.06.043
dc.identifier.uri http://hdl.handle.net/11129/2260
dc.description Due to copyright restrictions, the access to the publisher version (published version) of this article is only available via subscription. You may click URI (with DOI: 10.1016/j.solener.2015.06.043) and have access to the Publisher Version of this article through the publisher web site or online databases, if your Library or institution has subscription to the related journal or publication. en_US
dc.description.abstract In this study, the thermal performances of perforated glazed solar air heaters (PGSAHs) having different inner collector colors and a black colored unglazed transpired solar air heater (UTSAH) were investigated experimentally. Two PGSAHs having perforated plexiglas glazing and different inside bottom colors were constructed. The third solar air heater was a UTSAH where the top cover was black colored perforated sheet metal. The diameters of the holes on the plexiglas covers and sheet metal cover were 3 mm and the pitch distance was 30 mm. No absorber plates were used in PGSAHs, where perforated metal cover is the absorber plate in the UTSAH. Added fans draw ambient air into the collectors through the perforated plexiglas in the PGSAHs. Similarly an added fan draws ambient air into the collector through the perforated metal in the UTSAH. The air mass flow rate was varied between 0.017 kg/s and 0.036 kg/s. The highest efficiencies were achieved at mass flow rate of 0.036 kg/s. The highest values of efficiency for black, green, blue, red, violet, light yellow and white PGSAHs were, 85%, 84%, 76%, 65%, 61%, 54%, and 55% respectively, while at the same mass flow rate the maximum value of efficiency for the UTSAH was 50%. en_US
dc.language.iso eng en_US
dc.publisher Solar Energy, Elsevier en_US
dc.relation.isversionof doi:10.1016/j.solener.2015.06.043 en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject Perforated glazed solar air heater en_US
dc.subject Transpired solar air heater en_US
dc.subject Thermal efficiency en_US
dc.subject Collector colors en_US
dc.title Experimental performance of perforated glazed solar air heaters and unglazed transpired solar air heater en_US
dc.type article en_US
dc.relation.journal Solar Energy en_US
dc.contributor.department School of Computing And Technology en_US
dc.identifier.volume 119 en_US
dc.identifier.startpage 251 en_US
dc.identifier.endpage 260 en_US

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