Analysis of A Screen Type Solar Air Collector Without Transparent Cover

Show simple item record Hassab, M. A. en_US
date.accessioned 2009-11-25T13:07:07Z en_US
date.available 2009-11-25T13:07:07Z en_US
date.issued 1989 en_US
identifier.citation Engineering Journal of Qatar University, 1989, Vol. 2, Pages 237-258. en_US
identifier.uri en_US
description.abstract The performance of a screen type solar air collector of different uniform mesh sizes and without a glass cover is investigated theoretically. Formulation of simultaneous radiation and convection heat transfer for a semi-steady condition in an isotropic, absorbing set of wire screens is presented. Both colimated and diffuse radiant heat fluxes are incident on the screens, causing absorption, reflection (scattering), emission and heating, the screens, which in turn heat the circulated air flowing normal to their surfaces. In the analysis, the interspacing of screens is chosen such that natural convection currents are prohibited. A set of theoretical equations is developed and solved numerically to obtain the temperature of the air at each screen level, and that leaving the collector. The results indicate that the performance of this type of collector could be further improved if the screens are designed such that the porosity of the upper layers is higher than that of the lower ones. en_US
language.iso en en_US
publisher Qatar University en_US
subject Energy en_US
title Analysis of A Screen Type Solar Air Collector Without Transparent Cover en_US
type Article en_US
identifier.pagination 237-258 en_US
identifier.volume 2 en_US

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