 Experimental and theoretical investigation of a nocturnal radiator for space coolingH.S. Bagiorgas and G. Mihalakakou Renewable Energy, 2008, vol. 33, issue 6, 1220-1227 Abstract: An aluminium nocturnal radiator, painted with an appropriate white paint, was established on the roof of the Department of Environmental and Natural Resources Management in Agrinio, Western Greece. The lightweight metallic radiator was used for cooling the ambient air below its initial temperature. The dynamic thermal performance of the system during summer months was calculated using an accurate mathematical model, based on the heat transferred from the air circulating inside the radiator to the ambient air. Furthermore, an extensive validation process was carried out. Thus, the experimental air temperature values at the radiator's outlet were compared with the theoretical ones and a very good agreement was achieved. The validation process was extended for two radiator's paints with different emissivities, in order to investigate the impact of different materials’ optical parameters on the system's efficiency. Keywords: Passive cooling; Radiative cooling; Sky temperature; Clear sky emissivity; Metallic nocturnal radiator (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:33:y:2008:i:6:p:1220-1227 DOI: 10.1016/j.renene.2007.04.015 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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