Experimental thermodynamic cycles and performance analysis of a solar-powered adsorptive icemaker in hot humid climate

Antonio Pralon Ferreira Leite, Marcelo Bezerra Grilo, Rodrigo Ronelli Duarte Andrade, Francisco Antonio Belo and Francis Meunier

Renewable Energy, 2007, vol. 32, issue 4, 697-712

Abstract: This paper analyzes and presents the thermodynamic cycles and the experimental performance parameters of a solar adsorptive icemaker that uses activated-carbon methanol pair. The solar energy technology employed is far less sophisticated than that of collectors using selective surface or evacuated tubes. The collector-adsorber is multi-tubular with an opaque black radiation-absorbing surface, and thermal insulated by means of transparent covers, the so-called transparent insulation material (TIM). The solar radiation hits on both faces of the tubes by means of semi-cylindrical reflectors. It is shown the results of tests carried out in a region of Brazil close to the Equator, on days characterized by the predominant cloud cover degree. Three cycles have been analyzed: one with clear sky, another with partially cloudy sky, and a third under entirely cloudy sky. The maximum regenerating temperatures were 100.1, 87.3 and 92.7°C, with an ice production of 6.05, 2.10 and 0kg by square meter of projected area, for cycles of clear sky, partially cloudy and overcast nights, respectively.

Keywords: Adsorption refrigeration; Activated carbon–methanol; Solar energy (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:32:y:2007:i:4:p:697-712

DOI: 10.1016/j.renene.2006.03.002

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