Journal
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
Volume 11, Issue -, Pages 543-548Publisher
SPRINGER
DOI: 10.1007/s10450-005-5982-8
Keywords
activated carbon; methanol; solar refrigeration
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It is the purpose of this work to present an experimental analysis of the thermodynamic cycles in a multi-tubular adsorber of a solar-powered icemaker that uses activated carbon-methanol pair. The experimental cycles were obtained from tests made under different meteorological conditions-mainly the conditions pertaining to cloud cover degree. The system was tested in a Brazilian region close to the Equator (7 degrees 8'S, 34 degrees 50'WG) during the period October-December 2003. On a typical clear sky day, the regenerating temperature reached 94 degrees C, the condensed methanol mass amounted to 3 kg, and the machine produced 6 kg of ice/m(2) day at -3.3 degrees C, with a net solar coefficient of performance (COPs) of 0.085. These results were compared to those obtained from a similar prototype that utilizes the same adsorptive pair and an usual flat adsorber, tested in Tunisia (35 degrees 45'N, 10 degrees 45'WG).
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