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|Title:||Performance of evaporator-collector and air collector in solar assisted heat pump dryer|
|Authors:||Hawlader, M.N.A. |
Performance of collectors
|Source:||Hawlader, M.N.A., Rahman, S.M.A., Jahangeer, K.A. (2008-06). Performance of evaporator-collector and air collector in solar assisted heat pump dryer. Energy Conversion and Management 49 (6) : 1612-1619. ScholarBank@NUS Repository. https://doi.org/10.1016/j.enconman.2007.12.001|
|Abstract:||A solar assisted heat pump dryer has been designed, fabricated and tested. This paper presents the performance of the evaporator-collector and the air collector when operated under the same meteorological conditions. ASHRAE standard procedure for collector testing has been followed. The evaporator-collector of the heat pump is acting directly as the solar collector, and the temperature of the refrigerant at the inlet to the evaporator-collector always remained below the ambient temperature. Because of the rejection of sensible and latent heats of air at the dehumidifier, the temperature at the inlet to the air collector is lower than that of the ambient air. Hence, the thermal efficiency of the air collector also increases due to a reduction of losses from the collector. The efficiencies of the evaporator-collector and the air collector were found to vary between 0.8-0.86 and 0.7-0.75, respectively, when operated under the meteorological conditions of Singapore. © 2007 Elsevier Ltd. All rights reserved.|
|Source Title:||Energy Conversion and Management|
|Appears in Collections:||Staff Publications|
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