Abstract
The performance of a solar-assisted chemical heat pump dryer has been studied under the meteorological conditions of Malaysia. The system consists of four mean components: solar collector (evacuated tubes type), storage tank, solid-gas chemical heat pump (CHP) unit and dryer chamber. A solid-gas CHP unit consists of a reactor, condenser and evaporator. The reaction (CaCl2-NH3) has been used in this study. A series of experiments have been performed on the system under varied conditions for two days. The maximum values of solar fraction from the experiments on clear and cloudy days are 0.713 and 0.322, respectively; whereas the coefficient of performance of CHP (COPh) maximum values of 2 and 1.42 are obtained from the experiments on clear and cloudy days, respectively. The total system energy output from the experiment on a clear day is 51 kWh against 25 kWh on a cloudy day. Any reduction of energy at the condenser as a result of decrease in solar radiation will decrease the coefficient of performance as well as the efficiency of drying.
| Original language | English |
|---|---|
| Pages (from-to) | 78-83 |
| Number of pages | 6 |
| Journal | International Journal of Low-Carbon Technologies |
| Volume | 4 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jun 2009 |
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Keywords
- Coefficient of performance
- Drying
- Evacuated tubes solar collector
- Solar fraction
- Solid-gas chemical heat pump
ASJC Scopus subject areas
- Environmental Science(all)
- Civil and Structural Engineering
- Architecture
Cite this
An experimental analysis of solar-assisted chemical heat pump dryer. / Ibrahim, M.; Sopian, Kamaruzzaman; Wan Daud, Wan Ramli; Alghoul, M. A.
In: International Journal of Low-Carbon Technologies, Vol. 4, No. 2, 06.2009, p. 78-83.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An experimental analysis of solar-assisted chemical heat pump dryer
AU - Ibrahim, M.
AU - Sopian, Kamaruzzaman
AU - Wan Daud, Wan Ramli
AU - Alghoul, M. A.
PY - 2009/6
Y1 - 2009/6
N2 - The performance of a solar-assisted chemical heat pump dryer has been studied under the meteorological conditions of Malaysia. The system consists of four mean components: solar collector (evacuated tubes type), storage tank, solid-gas chemical heat pump (CHP) unit and dryer chamber. A solid-gas CHP unit consists of a reactor, condenser and evaporator. The reaction (CaCl2-NH3) has been used in this study. A series of experiments have been performed on the system under varied conditions for two days. The maximum values of solar fraction from the experiments on clear and cloudy days are 0.713 and 0.322, respectively; whereas the coefficient of performance of CHP (COPh) maximum values of 2 and 1.42 are obtained from the experiments on clear and cloudy days, respectively. The total system energy output from the experiment on a clear day is 51 kWh against 25 kWh on a cloudy day. Any reduction of energy at the condenser as a result of decrease in solar radiation will decrease the coefficient of performance as well as the efficiency of drying.
AB - The performance of a solar-assisted chemical heat pump dryer has been studied under the meteorological conditions of Malaysia. The system consists of four mean components: solar collector (evacuated tubes type), storage tank, solid-gas chemical heat pump (CHP) unit and dryer chamber. A solid-gas CHP unit consists of a reactor, condenser and evaporator. The reaction (CaCl2-NH3) has been used in this study. A series of experiments have been performed on the system under varied conditions for two days. The maximum values of solar fraction from the experiments on clear and cloudy days are 0.713 and 0.322, respectively; whereas the coefficient of performance of CHP (COPh) maximum values of 2 and 1.42 are obtained from the experiments on clear and cloudy days, respectively. The total system energy output from the experiment on a clear day is 51 kWh against 25 kWh on a cloudy day. Any reduction of energy at the condenser as a result of decrease in solar radiation will decrease the coefficient of performance as well as the efficiency of drying.
KW - Coefficient of performance
KW - Drying
KW - Evacuated tubes solar collector
KW - Solar fraction
KW - Solid-gas chemical heat pump
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U2 - 10.1093/ijlct/ctp016
DO - 10.1093/ijlct/ctp016
M3 - Article
VL - 4
SP - 78
EP - 83
JO - International Journal of Low Carbon Technologies
JF - International Journal of Low Carbon Technologies
SN - 1748-1317
IS - 2
ER -