Experimental Performance of Solid-Gas Chemical Heat Pump in Solar Chemical Heat Pump Dryer

摘要

A solar assisted chemical heat pump dryer has been designed, fabricated and tested. The performance of the system 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 units and dryer chamber. A solid gas chemical heat pump unit consists of reactor, condenser and evaporator. The reaction used in this study (CaCL_2-NH_3). The maximum experimental value of the COPh for the solid-gas chemical heat pump of 2 was found, and the total system energy output is 51 kWh over drying time about 9 hours. The results show that any reduction of energy at condenser as a result of a decrease in solar radiation which in the final decrease the coefficient of performance as well as decrease the efficiency of drying.