Effect of Flow Rate on Performance of Solar Adsorption Chiller Keeping Fixed Evaporator Outlet Temperature

Abstract

A two bed basic adsorption chiller run by solar heat is investigated to get a fixed chilled water outlet temperature. Generally, a solar heat driven adsorption chiller, being activated with intermittent heat source, cannot produce uniform cooling. In this context, it is found that the flow rate of inlet chilled water can help to keep the evaporator outlet temperature constant. The performance of the chiller is also observed at day time for the climate condition of Dhaka, Bangladesh. Silica gel and water is considered as the working pair in the present study. The results show that 1100sec cycle time along with 38.64m2 collector area gives better performance with fixed chilled water outlet temperature (7°C).