In the last rice harvest season, experimental results have been obtained on the efficiency and drying quality of a solar assisted heat pump drying prototype system. The system has been operated as a solar and heat pump system and drying curves for the different options have been obtained. The...

The use of a combined solar-heat pump rice drying system is being developed as an alternative to conventional mechanical dryers. The experimental equipment developed is a modified 7 kW R-22 air conditioning unit and is combined with a solar colector for a more precise control of temperature and...