Resource Efficient Hybrid Dryer (REHD) technology
Resource Efficient Hybrid Dryer (REHD) technology is a patented technology using combination direct solar radiation and configuration of cabinet dryer mainly drying for fruits and vegetables. The rated capacity of dryer is 40-60 kg moisture evaporation / day (24 hr). However, the drying time for the vegetable generally depends on initial moisture, final moisture, moisture release characteristic of drying material, solar radiation level and ambient conditions.
REHD technology operates on combination heat received from solar radiation and hot air generated from biomass / farm residue heat source. The heat released form the biomass combustion is supplied to a working fluid; the working fluid is passed through a hot air generating heat exchanger to generate hot air at 55-75 °C. The hot air is passed through draying cabinet to dry vegetable/fruits placed in the drying trays. The footprint required for the drying cabinet is 32 sq. ft. (8 ft x 4 ft) and it will be installed in 150 sq. ft. shed (15 ft x 10 ft). The plant connected load 0.4 kW single phase mainly for air movement and working fluid circulation.