ISSN 2319-5347, ISI Impact Factor: 0.763

VOLUME 04  NO. 01 JANUARY 2016:

Title:             Integration of heat pump assisted by solar energy for drying agro - products
Authors:      Lai Quoc Dat, Chau Tran Diem Ai, Nguyen Quang Hung
Abstract:    Heat pump-assisted dehumidified has been popularly applied for drying agricultural products.To increase the energy utilization, the solar energy is applied for heating hot air in the heat pump-assisted dehumidifier.This drying system was used to dry red beetroot, artichoke and squid at pilot scale. In the drying process of red beet root, after 16 hours of drying, moisture was 0,094 kg/kg dried matter; the loss of betacyanin was approximately 21%; SMER and COP were respectively 1,67 kg of evaporated H2O/kWh and 7,21. In the drying process of artichoke,after 30 hours of drying, moisture was 0,11 kg/kg dried matter; the loss of antioxidant capacity was approximately 15,5 %; SMER and COP were respectively 2,01 kg of evaporated H2O/kWh and 7,17. In the drying process of squid, after 8 hours of drying, moisture was 1,31 kg/kg dried matter;
SMER and COP were respectively 0,59 kg of evaporated H2O /kWh and 6,02. In comparison to bedded drying,to obtain the same moisture, the heat pump-assisted dehumidifier equipped solar energy collection showed the shorter drying time and the higher quality remained. Results indicate that, it is highly potential to apply heat pump assisted dehumidifier equipped solar energy collection for drying agricultural products.
Keywords:  Heat Pump – Assisted Dehumidifier, Solar Energy, Red Beetroot, Artichoke, Squid
Pages:        19-23

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