Heat Pump Dryer

Heat pump assisted drying provides a controllable drying environment (temperature and humidity) for better products quality at low energy consumption. It has remarkable future prospects and revolutionaries ability. The heat pump system consists of an expansion valve, two heat exchangers (evaporator and condenser), and a compressor, which are connected by using copper tubes.

Drying is an indispensable process in many food industries and in many agricultural countries, the large quantities of food products are dried to improve shelf life, reduce packaging cost, lower shipping weights, enhance appearance, encapsulate original flavour and maintain nutritional value . The primary objective of drying is to remove moisture from the food so that bacteria, yeast and mold cannot grow and spoil the food. The economic consideration, environmental concerns and product quality aspects are the main three fold goal of drying process research in food industry . The big market for dehydrated fruits and vegetables increases importance of drying for most of the countries worldwide.

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