APPARATUS AND METHOD OF CONTROLLING RELATIVE HUMIDITY OF AGRICULTURAL PRODUCTS STORAGE

摘要

A humidity control apparatus for an agricultural product storage warehouse includes: an evaporator divided into multiple regions and lowering an internal temperature of the storage warehouse; expansion valves and opening and closing valves connected to the respective regions of the evaporator; a cooling unit having a condenser and a compressor for sending a gas refrigerant to the condenser connected to the evaporator via the expansion valves and the opening and closing valves; and a control unit controlling a difference between the internal temperature and the evaporation temperature by selectively opening and closing the expansion valves and the opening and closing valves and controlling a heating surface area of the evaporator in order to control a relative humidity in accordance with a moisture content of an agricultural product stored in the storage warehouse. Accordingly, the relative humidity can be easily controlled depending on the agricultural product stored in the agricultural product storage warehouse.