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DYNAMIC CHARACTERISTICS OF COOLING AND DEHUMIDIFICATION IN PHYTOTRON SYSTEM

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概要 Dynamic characteristics of cooling and dehumidification in phytotron system were examined for obtaining information about more reliable and suitable operation of the controlled environments. Temperatu...res and humidities were measured at different positions in the phytotron system by using thermocouples and electric capacitance meters, respectively. Cooling characteristics were clearly found in the delay times; the delay time at air outlet of the coil was larger than that at air inlet. Capacity and characteristics of dehumidification were analyzed by the difference in absolute humidity between at both sides of the coil. Distinct difference in peak time of dehumidification was found among initial air temperatures; dehumidification effect was lower at lower initial air temperatures. It is suggested that the enthalpy change at the coil acts predominantly for dehumidification of air at higher initial air temperature, and for air cooling at lower initial air temperature.続きを見る

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登録日 2009.04.22
更新日 2017.06.12