南方温室内空气循环式蓄热除湿系统的冷凝、蓄热与除湿效应

根据2003年1月、2月的相关观测资料，研究了冷凝温室内空气循环式蓄热除湿系统的冷凝、蓄热与除湿效应。结果表明：冷凝温室在2003年1月的晴天里，集水池平均每天蓄积冷凝水76810m^3，折合温室产生冷凝水量32g／m^2和12．1g／m^3；平均每天冷凝水吸收的汽化热为18858kJ。在典型晴天，冷凝温室下、中、上各层的日平均相对湿度分别比对照温室降低2．7个百分点、3．5个百分点、2．6个百分点，日平均绝对湿度分别比对照温室降低2．7g／m^3、4．1g／m^3、4．5g／m^3；在1月份，2座温室内同日同层次的相对湿度与绝对湿度，均呈现出冷凝〈对照，但以晴天差异尤为明显，阴雨天差异较小。空气循环式温室蓄热除湿系统的冷凝、蓄热、除湿效果明显。

Condensation, Heat storage and Dehumidification Effects of Air-circulating and Regenerative Dehumidification System inside Greenhouse in Southern China

Based on the relevant observational data in January and February of 2003, the condensation, heat storage and dehumidification effects of air-circulating and regenerative dehumidification system inside greenhouse in the Southern China were studied. The results showed that the daily mean condensation water inside the condensation greenhouse on the sunshine days in January of 2003 amounted to 7681cm^3/day, which was equivalent to 32g/m^2 greenhouse area and 12. lg/m^3 greenhouse volume. The daily mean vaporization heat absorption of condensed water was 18858 kJ. On a typical sunshine day, the daily average relative humidity on the lower level, middle level, upper level inside the condensation greenhouse were 2.7% , 3.5% and 2.6% lower than that inside the control greenhouse respectively, while the daily average absolute humidity on the lower level, middle level, upper level inside the condensation greenhouse were 2.7g/m^3, 4. lg/m^3, 4.5g/m^3 lower respectively. In January, both relative humidity and absolute humidity on the same level on the same day inside the condensation greenhouse were lower than that inside the control greenhouse, but it was different from the sunshine days, and it was smaller on the rainy and cloudy days. In short, condensation, heat storage and dehumidification effects of air-circulating and regenerative dehumidification system inside greenhouse in the Southern China were significant.