结露对双层塑料薄膜温室保温性能的影响测试分析

 结露现象在温室中普遍存在，该试验通过对双层薄膜温室内自然结露和人工结露两种情况的室内最低温度同室外进行对比测试，对结露时间早晚对双层非充气塑料薄膜保温效果的影响进行了分析。结果表明：（1）结露对双层塑料薄膜保温性能存在不利的影响，结露时间早，温室内最低温度比结露时间晚时有所低，但幅度不大。（2） 双层塑料薄膜的保温性能与夹层内空气的相对湿度有关，空气相对湿度增大时，保温性能降低。

Test and Analysis of Dew Having an Effects on Heat Preservation Capability of Double-plastic Greenhouse

Dew phenonmena is popular in greenhouse. In this experiment,the indoor lowest temprature that coagulated dew naturally and manually in double-plastic greenhouse were tested, contrasted with outdoor.The heat preservation effecttion were analyzed due to the time of coagulated dew was early or late in the greenhouse. The results show that:(1)coagulating dew have disadvantaged affection to heat preservation of double-blastic greenhouse.That is,the indoor lowest temprature which coagulated dew manually is lower than that naturally some how.But the range is a little.(2)The heat preservation effection of double-plastic greenhouse relates with the relative humidity of the air between two layer plastics.It delined go with the relative humidity of air raising.