日光温室空气湿度环境及除湿技术研究——Ⅱ.强制通风的降湿效果及效应

STUDIES ON AIR HUMIDITY ENVIRONMENT AND [WT4,4”HZ]HUMIDITY ELIMINATION IN SUNLIGHT GREENHOUSE ——Ⅱ. THE EFFECTS OF HUMIDITY ELIMINATION FORCING VANTILATION

本实验根据季节的变化 ,在日光温室内采用了不同的方式进行小风量强制通风实验 ,结果表明 :1.直接开启风机 ,由导风管送气 ,一小时内使空气绝对湿度降低 11hpa左右。 2 .加风筒开风机 ,由导风管送气 ,一小时内使绝对湿度降低 6 .5hpa。 3.关闭进风口 ,只由风机抽风 ,开风机 2 0分钟内 ,可使绝对湿度降低 4hpa。小风量强制通风 ,不但降低了室内空气湿度 。

As the season chenged, the experiment adopted different forced ventilation approached in sunlight greenhouse. The results of experiment are as following:1)Absolute humidity was reduced approximately 11 hpa after turning on fan for 1 hour; 2) Absolute humiduty was reduced approximately 6.5 hpa at the situation of ventilation with exhaust pipe for 1 hour; 3) After turning on the fan, the absolute humidity was reduced 4 hpa at the situation of only exhaust. The forced ventilation was not only reduced the air humidity in sunlight greenhouse, but also had its active signifcance to exhaust nullifying gas.