摘要
华东地区夏季高温高湿,严重制约了室内作物的正常生长和发育。遮阳网上喷雾降温利用将细雾喷洒在遮阳网和拱顶之间的高温区、水在蒸发过程中吸收大量热量、未完全汽化的雾滴落在遮阳网上形成二次蒸发散热的原理,使降温效果进一步提高。试验表明在温室内空气湿度增大不多的情况下,可有效地将温室内气温下降到低于室外气温0.6°～2℃,降幅可达3°～5℃左右,并且温度分布均匀。
The high temperature and moisture in the summer of China East seriously restricts the normal growth and development of indoor crops. The spraying cooling on the solar screen makes use of the fact that after spraying fogdrops on the high temperature area between the solar screen and vault, the water will absorb great amount of heat during evaporation and those not fully vaporized fogdrops drop on the solar screen again and make the second evaporation to further improvet h ecooling effect. Experiment shows that the increase of air moisture is not much in the greenhouse, however, it can effec tively decrease the indoor temperature 0.6 - 2 ℃ lower than the outdoor temperature. The decreasing can reach about 3 -5℃, and moreover the temperature distributes uniformly.
出处
《农机化研究》
北大核心
2003年第2期46-47,52,共3页
Journal of Agricultural Mechanization Research
关键词
华东型连栋塑料温室
夏季
遮阳网
喷雾降温
试验研究
the horticulture learns
multi-span greenhouse
experimental research
spraying cooling
solar scree
