摘要
通风对调节温室内小气候有重要作用。试验通过对温室内、外共10个观测点不同高度风速的测量分析，研究了西北型节能日光温室内的风速分布规律及室外风速与通风面积对室内风速的影响。结果表明，西北型节能日光温室中的风速日变化呈双峰曲线；风速在水平方向上的分布山东到西差异小大，由南至北呈V字型分布；温室内的风速折减率随高度的增加而增加；室内温升值随通风面积的增大而减小。西北型日光温室最佳通风面积比是18％～25％。
Ventilation is important in regulating the microclimate in the greenhouse. The study on ai speed distribution in the energy-saving sunlight greenhouse of northwest type is carried by analyzing 1 different points in the greenhouse in this paper. The result shows that the daily curve of air speed is a double apex curve）air speed inside has no significanct difference from east to west）it presents V shape curv distribution from the south to north of the greenhouse）and the reduced rate risesed with the height. Th optimal ventilation area ratio is 18%-25%.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2006年第9期36-40,共5页
Journal of Northwest A&F University(Natural Science Edition)
关键词
西北型
日光温室
风速
自然通风
Northwest type
sunlight greenhouse
wind speed
ventilation
