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Wind and Temperature Induced Pressure Differentials and an Equivalent Pressure Difference Model for Predicting Air Infiltration in Schools 风和温度引起的压差和预测学校空气渗透的等效压差模型
测量了两所学校外墙的风致压差;一个被房屋和树木包围,另一个被部分挡风。这些学校是从11所学校中挑选出来的,这些学校的漏风特性此前已经过研究。分析了测量的外墙压差,并计算了相应的空气渗透率。这些用于评估由风引起的等效均匀压差。同样,还使用计算机模型计算了由烟囱作用引起的等效均匀压差。结果表明,这些等效压差可以相加,并与通过风扇增压方法获得的空气泄漏数据一起用于预测不同风和烟囱作用条件下的学校空气渗透率。 引文:加利福尼亚州洛杉矶ASHRAE Transactions第86卷第1部分
Wind induced pressure differences have been measured across the exterior walls of 2 schools; one is surrounded by houses and trees and the other is partially shielded from wind. These schools were selected from a total of 11 schools whose air leakage characteristics had been previously studied.The measured pressure differences across the exterior walls were analyzed and the corres­ponding air infiltration rates were calculated. These were used to evaluate the equivalent uniform pressure differentials caused by wind. Similarly, the equivalent uniform pressure differentials caused by stack action were also calculated using a computer model. It was shown that these equivalent pressure differentials could be summed and used with the air leakage data obtained by fan pressurization method to predict air infiltration rates for schools under various conditions of wind and stack action.
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