大空间建筑空调与混合通风联合运行设计与节能研究

摘要

提出了广州地区大空间建筑的集中空调与混合通风系统联合运行策略，并指出系统的适用条件。对热压通风及机械排风辅助式热压通风在大空间内的温度和速度场进行数值模拟，获得混合通风下温度和风速的拟合式子。同时，以广州5，6，10月的逐时干球温度为依据预测其策略下的混合通风潜力。通过应用DeST软件模拟了全年冷负荷并进行通风空调设备运行能耗计算，可知在指定开口形式下运用空调与混合通风联合运行，最大节能率可达61．6％。%Presents a combined operation strategy of air conditioning and hybrid ventilation system suitable for the large space building in Guangzhou and points out its applicable condition.Simulates the temperature field and wind speed field under hybrid ventilation and gets regression formula of temperature and wind speed.Also, potential of hybrid ventilation was predicted according to hourly dry-bulb temperature data in May, June and October of typical meteorological year in Guangzhou.The maximum energy conservation rate can be reached to 61.6%with using the strategy in specify opening form by simulating the cooling load by DeST software and analyzing energy consumption of equipments.