南方地区某开敞式大空间空调系统节能设计

Air conditioning energy efficiency design for a large open building in south China

南方地区开敞式大空间建筑寥寥无几,且一般不设空调。以广州某开敞式演艺广场加装空调为例,介绍了室内外设计参数的选择、空调负荷计算和空调系统的确定及其优化。根据该工程开敞式特点及夜间使用的特殊性,调整室内外设计参数,减少设备的装机容量,并根据送风温度选用蒸发式冷凝螺杆高温冷水机组,同时采用高效风机、水泵等设备,系统实测EER达到5.05,室内环境得到改善,整体节能效果达到设计要求。

Large open buildings are very few in south China,and generally they are not air conditioned.Taking a large open show building needed to add air conditioning in Guangzhou as an example,presents the selection of the indoor and outdoor design parameters,calculation of the air conditioning load and determination and optimization of the air conditioning system.According to the characteristics of open type and the particularity of usage at night,adjusts the indoor and outdoor design parameters,and decreases the installed capacity of equipment.Based on the air supply temperature,selects high temperature evaporation condensation screw water chillers.At the same time,adopts high effect fans,water pumps and other equipment.After actual measurement,the EER of the system reaches up to 5.05,the indoor environment is improved,and the energy saving effect meets the design requirement.