基于热湿分区的全空气空调系统变新风量节能分析  

Energy Saving Analysis of Fresh Air Volume in All-Air Air-Conditioning System Based on Heat and Humidity Division

作　　者：谷伟 彭章娥 Gu Wei;Peng Zhang e(College of Urban Construction and Safety Engineering,Shanghai Institute of Technology)

机构地区：[1]上海应用技术大学城市建设与安全工程学院

出　　处：《上海节能》2020年第2期116-122,共7页Shanghai Energy Saving

基　　金：上海应用技术大学基金资助基金编号：27220H190035-A06-J2019-35

摘　　要：现代公共建筑的大量增加和全空气空调系统的普遍应用,促使公共建筑能耗大幅增加。基于变风量运行的原理,首先对空气状态进行分区,然后对各区进行详细的运行策略分析。建立了一个定风量系统的房间模型,计算其全年逐时负荷,从而确定送风状态点的全年变化趋势。基于Open-Studio软件,模拟分析4月中上旬至6月上旬、10月下旬至11月上旬是新风量利用潜力最高的时段,且在1月初至7月中旬、11月上旬至12月末时加湿量都明显降低。当新风比可调时,全年的湿负荷、热负荷、冷负荷均减少59.05%、35.54%和12.12%,全空气空调系统在变新风比运行时节能效果十分明显。The massive increase of modern public buildings and the universal application of all-air air-conditioning systems have greatly increased the energy consumption of public buildings.In this paper,based on the principle of variable air volume operation,the air state is divided into zones first,and then detailed operation strategy analysis is performed for each zone.Finally,a room model with a constant air volume system is established,and its hourly load is calculated throughout the year,so as to determine the year-round change trend of the air supply status point.The Open-Studio software simulates and analyzes the periods when the potential for fresh air utilization is the highest in early April to early June,late October to early November,and from early January to mid July,early November to late December.The amount of humidification is significantly reduced.When the fresh air ratio is adjustable,the wet load,heat load,and cold load are all reduced by 59.05%,35.54%,and 12.12%throughout the year.Therefore,the energy saving effect of the all-air air-conditioning system when changing the fresh air ratio is very obvious.

关 键 词：全空气空调系统节能 变新风比 空调分区 新风量最佳调节 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]