集中空调系统各环节温差及提高性能的途径分析  

Analysis on temperature differences and performance improvement of central air conditioning systems

作　　者：张涛[1] 刘晓华[1] 江亿[1] 

机构地区：[1]清华大学

出　　处：《暖通空调》2011年第3期22-28,共7页Heating Ventilating & Air Conditioning

基　　金：国家自然科学基金资助项目(编号:51006058);高等学校全国优秀博士学位论文作者基金资助项目

摘　　要：从换热温差的角度分析了常规集中空调系统各环节的特性,研究了换热温差对空调系统投入的换热面积、输配能耗和制冷机组能耗等的影响。根据显热、潜热负荷的不同特点介绍了温湿度独立控制空调系统的理念,并分析了温湿度独立控制系统各环节中的温度分布情况。介绍了进一步提高新风处理过程性能及温度控制系统性能的方法,以某办公建筑为例分析了采用不同形式的集中空调系统方案时在换热温差、系统性能等方面的差异。Analyses the characteristics of conventional central air conditioning systems from the perspective of heat exchange temperature differences,studies the influences of temperature difference on the heat exchange area,transmission and distribution energy consumption and chiller energy consumption.Based on the characters of sensible and latent heat loads,presents the concept of temperature and humidity independent control system,and analyses its temperature differences in different segments.Indicates the methods of improving the performance of fresh air handling process and temperature control process,and analyses the difference of different central air conditioning systems in heat exchange temperature difference and system performance with an office building case study.

关 键 词：换热温差 空调系统 温湿度独立控制 分级 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]