气候条件对高效蒸发式冷凝机组性能的影响  

Effect of Climatic Conditions on Performance of Air Conditioning System with the Evaporative Condenser

作　　者：蒋翔[1] 朱冬生[1] 钟朝安[2] 

机构地区：[1]华南理工大学,广州510640 [2]华南理工大学建筑设计研究院,广州510640

出　　处：《制冷学报》2008年第1期33-38,共6页Journal of Refrigeration

基　　金：教育部博士点基金(20050561017);粤港关键领域重点突破招标项目(TC05B372-8);广州市科技成果转化项目(2007C13G0041)资助)

摘　　要：结合建筑空调系统节能、节水和机组化的要求，将蒸发式冷凝器应用于建筑空调制冷机组，以理论分析为基础，实验研究了空气湿球温度和相对湿度对空调机组性能的影响及作用机理，比较了气候条件对制冷机组性能的影响，结果表明，湿球温度从16℃至28℃，机组制冷量和能效比分别减小5．1％～7．1％和18．3％～22．5％；相对湿度从54％至90％，制冷量和能效比分剧减小1．8％～3．8％和4．1％～9．8％；机组能效比为4．54～6．11，高于风冷和水冷式机组；气候对能效比影响的日差异为5％～12％，夏季的南北地区气候差异影响不超过10％，部分丰要城市的差异则不超过8％。The influences of air wet-bulb temperature and relative humidity on the performance of an air conditioning system with an evaporative condenser were examined experimentally. The results indicate that when air wet-bulb temperature was from 16℃ to 28℃, the system refrigerating capacity decreased by 5.1%-7.1% and the energy efficiency ratio decreased by 18.3%-22.5%. When air relative humidity was from 54% to 90%, the system refrigeration capacity decreased by 1.8%-3.8% and the energy efficiency ratio decreased by 4.1%-9.8%. The energy efficiency ratio ranged 4.54-6.1 l, higher than that of a refrigeration system using an air-cooled condenser or a water-cooled condenser. In addition, the energy efficiency ratio of the refrigeration system with the evaporative condenser ranged from 5% to 12% in one day, and no more than 10% in summer for most zones and 8% for main cities in China.

关 键 词：热工学 制冷窄调 节能节水 蒸发式冷凝器 气候条件 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TU831[动力工程及工程热物理—热能工程]