技术中心

【英文篇名】 New thermodynamic calculation method for surface air coolers: heat-exchange efficiency of waterside method 【作者中文名】 乐有奋; 王清平; 【作者英文名】 By Yue Youfen and Wang Qingping Tsinghua Tongfang Artificial Environment Co.; Ltd.; Beijing; China; 【作者单位】 清华同方人工环境有限公司; 【文献出处】 暖通空调, Hv 热工计算; 水侧热交换效率; 新算法; 【英文关键词】 surface air cooler; thermodynamic calculation; heat-exchange efficiency of waterside; new calculation method; 【摘要】 传统的表冷器热工计算方法如干球温度效率法和湿球温度效率法,一般以复杂的空气侧热湿交换为研究重点,在计算中作一些并不十分严密的简化处理,会降低计算的精度并在推导和使用中存在缺陷与不足;提出一种水侧热交换效率法,该方法将有显热交换的水侧作为研究重点,物理意义明确,数学推导严格,实验验证计算精度很好。 【英文摘要】 Traditional thermodynamic calculation methods, such as dry bulb temperature efficiency method and wet bulb temperature efficiency method, are based on the study of heat and mass transfer at air side. The calculation accuracy is not high because of simplified calculation way. There are some defects and shortages during deducing and using. Puts forward a new method, heat-exchange efficiency of waterside method, which is based on sensible heat exchange at waterside with definite physical meaning and strict mat...