技术中心

水冷式表冷器传热研究(5):用盘管表面平均温度法计算表冷器湿工况 【英文篇名】 Heat transfer study of surface air coolers(5): Thermodynamic calculation of air coolers under wet cooling conditions with mean coil surface temperature 【作者中文名】 王晋生; 【作者英文名】 BY Wang Jinsheng ★?PLA University of Science and Technology; China; 【作者单位】 解放军理工大学; 【文献出处】 暖通空调, Hv 热力计算; 湿工况; 盘管表面平均温度; 【英文关键词】 surface air cooler; thermodynamic calculation; wet cooling condition; mean coil surface temperature; 【摘要】 根据盘管表面平均温度 ,把湿工况下表冷器的传热过程分为空气与盘管表面水膜之间以焓差为推动力的传热和盘管与冷却水之间以温差为推动力的传热。在此基础上提出了表冷器湿工况热力计算新方法———盘管表面平均温度法 ,通过实验验证此法计算结果可以满足空调常用范围内需要的计算精度 【英文摘要】 According to mean coil surface temperature divides the heat transfer of water cooled surface air coolers under wet cooling conditions into two parts. One is heat transfer between air and water layer outside of coils, the other is that between coils and cooling water inside coils. Puts forward a new thermodynamic calculation method-the mean coil surface temperature method. Experiments validates the calculating precision in common range of design conditions.