新型逆流式露点间接蒸发冷却器性能研究  

Study on the performance of a new counter flow dew-point indirect evaporative cooler

作　　者：陆刘记 甘辛欣 杨雅浓 吴学红[1] 赵敏[1] 朱有健[1] 

机构地区：[1]郑州轻工业学院能源与动力工程学院,郑州450002 [2]机械工业第六设计研究院有限公司,郑州450007

出　　处：《低温与超导》2017年第5期79-85,共7页Cryogenics and Superconductivity

基　　金：国家自然科学基金资助项目(51476148);河南省杰出青年基金项目(154100510014);河南省教育厅创新团队项目(17IRTSTHN029)资助

摘　　要：提出了一种新型的逆流式露点间接蒸发冷却器,研究了进气的相对湿度、温度变化对其冷却(湿球)效率的影响。结果显示:相对湿度和温度的变化对冷却器的冷却(湿球)效率具有显著的影响,较低的相对湿度和温度能获得较高的冷却(湿球)效率,所有运行条件下的冷却(湿球)效率超过100%。当环境温度为303.15K,相对湿度为10%时,冷却器的效率最高为128.5%,表明冷却器具有较好的降温效果;改进后的结构相比较原始结构,进口压力降低1.107%,产气温度降低了0.314K。A new counter flow dew point indirect evaporative cooler was proposed and the influence of inlet relative humidity and temperature （wet bulb） on cooling efficiency was investigated. The results show that the relative humidity and temperature have significant effect on the cooling （wet - bulb） efficiency of cooler. The low relative humidity and temperature can obtain higher cooling efficiency for wet - bulb. The cooling efficiency is over 100% under all operating condition. When the environmen- tal temperature is 303.15K and relative humidity is 10% ,the best cooling efficiency（ 128.5% ） is obtained. It indicates that the cooler has a good cooling effect. Compared with the original structure, the inlet pressure of improved structure reduces 1. 107% and product -air temperature reduces 0. 314K.

关 键 词：蒸发冷却 逆流 露点温度 板翅式换热器 

分 类 号：TQ051.5[化学工程]