摘要
在分析蒸发器性能对冷水机组性能影响的基础上,探讨降膜式蒸发器的关键技术,并通过试验研究降膜式蒸发器的换热系数和回油浓度,同时与满液式蒸发器的换热性能进行对比。结果表明,在分配器供液充足时,降膜管束蒸发性能优势显著,表现在换热系数高、回油浓度高等方面。
The influences of evaporator＇s performance on water chiller＇s performance are analyzed. Based on it, the key technologies of falling-film evaporator are discussed. Meanwhile, the heat transfer coefficient and oil concentration in the falling-film evaporator are experimentally sludied and compared with flooded evaporator. The results show that when the fluid supply from the distributor is sufficient,the falling-film evaporator has bet- ter performance, which has higher heat transfer coefficient, large oil concentration, etc.
出处
《制冷与空调》
2014年第4期113-116,130,共5页
Refrigeration and Air-Conditioning
基金
住房和城乡建设部科技计划项目(2013-K1-22)
关键词
冷水机组
蒸发器
全降膜
满液式
换热系数
油浓度
water chiller
evaporator
full falling-film
flooded
heat transfer coefficient
oil concentration
