两级转轮除湿冷水系统性能研究.doc

文档介绍：中国工程热物理学会传热传质学
学术会议论文编号:123648
两级转轮除湿冷水系统性能研究
何海斌,李勇,Sindre Pettersen,李慧,代彦军
(上海交通大学制冷与低温工程研究所,上海,200240)
(Tel:[phone] Email: ******@sjtu.)
摘要:本文针对一种转轮除湿和再生式蒸发冷却相结合来实现干空气和冷冻水联产的除湿空调系统性能。通过对系统各部件的性能分析,研究了新风进行预冷后系统除湿及冷冻水制取性能的变化,实验结果表明,在上海典型的高湿环境下预冷与不预冷两种运行条件下系统的除湿量分别为9g/,进出口焓差为4kJ/kg,可见此种条件下预冷对系统的除湿能力和制冷效果的影响不大。同时,在环境条件为30oC,,对系统运行性能进行测试,测试表明系统能连续的提供18oC左右的冷冻水,,电力COP为4~8之间。
关键字:转轮除湿;蒸发冷却;预冷;冷冻水
中图分类号: 文献标志码:A
Case study of a two-stage rotary ant cooling system
He Haibin, Li Yong, Sindre Pettersen, Li Hui, Dai Yanjun
(Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240)
(Tel:[phone] Email:******@sjtu.)
Abstract: This article explores the performance of a novel open ant cooling cycle incorporating close-to isothermal dehumidification of air and regenerative evaporative cooling to produce chilled water. Through the analysis of different performance indexes the performance of the various ponents are evaluated. Changing the operation conditions such as air flow rate or the cooling water mass flow to the pre-cooling heat exchanger gives experimental results that indicate when the system has the best performance. The system performance with and without the pre-cooling heat exchanger is tested during ARI humid conditions with an average ambient temperature of ˚C and an average relat