摘要
为探讨竖直壁面在较高冷源温度下同时进行供冷除湿的可行性,开展了自然对流条件下基于中空纤维膜的竖直壁面供冷除湿特性的实验研究。利用中空纤维膜接触器技术制作了能够同时除湿供冷的组件,搭建了供冷除湿性能测试实验台,以氯化钙溶液为除湿溶液,采用正交试验方法,研究了自然对流下溶液进口质量浓度、温度、流速等参数对中空纤维膜组件除湿量、显热供冷量以及除湿效率的影响。结果表明:溶液进口质量浓度和温度对除湿量、除湿效率有重要影响,进口温度和流速对显热供冷量影响较显著。在试验因素水平取值范围内,组件单位膜面积除湿量达5~14 g/h,显热供冷量为4~24 W,除湿效率为28%~65%,表明该组件具有一定的工程应用前景。
In order to find the feasibility of simultaneous cooling and dehumidification by vertical wall at a high cooling medium temperature, an experimental study on cooling and dehumidification properties of vertical wall based on hollow fiber membrane under natural convection was conducted. A non-direct contact non-quid dehumidification and cooling module employing hollow fiber membrane contactor technology was designed and fabricated. A test bench for cooling and dehumidification properties was built. With CaCl2solution as the dehumidification desiccant, the effects of inlet solution parameters, such as concentration, temperature and flow rate, on the dehumidification capacity, sensible heat cooling capacity and dehumidification efficiency of hollow fiber membrane module were studied. The results showed that the inlet concentration and temperature were major parameters that influenced the dehumidification property. Inlet temperature and flow rate were major parameters that influenced the sensible heat cooling property. Within the value range of test factor level, the dehumidification capacity per unit membrane area of the module was 5~14 g/h, the sensible heat cooling capacity was 4~24 W and the dehumidification efficiency was 28%~65%, indicating that this module was promising for engineering purpose.
作者
李锦航
张子含
刘江峰
张光玉
LI Jinhang;ZHANG Zihan;LIU Jiangfeng;ZHANG Guangyu(School of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China)
出处
《浙江理工大学学报（自然科学版）》
2023年第1期124-130,共7页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
浙江省自然科学基金项目(LY22E060004)。
关键词
中空纤维膜
溶液除湿
供冷
自然对流
辐射供冷
hollow fiber membrane
solution dehumidification
cooling
natural convection
radiant cooling
