太阳能叉流液体除湿空调再生热质传递稳态实验  

Heat and mass transfer experiments of regenerator in solar-driven cross-flow liquid desiccant air conditioning

作　　者：高文忠[1,2] 柳建华[2] 章学来[1] 

机构地区：[1]上海海事大学商船学院,上海201306 [2]上海理工大学能源与动力学院,上海200093

出　　处：《化工学报》2011年第10期2747-2752,共6页CIESC Journal

基　　金：国家自然科学基金项目(50976064);上海海事大学科研基金项目(20110034)~~

摘　　要：再生器是太阳能液体除湿系统的核心设备,其效率直接影响整个系统的性能。分析了再生器出口参数由进口参数和效率直接获得的可行性,并建立叉流液体再生系统,采用氯化锂为再生溶液,Celdek填料为热质交换介质,实验测试溶液和空气进出口参数对再生器全热效率和湿度效率的影响规律,并进行线性回归,结果表明:全热效率主要受溶液流量、温度以及空气流量、温度和含湿量的影响;湿度效率和溶液流量、温度、浓度以及空气流量关联性强,与其他变量关系很小;线性回归方程计算结果和实验结果误差基本在20%以内,可通过进口参数预测出口状态。Regenerator is one of the core components in a liquid desiccant air-conditioning system driven by solar energy, and its efficiency directly affects the performance of the system. The feasibility to obtain outlet parameters for the regeneration from its efficiency and import parameters was analyzed, and a cross- flow regenerator was established, in which LiC1 solution and Celdek structured packing were used. gnthalpy efficiency and moisture efficiency were adopted to describe the heat and mass transfer performance of the regenerator. Influences of desiccant and air inlet parameters on the regenerator performance were experimentally investigated. The results show that the enthalpy efficiency is mainly affected by the flow rate and temperature of the solution, and the flow rate, temperature and moisture content of air. The moisture efficiency depends on the flow rate, temperature and concentration of the solution as well as the flow rate of air, but has little relationship with other variables. The error between the linear regression equation and experimental data is less than 20%. Thus the outlet state can be predicted from inlet parameters.

关 键 词：叉流再生器 传热传质 全热效率 湿度效率 

分 类 号：TQ028.8[化学工程]