两级式太阳能平板集热型再生器及其稳态性能分析  

A two-stage collector/regenerator for solar liquid desiccant air conditioning system and its stable performance analysis

作　　者：左远志[1,2] 杨晓西[2] 丁静[2] 

机构地区：[1]东莞理工学院东莞分布式能源研究中心,广东东莞523808 [2]华南理工大学传热强化与过程节能教育部重点实验室,广东广州510640

出　　处：《化工进展》2009年第2期222-225,共4页Chemical Industry and Engineering Progress

基　　金：广东省自然科学基金项目(7007732)

摘　　要：设计了一种介于开式与闭式集热型再生器之间、溶液流程分为集热再生段Ⅰ与集热再生段Ⅱ的两级式太阳能平板集热型再生器,并建立了稳态传热传质过程的数学模型,对采用氯化钙溶液的再生过程进行了计算分析。分析结果表明:处于层流流动状态且同等工况下,两级式集热型再生器的再生量比传统闭式集热型再生器大20%～30%。A two-stage collector/regenerator （C/R） for the solar liquid desiccant air conditioning system was presented, whose configuration was between the open-type and closed-type C/R and where the liquid desiccant flow-through process was divided into two stages： the regenerating stage I and regenerating stage Ⅱ. Then a stable heat and mass transfer mathematical model was developed to predict the performance of the device under various operating conditions and a numerical simulation was conducted by using calcium chloride as the desiccant. The results showed that when controlled in laminar flow and under the same operating conditions, a 20% to 30% increase of the water evaporation rate from the weak solution for the two-stage C/R could be achieved as compared to the traditional closed-type C/R.

关 键 词：溶液除湿空调 降膜 溶液再生 集热型再生器 

分 类 号：TK511.3[动力工程及工程热物理—热能工程]