太阳能与天然气驱动的冰箱空调复合机研究(Ⅱ)——性能模拟  

Integrated Multi-Functional Refrigeration System Driven by Solar Energy and Natural Gas:Performance Simulation

作　　者：王寒栋[1] 侯志坚[1] 詹勋良[1] 

机构地区：[1]深圳职业技术学院 楼宇装备工程系,广东深圳518055

出　　处：《深圳职业技术学院学报》2009年第3期3-7,共5页Journal of Shenzhen Polytechnic

基　　金：深圳市科技基金资助项目(06K026FC)

摘　　要：在将气体热交换器、吸收器和蒸发器视为一个整体的简化基础上,对复合机中的主要设备——扩散吸收式制冷机建立了平衡状态下的数学模型,并进行了性能模拟.模拟结果表明,为满足较低蒸发温度的要求,复合机所采用的扩散吸收式制冷机的性能在很大程度上依赖于冷凝温度、吸收温度和发生终了温度.通过对性能影响因素如冷凝温度、吸收温度、发生温度、溶液热交换器效率、溶液循环倍率等的分析,结合利用太阳能的设备条件,确定复合机的合适运行温度为:蒸发温度-20--15℃、冷凝温度和吸收温度25-30℃、发生终了温度80-95℃,其对应的制冷性能系数(COP)在0.11-0.55之间.With gas heat exchanger, absorber and evaporator taken as one unit, mathematical models for diffusion-absorption refrigerator （DAR）, the main body of integrated fridge and air-conditioner （IFAC）, were given and calculations were carded out to simulate its functions and performance. The results show that, in order to adjust to low evaporating temperature, performance of DAR or IFAC greatly depended on temperatures of condenser, absorber and generator. Taken into consideration of influences of main parameters such as condensing temperature （Tc）, absorbing temperature （Ta）, generating temperature （Tg）, efficiency of solution heat exchanger and solution circulation ratio, and hot water produced by solar energy heat collectors, operation parameters of DAR or IFAC were determined at Te -20--15℃, Tc and Ta at 25-30℃, Tg at 80-95℃, and corresponding COP ranged from 0.11 to 0.55.

关 键 词：扩散吸收式制冷机 冰箱空调复合机 太阳能 天然气 模拟 

分 类 号：TK519[动力工程及工程热物理—热能工程]