【作者】 王寒栋； 侯志坚； 詹勋良；

【Author】 Handong Wang, Zhijian Hou, Xunliang Zhan (Department of Building Equipment Engineering, Shenzhen Polytechnic, Shenzhen 518055, Guangdong, China)

【机构】 深圳职业技术学院楼宇装备工程系；

【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COP在0.11～0.55之间。更多还原

【Abstract】 Based on taking the gas heat exchanger, absorber and evaporator as one unit, mathematical models for the diffusion-absorption refrigerator (DAR), the main equipment of integrated fridge and air-conditioner (IFAC) were given and calculations were carried out to simulate its characteristics and performance. The results showed that, in order to met the lower evaporating temperature requirement, the performance of DAR or IFAC greatly depended on the temperatures of condenser, absorber and generator. With taking into account of the influence of some main parameters such as condensing temperature (Tc), absorbing temperature (Ta), generating temperature (Tg), efficiency of solution heat exchanger and solution circulation ratio, etc as well as the available hot water produced by solar energy heat collectors, the operation parameters of DAR or IFAC were determined as Te=-20～-15℃, Tc=Ta=25～30℃, Tg= 80～95℃, and the corresponding COP varied from 0.11 to 0.55.更多还原