太阳能吸收式制冷系统的分析

Exergy-based Performance Analysis of Solar Absorption Cooling System

对太阳能溴化锂吸收式制冷系统进行了效率和损系数分析。借助于模拟软件,建立太阳能吸收式制冷系统的物理模型,研究PTC集热器开口面积、冷却水进水温度、冷媒水出口温度等因素对系统冷量、普遍效率及各部分损系数的影响。研究结果得出太阳能集热器对系统的效率影响最大,冷媒水出口温度对系统性能的影响微小。

Exergy efficiency of the solar double-effect absorption cooling system are analyzed.The stationary state mathematical model of double-effect Lithium Bromide-water Refrigerator is established.A model of the system is set to discuss the influence of the solar parabolic trough collector area,the temperature of the inlet cooling water and the temperature of the outlet chilled water to the cold exergy,general exergy efficiency and exergy loss coefficient.Is concluded that solar collector make the largest influence on the system′s exergy efficiency.