两级溴化锂吸收式制冷机的变工况性能实验  

Performance investigation on double-lift LiBr absorption refrigerator in variable conditions

作　　者：姚远[1,2] 王显龙[1,2] 田永军[1] 

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]中国科学院可再生能源与天然气水合物重点实验室,广州510640

出　　处：《低温工程》2013年第3期21-25,42,共6页Cryogenics

基　　金：国家科技支撑计划项目地热资源综合梯级利用集成技术研究(2012BAB12B00)资助

摘　　要：介绍了自主研制的350 kW两级溴化锂吸收式制冷机,并对该机组进行了4种变工况条件下的性能测试。分别通过改变冷媒水出口温度,冷却水进口温度,热水进口温度和热水流量来测试该制冷设备在以上4种常见变工况的外界条件下,其制冷量和热力系数(COP)的变化趋势。该实验结果显示,在设计值上下20%的变化范围内,随着冷媒水出口温度和热水进口温度的升高,热水流量的加大以及冷却水进口温度的降低,机组制冷量和热力系数(COP)均会得到提高。The dependent development of 350 kW DL（Double-Lift） LiBr absorption refrigerator was introduced and experiments were done on the refrigerator in four kinds of variable conditions,which were respectively change in temperature of chilled water（outlet）,change in temperature of cooling water（inlet）,change in temperature of heat water（inlet） and change in flow rate of heat water.The experimental results show that,in the design value variation range of about 20%,with the increase of the chilled water outlet temperature and inlet temperature of hot water,and the increase of hot water flow,and lowering inlet temperature of cooling water,refrigerating capacity and coefficient of performance（COP） is improved.

关 键 词：两级吸收 变工况 制冷量 热力系数 

分 类 号：TB651[一般工业技术—制冷工程]