复合式三效溴化锂吸收式制冷循环特性分析  

Characteristic Analysis of Hybrid Triple-effect LiBr/Water Absorption Refrigeration Cycle

作　　者：胡磊 王晓[1] HU Lei;WANG Xiao(School of Energy and Environment, Southeast Universit)

机构地区：[1]东南大学能源与环境学院

出　　处：《建筑热能通风空调》2018年第4期1-5,共5页Building Energy & Environment

摘　　要：目前限制三效溴化锂吸收式制冷的主要问题是高温溴化锂溶液腐蚀性太强,有学者提出复合式三效溴化锂制冷循环来降低高温发生器出口溶液温度。本文对三效和复合式三效溴化锂吸收式制冷循环进行了介绍,并对两种循环进行了模拟分析。计算压缩比和冷媒水温度对系统性能系数和高温发生器出口溶液温度和压力等方面的影响,结果表明复合式三效循环能有效的降低高温发生器出口溶液温度。当压缩比为3.5时,高温发生器出口溶液温度由218.9℃降低到183.6℃,此时压缩机耗功仅占制冷量的3.68%。At present, the main problem of limiting the triple-effect LiBr/Water absorption refrigeration is that the high temperature LiBr/Water solution corrosion is strong, so hybrid triple-effect LiBr/Water refrigeration cycle was proposed by some scholars to reduce the temperature of high temperature generator outlet solution. In this paper, the triple-effect and hybrid triple-effect LiBr/Water absorption refrigeration cycle are introduced and simulated. The effect of compression ratio and chilled water temperature on cycle＇ s performance coefficient, pressure and temperature of high temperature generator outlet solution were calculated, The results show that the hybrid triple-effect cycle can effectively reduce the temperature of the high temperature generator outlet solution. When the compression ratio is 3.5, the temperature of the high temperature generator outlet solution is reduced from 218.9℃ to 183.6℃, and the compressor power consumption accounts 3.68% of the cooling capacity.

关 键 词：复合式 三效 溴化锂 压缩比 

分 类 号：TB61[一般工业技术—制冷工程] TU83[建筑科学—供热、供燃气、通风及空调工程]