摘要
提出一种将吸收式循环和压缩式循环深度耦合的新型机组,解决以溴化锂溶液为工质的吸收式制冷机无法制取0℃以下冷却盐水的技术难题。首先分析耦合机组的循环原理,其次建立各部件数学模型以构建其系统稳态模型,通过设备仿真揭示耦合循环双相变换热器蒸发冷凝温度、水蒸气压缩机压比和盐水出口温度对制冷机性能的影响规律,最后与常规电制冷机进行经济性对比。计算结果表明,耦合循环具有良好的循环性能和经济性,因而在工业节能减排领域具有较好的应用前景。
A new hybrid cycle is presented here,which combines absorption and compression cycles at the same time.This hybrid unit could meet different cooling requirements by using lithium bromide solution and Freon. The mathematical model of hybrid unit is built firstly,and influence on COP caused by temperatures of double phase change heat exchanger,pressure ratio of steam compressor,outlet temperature of cooling water are analyzed. The analysis results indicate that the hybrid unit has very good cycle performance and economics,which shows that it could be quite promising for industrial heat recovery due to obvious advantages.
作者
孙健
马世财
霍成
戈志华
杜小泽
杨勇平
Sun Jian;Ma Shicai;Huo Cheng;Ge Zhihua;Du Xiaoze;Yang Yongping(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2020年第10期375-380,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51606061)
国家重点研发计划(2017YFB0602105)。
关键词
热泵系统
余热回收
吸收式制冷
耦合系统
换热器
heat pump systems
heat recovery
absorption cooling
hybrid systems
heat exchangers
