新型双温驱动吸收制冷循环性能  

Experimental Study on Performances of a New Absorption Refrigeration System Driven by Double Low-grade Energy

作　　者：何丽娟[1] 朱超群[1] 杨彬[2] 王丽芳[1] 张少华[2] 肖卓楠[1] 

机构地区：[1]内蒙古科技大学能源与环境学院,包头014010 [2]内蒙古科技大学包头师范学院,包头014030

出　　处：《制冷学报》2016年第2期59-64,共6页Journal of Refrigeration

基　　金：国家自然科学基金(51106068&51566014)资助项目;内蒙古自然科学基金(2015MS0547);产学研基金(PY-2012)项目资助~~

摘　　要：针对跨临界CO_2压缩制冷系统制取冷量以消耗高品位能量为代价的问题,本文依据能量梯级利用原理,提出双温低品位热源驱动的新型CO_2-[emim][Tf_2N]吸收式制冷循环的新流程,在构建该制冷循环数学模型的基础上,搭建测试双温驱动吸收制冷循环性能的实验装置,利用模拟和实验方法分析了操作参数对系统性能的影响规律。在定流量的条件下,研究驱动热源温度、冷却水入口温度以及载冷剂入口温度等操作参数对新系统性能的影响规律,结果表明双温驱动新型吸收制冷系统不仅可实现高效制冷,而且最低制冷温度可达到-15.2℃,研究结果为CO_2-离子液体制冷系统的理论设计计算提供实用的数据基础。To solve the problem caused by transcritical CO_2 compression refrigeration system,a new absorption refrigeration system driven by double low-grade energy was presented based on the principle of energy cascade utilization. Based on mathematical model for each component of the system,an experimental equipment driven by the double low-grade energy were developed. The effect of operating parameters,such as hot source temperature,cooling water inlet temperature and cooled medium,on the system performances had been investigated under constant flow rate. The results showed that the new absorption refrigeration system owned a higher COP and the lowest refrigeration temperature- 15. 2 ℃ under the same experimental conditions. The study results are helpful to the optimal design.

关 键 词：双温低品位热源 CO2-[emim][Tf2N] 吸收制冷系统 传热传质 系统性能 

分 类 号：TB616[一般工业技术—制冷工程] TB612