带有冷变换器的双压缩机耦合冰箱  

A two-combined-compressor refrigerator/freezer with cooling transformer

作　　者：唐黎明[1] 周苏明[1] 陈光明[1] 陈琪[1] 

机构地区：[1]浙江大学制冷与低温研究所,浙江杭州310029

出　　处：《浙江大学学报（工学版）》2013年第11期1983-1986,2045,共5页Journal of Zhejiang University：Engineering Science

基　　金：国家"973"重点基础研究发展计划资助项目(2010CB227304);钱江人才计划资助项目(2012R10030)

摘　　要：为提高冰箱的节能性能,提出一种新型双压缩机耦合冰箱,该冰箱在传统的双压缩机双循环冰箱的基础上增加一个冷变换器.冷变换器能将冷藏循环中部分低品位冷量转换为冷冻循环中的高品位冷量,提高冰箱的性能系数.文中对新型冰箱进行理论能耗分析和引入贡献率、压缩机效率等影响因素的模拟计算,结果表明:在国家标准测试工况下,带冷变换器的双压缩机耦合冰箱比普通双压缩机双循环冰箱的性能系数提高9.98%,比蒸发器串联单循环冰箱的性能系数提高13.38%.To improve the energy saving performance of refrigerator/freezers （RFs）, a new two-combined- compressor RF was put forward by adding a cooling transformer （CT） into conventional two-compressor two-circuit cycle RFs. The CT can transform part of refrigerator-cycle （R-cycle） low-grade cooling capaci- ty into freezer-cycle （F-cycle） high-grade cooling capacity, then improve the RF＇s coefficient of perform- ance （COP）. Theoretical energy consumption was analyzed, influence factors such as the transformation ratio （TR） and compressor efficiency were taken into consideration in the process of simulated calculation. The result shows that： when the condensation temperature is 32 C, storage temperatures is --5 ~C and freezing temperature is --25C , COP of two-combined-compressor RFs with cooling transformer can be improved 9.98% compared with COP of two-compressor two-circuit cycle RFs,while compared with COP of evaporator in series cycle RFs, the improvement rate is 13.38%.

关 键 词：冰箱 冷变换器 双压缩机 节能 

分 类 号：TB657.4[一般工业技术—制冷工程]