双温冰箱压缩/喷射式混合制冷循环系统的设计和实验研究

Design and Experimental Study of Compression/Injection Hybrid Refrigeration System for Domestic Double Door Refrigerators

喷射器的性能、系统运行的稳定性是压缩／喷射式混合制冷循环能否成功地应用于双温冰箱的关键．本文对小型喷射器的设计计算及加工方案和混合循环制冷系统的设计方案进行了细致的理论分析和实验研究．实验结果显示了喷射器的增压作用和混合循环的节能作用；同时，说明了小型喷射器的简化加工方案是可行的，两个蒸发器串联设计的混合循环制冷系统是一种变工况适应能力强。

The performance of the ejector and the operational stability of a refrigeration system are the key problems for practical application of the compression/injector hybrid refigeration system to domestic double door refirigerators. This paper presents the theroretical design analysis of the ejector and refrigeration system. The description of the experimental systems are salso given. The capability of energy saving of the experimental hybrid refrigeration system was proved, so the practicability of the suggested design method is validated. Moreover, it is shown that the hybrid cycle with two evaporators in series is a more suitable energy saving technique for domestic refrigerators because of its good adaptability to changing operational conditions.