纯工质HFC-134a冰箱的研究

A Research on Refrigerator Using HFC 134a

本文用两种不同的理论模型预测了HFC-134a冰箱的热工性能和工质充灌量,并用国产HFC-134a进行了冰箱整机试验。同时还用CFC-12和HFC-152a/HCFC-22作了对比计算和试验。试验结果表明,在冰箱结构基本不变的条件下,采用国产HFC-134a的冰箱热工性能和安全性能均达到国家标准要求,试验结果与预测结果吻合良好。

In this paper, refrigeration performance and the charged amount of refrigerant in a refrigerator using HFC-134a were predicted by means of two different theoretical models, and experiments were carried out on a refrigerator system using HFC-134a produced by China. Simultaneously comparative calculation and experiments were proceeded with CFC-12 and HFC-152a/HCFC-22. The results demonstrate that the National Standard, if using HFC-134a manufactured by China, can be reached in respects of refrigeration performance and safety performance on condition of refrigerator's structure being basically unchanged. They also show that experimental results agree well with predicted ones.