Development of High Efficiency Swing Compressor for R32 Refrigerant

In the age of global warming, energy saving features and overall reduction of environmental impact are critical components that must be addressed when developing new HVAC （heating ventilation and air conditioning） units. We chose R32 refrigerant, with its lower LCCP （life cycle climate performance） as a more sustainable choice than R410A. However, R32 has its drawbacks. Due to its smaller molecular weight, internal leakage loss is higher for R32. Moreover, high discharge gas temperature decreases the reliability of the compressor, and makes a large overheating loss increase. In this study, we will describe the technologies （reducing the piston pressurizing force, heat-insulating structure, optimizing the port diameter） that were developed to overcome these drawbacks. We will also oresent the performance and reliability of the newly develoned high efficiency swing, comnressor series for R32 refrigerant.

双滑板平动回转压缩机的结构优化

提出的双滑板平动回转压缩机是一种新型的回转压缩机。根据双滑板平动回转压缩机的工作原理,建立了双滑板平动回转压缩机的上、下滑板、转子及偏心轴的热力学和运动学模型,并以工作效率为目标函数,通过优化算法对双滑板平动回转压缩机的主要结构尺寸进行了优化。结构优化后,其工作效率可以达到0.8757。以此作为设计依据,对压缩机运行的性能改良提供了进一步的帮助。