本文报道了压缩机和冰箱的环保技术。家用冰箱使用HC-600a异丁烷制冷剂。首先，我们将其特性与HFC-134a制冷剂进行了比较，并讨论了提高压缩机容积效率的相关技术。其次，我们讨论了提高活塞和缸孔部分容积效率的技术。活塞槽优于油封。我们还报告了在沟槽部分使用CFD进行的最佳沟槽设计和流体分析。引文:内华达州拉斯维加斯ASHRAE会议论文

This paper reports environmentally friendly technologies for compressors and refrigerators. For household refrigerators, HC-600a isobutane refrigerant is used worldwide. First, we compare its characteristics to HFC-134a refrigerant and discuss the technologies regarding the higher volumetric efficiency of compressors. Second, we discuss technologies for improving the volumetric efficiency at the piston and the cylinder bore portions. The piston groove outperforms oil seals. We also report the optimum groove design and fluid analysis using CFD at the groove portion.