日本冷冻协会,日本机械学会和空调卫生工学会等于1991年4月24～25日在东京举行。这次讲演会共发表论文45篇,比较引人注目的论文有:净化室空调器运转时的灰尘浓度分布、住宅用VAV空调系统的研究开发、冷藏集装箱、可靠性的逐年变化,回转式压缩机叶片材料、空调用涡旋式压缩机的驱动销应变测量、热交换器传热性质的数值解析、HFC134a的冷库用压缩机的滑油与性能、制 The Japan Refrigeration Association, the Japan Machinery Society and the Institute of Air Conditioning and Hygiene Engineering were held in Tokyo on April 24-25, There were 45 papers published in this lecture. Among the papers that attracted more attention were the concentration distribution of dust in the operation of clean room air conditioners, the research and development of VAV air conditioners for residential use, refrigerated containers, year-by-year changes in reliability, Machine blade material, air-conditioning scroll compressor drive pin strain measurement, numerical analysis of the heat transfer heat transfer properties of the compressor, HFC134a refrigerator compressor oil and performance, the system