NUMERICAL MODELING OF THE START UP TRANSIENT IN RECIPROCATING COMPRESSORS

摘要：

Most simulation methodologies for compressors available in the literature consider a steady state operating condition. However, several phenomena that affect the compressor energy efficiency, noise level and reliability are associated with transient effects that occur when the compressor is either switched on or switched off. This paper presents a methodology, experimentally validated, to simulate the compressor start up, but considering a thermal equilibrium condition. From the results for the voltage during the start up, it is shown that the compressor equalization pressure greatly affects the torque that the electrical motor must overcome. It is also observed that mechanical losses are influenced by the compressor transient operation condition, with the bearing geometry being a factor of particular importance.

作者: R.LINK C.J.DESCHAMPS

作者单位: Embraco, Rui Barbosa, 1020 89219-901, Joinville, SC – Brazil Federal University of Santa Catarina 88040-900, Florianópolis, SC – Brazil

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）