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Evaluation of oil supply system for rotary compressor using two-phase flow analysis.

Number: 1116

Author(s) : KIM J. H., KWON M. S., PARK J. W.

Summary

The oil supply system is a key factor that greatly affects the performance of a rotary compressor. Therefore, verification of the system is required when designing the compressor. However, it is difficult to perform experimental evaluation of the oil supply system due to the characteristics of the rotary compressor such as high pressure and closed structure. In this study, numerical analysis schemes for evaluating the oil supply system was established. The Volume of Fluid (VOF) method was applied to simulate the phase separation phenomenon for the operating fluid, and unsteadystate analysis was performed to verify the supply characteristics over time. In addition, the loss coefficient at each outlet was defined to reflect the effect according to the oil supply flow path shape. The reliability of the established analysis schemes was verified by comparing the results of the analysis and experiment in the unloaded state. The error range of the analysis and experiment was within 6.5% and showed very high reliability. Finally, numerical analysis of the oil supply system under actual load conditions was performed to predict the supply flow rate at the time of compressor operation. In addition, performance impact tests were performed according to the assembly characteristics, and the cause of the loss was analyzed through internal flow visualization.

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  • Original title: Evaluation of oil supply system for rotary compressor using two-phase flow analysis.
  • Record ID : 30030262
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 26th International Compressor Engineering Conference at Purdue.
  • Publication date: 2022/07/15

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