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Development of a mechanistic chamber model for twin-screw compressors with detailed sub-models for estimating the bearing loads.

Number: 1593

Author(s) : SARAVANA A., LIU H., GROLL E. A., ZIVIANI D.

Summary

For a detailed performance evaluation of oil-injected twin-screw compressors, it is of utmost importance to understand and model the advanced physical phenomena occurring during the compression process (e.g., mass and heat transfer mechanisms) as well as analyze the mechanical behavior of the compressor (e.g., rotordynamics, bearing loads, leakage flows). Upon establishing such a model, it is important to verify and validate the results using experimentally generated data or previously verified model.
This paper presents a method to perform a thorough numerical computation of the torque and bearing loads followed by bearing losses due to friction, on a 4/6 oil-injected twin-screw compressor with slide-valve part-load modulation and economization. Using data from a previously established experimental setup, this model has been verified and validated with the help of SCORG and PDSim. Indicated diagrams and mechanistic analyses were developed and have been analyzed to experimentally quantify the various losses and to validate the models. The validated model is used to analyze the performance of the compressor.

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Pages: 13

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  • Original title: Development of a mechanistic chamber model for twin-screw compressors with detailed sub-models for estimating the bearing loads.
  • Record ID : 30033638
  • Languages: English
  • Subject: Technology
  • Source: 2024 Purdue Conferences. 27th International Compressor Engineering Conference at Purdue.
  • Publication date: 2024/07/18

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