Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow Predictions

A numerical method that solves the Reynolds-averaged Navier-Stokes equations is used to study an inefficient component of a shipboard air-conditioning HCFC-124 compressor system. This high-loss component of the centrifugal compressor was identified as the volute through a series of measurements give...

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Main Authors: Yu-Tai Lee, Thomas W. Bein
Format: Article
Language:English
Published: Wiley 1999-01-01
Series:International Journal of Rotating Machinery
Subjects:
Online Access:http://dx.doi.org/10.1155/S1023621X99000214
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author Yu-Tai Lee
Thomas W. Bein
author_facet Yu-Tai Lee
Thomas W. Bein
author_sort Yu-Tai Lee
collection DOAJ
description A numerical method that solves the Reynolds-averaged Navier-Stokes equations is used to study an inefficient component of a shipboard air-conditioning HCFC-124 compressor system. This high-loss component of the centrifugal compressor was identified as the volute through a series of measurements given in Part I of the paper. The predictions were made using three grid topologies. The first grid closes the connection between the cutwater and the discharge diffuser. The other two grids connect the cutwater area with the discharge diffuser. Experiments were performed to simulate both the cutwater conditions used in the predictions. Surface pressures along the outer wall and near the inlet of the volute were surveyed for comparisons with the predictions. Good agreements between the predicted results and the measurements validate the calculations. Total pressure distributions and flow stream traces from the prediction results support the loss distribution through the volute. A modified volute configuration is examined numerically for further loss comparison.
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spelling doaj-art-7e3a1da66c2241118bf45f14d076dcde2025-02-03T05:57:34ZengWileyInternational Journal of Rotating Machinery1023-621X1999-01-015424125010.1155/S1023621X99000214Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow PredictionsYu-Tai Lee0Thomas W. Bein1David Taylor Model Basin, 9500 MacArthur Blvd., West Bethesda, MD 20817-5700, USADavid Taylor Model Basin, 9500 MacArthur Blvd., West Bethesda, MD 20817-5700, USAA numerical method that solves the Reynolds-averaged Navier-Stokes equations is used to study an inefficient component of a shipboard air-conditioning HCFC-124 compressor system. This high-loss component of the centrifugal compressor was identified as the volute through a series of measurements given in Part I of the paper. The predictions were made using three grid topologies. The first grid closes the connection between the cutwater and the discharge diffuser. The other two grids connect the cutwater area with the discharge diffuser. Experiments were performed to simulate both the cutwater conditions used in the predictions. Surface pressures along the outer wall and near the inlet of the volute were surveyed for comparisons with the predictions. Good agreements between the predicted results and the measurements validate the calculations. Total pressure distributions and flow stream traces from the prediction results support the loss distribution through the volute. A modified volute configuration is examined numerically for further loss comparison.http://dx.doi.org/10.1155/S1023621X99000214Air-conditioning compressorVoluteCutwater (tongue)DiffuserReynolds-averaged Navier-Stokes equations.
spellingShingle Yu-Tai Lee
Thomas W. Bein
Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow Predictions
International Journal of Rotating Machinery
Air-conditioning compressor
Volute
Cutwater (tongue)
Diffuser
Reynolds-averaged Navier-Stokes equations.
title Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow Predictions
title_full Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow Predictions
title_fullStr Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow Predictions
title_full_unstemmed Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow Predictions
title_short Performance Evaluation of an Air-Conditioning Compressor Part II: Volute Flow Predictions
title_sort performance evaluation of an air conditioning compressor part ii volute flow predictions
topic Air-conditioning compressor
Volute
Cutwater (tongue)
Diffuser
Reynolds-averaged Navier-Stokes equations.
url http://dx.doi.org/10.1155/S1023621X99000214
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