Performance evaluation of small centrifugal compressors for application in air-cycle power and refrigeration systems.

Summary

A test facility was developed for the performance evaluation of compressors of different size and blade profile and measurements were performed for two compressors. Dimensional analysis was used to correlate the test data. It was found that with the increase of blade Mach number, the ratios of stagnation pressure and temperature increased monotonically for any given flow condition. For compressors of different size, the Reynolds number was found to be a single function of dimensionless flow coefficient. The test results were supplemented with the results of numerical simulation of flow in impeller blade passages. Detailed three-dimensional flow structure was predicted by solving the equations for the conservation of mass and momentum. As expected, the local fluid velocity in impeller blade passage was found to increase with the rotational speed of the compressor.

Details

  • Original title: Performance evaluation of small centrifugal compressors for application in air-cycle power and refrigeration systems.
  • Record ID : 1993-0870
  • Languages: English
  • Publication date: 1992/07/14
  • Source: Source: Proc. 1992 int. Compress. Eng. Conf., Purdue Univ.
    vol. 1; 299-308; 8 fig.; 7 ref.
  • Document available for consultation in the library of the IIR headquarters only.