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Numerical simulation of novel axial impeller patterns to compress water vapor as refrigerant

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 May 2011Publisher:Elsevier BVJournal:Energy, volume 36, pages 2,773-2,781 (issn: 0360-5442,

Authors: Qubo Li; Janusz Piechna; Norbert Müller;

doi: 10.1016/j.energy.2011.02.017

Numerical simulation of novel axial impeller patterns to compress water vapor as refrigerant

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Abstract

Through means of 3-D CFD (Computational Fluid Dynamics) method, a novel axial compressor with different impeller shapes compressing water vapor as refrigerant was investigated. The numerical simulation focuses on the fluid flow from compressor impeller inlet to outlet. The overall performance level and range are predicted. Different blade patterns with different hub sizes were compared regarding the aerodynamic performance. Independent of the blade pattern, in this numerical investigation the largest hub diameter shows the highest pressure ratio and efficiency at narrowest operating range.

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Keywords

Flow control, Axial compressor, Water vapor refrigerant, Operating range

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