Numerical investigation of a screw compressor performance
Journal Title: Jurnalul Stiintific TURBO - Year 2017, Vol 4, Issue 2
Abstract
In this paper the CHP 220 screw compressor performance evaluation was performed by using the numerical methods. Thus, for the CFD analysis has defined the computing domain comprised of two subdomains, one rotational and one stationary. The TwinMesh software, dedicated to volumetric machines with positive displacement, was used for the meshing of the rotors. The SST turbulence model has been used for flow modelling. Also, the finite element analysis of the stress and deformation state in the screw compressor rotors was performed. As inputs to FEM analysis, the results of the CFD analysis, performed on the working environment, were used. Finally, the results consist of the variation of the absolute pressure from the inlet to the compressor outlet, the variation of the massflow, the distribution of the sealing fluid (oil), but also the distributions of the stress tensor and the displacements together with the safety coefficients.
Authors and Affiliations
Ion MALAEL, Mihail SIMA
Keywords
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