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Numerical and experimental investigations on the failure mechanism of the suction valve in the refrigerator compressor under unconventional conditions

Citation

Yin, X and Fang, J and Cao, F and Chen, Z and Wang, X, Numerical and experimental investigations on the failure mechanism of the suction valve in the refrigerator compressor under unconventional conditions, International Journal of Refrigeration, 117 pp. 44-51. ISSN 0140-7007 (2020) [Refereed Article]

Copyright Statement

2020 Elsevier Ltd and IIR. All rights reserved.

DOI: doi:10.1016/j.ijrefrig.2020.03.030

Abstract

The return sample of the reciprocating compressor revealed that the failure of a few suction valves was detected in a transitory time. To deal with this unconventional failure problem, microscopy and failure analysis were conducted and compared with the conventional failure type. The failure assumptions were proposed due to this, and a mathematical model using Fluid-Structure-Interaction (FSI) method was developed to investigate the stress performance and the failure mechanism. Moreover, an accelerated experimental facility was set up to validate the theoretical and numerical results. Results showed that the shear stress was the main reason for the short-time failure, and the head part of the suction valve experienced stress concentration. The failure started from the center of the suction valve's head part and resulted in its fracture at last. The thicker suction valve had the less stress concentration, and the valve head with a less hydraulic diameter had a minor failure possibility during the compression process. It provides reference for the unconventional failure problem during the practical engineering.

Item Details

Item Type:Refereed Article
Keywords:reciprocating compressor, suction valve, unconventional failure, shear stress, FSI model
Research Division:Engineering
Research Group:Mechanical engineering
Research Field:Energy generation, conversion and storage (excl. chemical and electrical)
Objective Division:Energy
Objective Group:Energy storage, distribution and supply
Objective Field:Energy systems and analysis
UTAS Author:Wang, X (Professor Xiaolin Wang)
ID Code:139296
Year Published:2020
Web of Science® Times Cited:1
Deposited By:Engineering
Deposited On:2020-06-08
Last Modified:2020-12-22
Downloads:0

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