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Correlation between the fluid structure interaction method and experimental analysis of bending stress of a variable capacity compressor suction valve.

Number: pap. 1324

Author(s) : SILVA J. C., ARCENO E.

Summary

The valves are responsible for controlling the suction and discharge systems of reciprocating compressors, therefore they are considered the principal components of the manifold subsystem. Although usually the valves present a simple geometry, these components are difficult to design, because they involve a nonlinear analysis, and stochastic events need to be considered to succeed in their project. Among other care that the engineer should take, the bending stress levels developed during operation of the compressor is of paramount importance. The purpose of this paper is to show the correlation between the application of the numerical method known as FSI (fluid structure interaction) and the experimental strain gage method, for the mechanical stresses analysis in the suction valve of a reciprocate compressor with variable capacity. During the experimental phase, the conditions that represent the compressor application envelope are mapped by varying the suction and discharge line pressures and the mechanical stresses in the suction valve are measured. The same pressure variations are imposed on the FSI numerical model and then the results for mechanical stress are compared to the ones obtained through the experimental method.

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Pages: 8 p.

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Details

  • Original title: Correlation between the fluid structure interaction method and experimental analysis of bending stress of a variable capacity compressor suction valve.
  • Record ID : 30014254
  • Languages: English
  • Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
  • Publication date: 2014/07/14

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