Compressor Performance Curve Extrapolation Method Based on the Similarity Theory

Zhi Tao Wang; Bing Bai; Shu Ying Li; Qing Cai Yang; Meng Qi Wang

doi:10.4028/www.scientific.net/AMM.672-674.1545

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 672-674Compressor Performance Curve Extrapolation Method...

Compressor Performance Curve Extrapolation Method Based on the Similarity Theory

Abstract:

Due to the fact that the low speed pump similarity theory is only applicable to incompressible fluid, this theory cannot be used for extrapolation of compressor performance curve. Considering the compressibility of working medium; therefore, this paper has modified the similarity theory and put forward a new index relationship equation. The two low speed performance lines which are already known were used to get the similar working points and extrapolate the performance lines through the optimization method. Compared with the existing performance lines, the results show that the method is simple, convenient and qualified with practicability and accuracy. This method plays an important role on studying startup process of a gas turbine and improving the accuracy of the simulation of startup process.

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Periodical:

Applied Mechanics and Materials (Volumes 672-674)

Pages:

1545-1549

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.672-674.1545

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Online since:

October 2014

Authors:

Zhi Tao Wang*, Bing Bai, Shu Ying Li, Qing Cai Yang, Meng Qi Wang

Keywords:

Compressor, Extrapolation, Performance Curve, Similarity Theory

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