The New Performance Calculation Method of Fouled Axial Flow CompressorReport as inadecuate




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The Scientific World JournalVolume 2014 2014, Article ID 906151, 10 pages

Research Article

Department of Mechanical Engineering, North China Electric Power University, Baoding, Hebei 071003, China

School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China

Received 4 March 2014; Revised 22 July 2014; Accepted 22 July 2014; Published 13 August 2014

Academic Editor: Xinping Zhou

Copyright © 2014 Huadong Yang and Hong Xu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Fouling is the most important performance degradation factor, so it is necessary to accurately predict the effect of fouling on engine performance. In the previous research, it is very difficult to accurately model the fouled axial flow compressor. This paper develops a new performance calculation method of fouled multistage axial flow compressor based on experiment result and operating data. For multistage compressor, the whole compressor is decomposed into two sections. The first section includes the first 50% stages which reflect the fouling level, and the second section includes the last 50% stages which are viewed as the clean stage because of less deposits. In this model, the performance of the first section is obtained by combining scaling law method and linear progression model with traditional stage stacking method; simultaneously ambient conditions and engine configurations are considered. On the other hand, the performance of the second section is calculated by averaged infinitesimal stage method which is based on Reynolds’ law of similarity. Finally, the model is successfully applied to predict the 8-stage axial flow compressor and 16-stage LM2500-30 compressor. The change of thermodynamic parameters such as pressure ratio, efficiency with the operating time, and stage number is analyzed in detail.





Author: Huadong Yang and Hong Xu

Source: https://www.hindawi.com/



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