A Study of Indicator Passage Error Correction Schemes

[+] Author and Article Information
B. G. Shiva Prasad, F. L. Heidrich

Dresser-Rand, EPCD, Painted Post, NY 14870

J. Eng. Gas Turbines Power 113(3), 399-405 (Jul 01, 1991) (7 pages) doi:10.1115/1.2906244 History: Received September 01, 1990; Online April 24, 2008


The passage length between the cylinder and the measuring transducer is known to cause distortion of pressure time traces due to pulsations caused by dynamic effects. This paper attempts to arrive at a simple and efficient calculation scheme for correcting those distortions. Both time domain (method of characteristics approach) and frequency domain methods are evaluated to assess the importance of considering various effects for improving the prediction accuracy. The predictions from both methods are compared with experimental data as well as the results of Heidrich [6], who used simpler versions of these methods.

Copyright © 1991 by The American Society of Mechanical Engineers
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