Evaluation of Proposed ASME Performance Test Code 36 for Sound Power Level Determination of Large Steam Turbine-Generators

[+] Author and Article Information
S. E. Grabkowski

General Electric Corporate Research and Development, Schenectady, N. Y.

J. MacDonald, T. E. VanSchaick

General Electric Steam Turbine-Generator Products Division, Schenectady, N. Y.

J. Eng. Power 98(4), 493-499 (Oct 01, 1976) (7 pages) doi:10.1115/1.3446224 History: Received August 01, 1975; Online July 14, 2010


The “two-surface” correction technique, as it is outlined in ASME Performance Test Code No. 36, is utilized in the determination of large steam turbine-generator sound power level (PWL). Test data obtained from using this method and other PWL calculation methods are presented. The two-surface method did not yield consistent results in the indoor environments encountered and had only limited application in turbine-generator PWL calculations. A modified two-surface approach was also tested. This method, which treats each component as a separate source and uses grids located close to the machine, was found to produce more accurate and confident results.

Copyright © 1976 by ASME
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