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RESEARCH PAPERS

A Technique and Computer Program for Predicting Far Field Noise Levels from Piping Runs

[+] Author and Article Information
M. F. Ajax

Applied Physics Division, Southwest Research Institute, San Antonio, Tex. 78284

J. Energy Resour. Technol 102(3), 136-143 (Sep 01, 1980) (8 pages) doi:10.1115/1.3227863 History: Received May 28, 1980; Online October 22, 2009

Abstract

Acoustic energy as radiated from effective incremental cylindrical surfaces is considered, which during the course of initial propagation are assumed to become hemisperhical and divergent. These are summed along piping runs under chosen gradient conditions representing an intensity decay along the pipe. A computer program for scanning the geometry of these incremental radiating surfaces is provided to include the effect of barriers in the line of propagation. Printout is both octave-band and “A” weighted.

Copyright © 1980 by ASME
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