Acoustics in Pumping Systems
نویسنده
چکیده
This tutorial will explain the pumping system speed of sound concept (how to account for acoustic velocity changes due to pipe wall flexibility and liquid properties), the definition of quarter-wave, half-wave, and higher order acoustic mode shapes, the importance of each mode shape, and examples of how to estimate these mode shapes and frequencies. The use of basic acoustics to identify and resolve pulsation and vibration issues in liquid pumping systems using acoustic filters will be described in this tutorial. Some simple examples of acoustic pulsation problems with the corresponding mode shapes and frequencies will be presented. Examples of pulsation control in liquid pumping systems using acoustic filters will be given. This tutorial will conclude with some recommended practices and guidelines for the application of acoustic theory and practice to the design, review, and problem avoidance or resolution in liquid pumping systems.
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