Low-frequency acoustic vibration of a vertical gas turbine recuperator during cold start-up is described. The vibration was identified as fluid-thermoacoustic instability driven by a modified Sondhauss tube-like thermoacoustic phenomenon. The problem and its underlying theoretical basis are described. A design guideline for prevention of instability and alternative solutions for the elimination of the vibration are given.
Issue Section:Power: Heat Transfer
Topics:Fluids, Gas turbines, Heat exchangers, Vibration, Acoustics, Design
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Copyright © 1994
by The American Society of Mechanical Engineers