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New Fast Non-Destructive Inspection Technique of Heat Exchanger Tubes Applying Acoustic Pulse Reflectometry (APR)

Nermin Trobradovic
Zoya Naydenova

Puni tekst: engleski pdf 268 Kb

str. 23-29

preuzimanja: 300



The aim of this work is to introduce you new heat exchanger inspection tech-nique, applying APR - Acoustic Pulse Reflectometry. This technique is not new. It has been used since decades for tube inspection, but in laboratory enviromental. Now APR is applicable in real industry for precise detection of every changes in cross sectional area in an inspection tube. The technique involves the injection of a sound pulse (one dimensional acoustic waves) into the tube under investigation and recording of the resultant reflections. Analysis of the reflections gives information about any changes in internal crossectional area of the inspection tube.

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