Journal ArticleDOI
Investigation of the relationship between internal fluid leakage through a valve and the acoustic emission generated from the leakage
Reads0
Chats0
TLDR
In this paper, the authors presented a theoretical investigation of the acoustic emission to detect the internal leakage rate through a valve and experimental validation of the AE signals generated by internal liquid and gas leakage through valves.About:
This article is published in Measurement.The article was published on 2010-02-01. It has received 68 citations till now. The article focuses on the topics: Acoustic emission.read more
Citations
More filters
Journal ArticleDOI
A novel acoustic emission detection module for leakage recognition in a gas pipeline valve
TL;DR: The experimental results demonstrate that the intelligent recognition model based on kernel PCA and SVM classifier is very effective for recognizing the leakage level of a valve in a natural gas pipeline.
Journal ArticleDOI
Experimental investigation into vibro-acoustic emission signal processing techniques to quantify leak flow rate in plastic water distribution pipes
TL;DR: In this article, the authors used Vibro-Acoustic Emission (VAE) monitoring to investigate signal processing techniques that quantify leak flow rate, including Root Mean Square (RMS), peak in magnitude of the power spectral density and octave banding.
Journal ArticleDOI
A survey of the state of condition-based maintenance (CBM) in the nuclear power industry
R.M. Ayo-Imoru,A.C. Cilliers +1 more
TL;DR: In this paper, the authors present a survey on the state of condition-based maintenance in the nuclear industry, which is achieved by systematically looking at the major phases of CBM, which are monitoring, diagnostics and prognostics.
Journal ArticleDOI
Valve Fault Diagnosis in Internal Combustion Engines Using Acoustic Emission and Artificial Neural Network
TL;DR: In this paper, an acoustic emission (AE) technique was used to detect valve damage in internal combustion engines and the effect of three types of valve damage (clearance, semicrack, and notch) on valve leakage was investigated.
Journal ArticleDOI
Natural gas pipeline valve leakage rate estimation via factor and cluster analysis of acoustic emissions
TL;DR: A model based on factor analysis and k-medoids clustering was found to be exceedingly effective for recognizing internal valve leakage rates, and has potential value in real-world applications.
References
More filters
Journal ArticleDOI
Acoustic emission mapping of diesel engines for spatially located time series—Part II: Spatial reconstitution
TL;DR: In this article, the authors investigated the characteristics of AE wave transmission around and through the cylinder head of a small four-stroke fuel injection diesel engine, using a nine-sensor array.
Journal ArticleDOI
Internal valve leakage detection using an acoustic emission measurement system
TL;DR: In this article, a detailed experimental study was conducted to determine the lowest detectable compressed air leakage rate through an industrial control valve that can be reliably detected using an acoustic emission (AE) technique.
Journal ArticleDOI
An experimental investigation into the detection of internal leakage of gases through valves by vibration analysis
Graham Thompson,G Zolkiewski +1 more
TL;DR: In this article, the detection of through-valve leakage by vibration analysis is discussed, and experiments have been performed which demonstrate that a valve leaking internally excites the downstr...
Journal ArticleDOI
A study of hydraulic seal integrity
TL;DR: In this article, the authors evaluated various parameters of acoustic emission (AE) signals in terms of their capability in estimating the internal leakage rate in a water hydraulic cylinder and found that energy-based AE parameters, especially the rms value, are more suitable to interpret AE signals generated by internal leakage.
Journal ArticleDOI
Evaluation of Internal Leak in Valve Using Acoustic Emission Method
TL;DR: In this article, two types of valve(a 4 inch glove steam valve and 4 inch ball water valve) leak tests using three different leak path and various leak rates were performed in order to analyze AE properties when leaks arise in valve seat.