DETECTION AND LOCATION OF LITTLE LEAKAGE IN FLUID PIPELINE

This paper presents a new method to locate little leakage in fluid pipeline.This method modified the formula suggested by Isermann.Considering the effect upon the pressure at the pump output after leakage in the pipeline,We can detect and locate the leakage in the pipeline using different pump.So we extended the application of the formula suggested by Isermann and improved the precision of estimation.The experiments had been carried out on a pipeline of 91.6m long and 8 mm in diameter andhad shown that our method is suitable not only to detect the leakage as small asmerely 1%,but also to decrease the estimated mean error from 10% original to less than 3%.