SIMULATION OF HYDROCARBON PIPELINE LEAK DETECTION USING THEORETICALLY APPROXIMATED MODEL ON A TRANSIENT-BASED METHOD

Abstract

Detection and localization of small leaks in pipelines were early developed using a nonlinear adaptive state observer and a special correlation technique, based on pressure and flow measurements at the pipeline inlet and outlet. Simulations and experiments show the results for a gas and a liquid pipeline. This paper x-ray pipeline leak Identification using a transient-based method on hydraulic transients of a brake system with oil at two different temperatures, Leak effects at different frequency response were Simulated, measured and leak detection experiment with MATLAB code were also highlighted. The result obtained show that in certain circumstances the brake response is slow due to the temperature and suggests an appropriate pipe diameter to overcome this problem of low flow rate, the transfer function obtained using the proposed method were able to measure the presence of a leak on the pipe system. Simulations, measurements and leak experiments have shown that the early detection and localization of small leaks in liquid and gas pipelines can be considerably improved using theoretically approximated model as the required computational effort is relatively small, as compare to microcomputers which can be used for leak detection including monitoring of the inner pipeline state.