Study of the Pipeline in Emergency Operation and Assessing the Magnitude of the Gas Leak

Abstract

Accidents on gas pipelines cause significant damage to the national economy and the economy of the state. Thus, it is necessary to always be prepared for such situations in order to restore the normal operation of the gas pipeline as soon as possible. An important role is played by the execution time of the control actions to localize the accident, pump out the gas, and change the operating modes. It is essential that such control be undertaken, especially if such a situation occurs near a gas-measuring installation for measuring the amount of vented gas. Therefore, the control actions must be error-free in order to quickly stop the non-stationary process, which can lead to undesirable consequences. The paper presents a mathematical model of the operation of the pipeline, developed for the management of the pipeline in an emergency. The analysis of the problem of the occurrence of accidents was carried out, and the effect of liquid on its walls was modeled when the operating mode of the pipeline changed. An example is presented using a numerical model carried out in ANSYS, as well as being analyzed analytically. The results of the calculations are presented, and special attention is paid to the parameters influencing the change in the operating mode of the pipeline.

Methodology to Increase the Efficiency of the Mineral Water Extraction Process

“…A practical example shows a reduction in the overshoot time. Compared to previously proposed methods [10,23,29,[73][74][75][76][77][78][120][121][122][123][124][125][126][127][128][129][130][131][132][133][134][135][136][137][138][139], the time spent on equalizing the reservoir pressure is reduced by 15%. It is important to note not only the great theoretical significance of the research conducted, but also its real practical application.…”

The Development of the Soderberg Electrolyzer Electromagnetic Field’s State Monitoring System

“…It makes it possible to construct a temperature dependence not from one single measurement location, but from all areas of the research object. Similar works were considered in [92][93][94][95][96][97][98][99][100][101][102][103][104][105][106] but were applied to other objects. Thus, the logicality of the chosen research path was confirmed.…”

Method for Assessing Damage to Gas Distribution Network Pipelines based on Nonlinear Guided Wave

“…The previous methods, such as ray and light diffraction, cannot be effectively detected (26,27). Some scholars believe that the previous testing methods for cracks in polyethylene pipes (28) have the problems of long testing time and complex testing process, which can not be continuously tested and affect the use of polyethylene pipes (29)(30)(31)(32). Therefore, finding an effective detection method for polyethylene pipeline cracks is a problem that needs to be solved at present, and it is also to avoid major economic losses and casualties caused by polyethylene pipelines (33,34).…”