The Inverse Study Of The Liquefied Gas Source Intensity Based On The MATLAB

In recent decades, the chemical industry in rapid development of Chinasuch as bamboo shoots, Liquefied gas energy is fuel, raw materials oringredients in chemical industry, the use, demand and transportation volume ofit also increase year by year. But leakage accidents due to the occasionally offenoccurred, and similar accidents with characteristics of a sudden strong, rapidproliferation. If happend, they would cause a large number of personnelpoisoning or death, significant property damage. Therefore, in emergencyrescue process, getting the leakage source intensity and location informationquickly, dividing the influence of regional of gas leakage exactly, can reduce theloss in the greatest extent. The division of range of the affected area, accordingto the diffusion model (using the Gauss diffusion model) combinating theleakage source intensity, the meteorological environment parameter todetermine the concentration of wind gas leakage. Therefore, in this paper, theresearch work for the leakage of liquefied gas leakage source inversion problemfor is as follows:1. In the Gauss plume diffusion model as the theoretical basis, executenumerical simulation of the liquefied gas under different hypothesis (Liquidchlorine) the leakage of leakage and diffusion of the forward numericalsimulation.2. According to the characteristics of continuous leakage of liquefied gas,choicing the liquid chlorine storage tank continuous leakage as an example,constructioning the leakage source inversion problem and solving the model.Using the Gauss model to obtain the calculation of gas concentration value, andgetting a objective function by a certain relationship between concentration atthe corresponding position of the monitor. Using simplex search algorithm for the optimization objective function, determinationing of gas leakage sourceintensity and location specific information.3. By programming the powerful MATLAB software as the foundation,using the GUI for interface design, according to the measurement data andmodel parameters in the formula to estimate the source intensity value,realization source intensity Back-calculation based on the Gauss model forSimplex search algorithm positive diffusion model, and analyze the existingmeasurement error in the monitoring data, the feasibility of the algorithm.This paper uses liquefied gas as the research object, Application ofMATLAB software on the leakage and diffusion of forward simulation andcombining the simplex implementation source intensity inverse algorithmprogramming search, the research conclusion as liquefied gas leakage accidentsource intensity inverse theory basis, but also for the leakage of liquefied gasaccident forecasting and emergency rescue support.