Nonisothermal and Unsteady State Leakage Model for Gas Pipelines

Estimating leakage volume ratio and leakage pressure is very important to analyze and predict economic loss of gas leakage accident for gas.Based on research on current mathematical model of gas leakage ratio, calculation method of nonisothermal and unsteady state leakage ratio for gas pipeline is deduced.Case analysis results show that leakage ratio for gas can be accurately calculated by means of the mathematical model when diameter of leakage opening is big or pipe is broken.