The Open Fuels & Energy Science Journal

2013, 6 : 55-60
Published online 2013 December 30. DOI: 10.2174/1876973X01306010055
Publisher ID: TOEFJ-6-55

Simulation on the Temperature Drop Rule of Hot Oil Pipeline

Enbin Liu , Liuting Yang , Yong Jiang , Ping Tang , Jian Liu and Yuhang Yang
Southwest Petroleum University, Chengdu, China.

ABSTRACT

The heat transfer equation of oil, pipe wall and soil, combining with the boundary condition, connection condition and initial conditions to be the differential equations which can simulate the temperature drop rule of hot oil pipeline. Then the numerical solution method is used to solve, constructed difference equations. By the gauss elimination method, the temperature changing rule of hot oil pipeline after shutdown can be obtained, so we can determine the safety shutdown time and the restart pressure.

Keywords:

Pipeline, temperature drop, model.