CAJ | 학술논문

涉及输油管道土壤传热温度场时,线热源法、当量环法都都假设热油管道在土壤中的传热为稳定过程,计算结果与实际情况相比存在较大误差。采用有限单元法,对热油管道径向温度场和热流密度场进行了数值计算,模拟结果为以后预测土壤传热规律,制定合理输油工艺提供一定的理论基础。
섭급수유관도토양전열온도장시,선열원법、당량배법도도가설열유관도재토양중적전열위은정과정,계산결과여실제정황상비존재교대오차。채용유한단원법,대열유관도경향온도장화열류밀도장진행료수치계산,모의결과위이후예측토양전열규률,제정합리수유공예제공일정적이론기출。
When some complex heat transfer problems of soil temperature field are accompanied with hot oil pipe- lines, the computation results of linear heat source method and equivalent ring method exist large errors compared to actual results assuming that the heated crude oil transport in pipelines is in a steady heat transfer process. The nu- merical simulation on radial temperature field and the heat flux changing based on the finite element method offers the theoretical foundation for predicting soil heat transfer law and establishing rational transportation process.