标题:
燃油电加热器内部温度场数值模拟
Numerical Study on the Temperature Field of an Oil Electric Heater
作者:
牛明田, 蔡林, 刘东民, 宋振国
关键字:
燃油电加热器, 自然对流, 非稳态换热, CFD
Oil Electric Heater; Nature Convection; Transient Heat Transfer; CFD
期刊名称:
《Applied Physics》, Vol.3 No.6, 2013-08-12
摘要:
本文利用计算流体力学(CFD)方法对某型燃油加热器进行了数值计算。考虑浮升力作用的自然对流换热及燃油流动带来的强制对流换热，研究了不同布置方案对燃油加热器内部温度场分布的影响，结果表明：当进口在上方时，出口温度要高于其他工况。最后进行了电加热器非稳态流场的计算，分析了电加热器静态预热温度场，给出了电加热器预热的时间范围，并结合非稳态温度场结果分析了监测点布置方案。
This paper investigates the Fuel-oil Electric Heater (FEH) flow field using CFD method. Both natural convection caused by buoyancy lift and forced convection caused by oil flow have been considered; the effects of equipment arrangement on temperature field distribution have been analysed. The results show that when inlet is located above, the outlet temperature is higher than other cases. At last, the unsteady flow field has also been calculated for preheating process, and the preheating time range and temperature sensors’ location have been pointed out.