螺旋内管双面换热的稳态解析法

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Analytical Method of Double-Faced Heat Transfer with Helix Inner Tube

National Key Laboratory of Multiphase Flow, Xi'an Jiaotong University, Xi'an, 710049, China

摘要: 根据螺旋内管双面换热的特点,列出了双面换热元件的能量方程。用解析方法进行稳态分析计算,得到了稳态下元件内部温度分布的解析表达式。利用该表达式对单相换热和蒸汽发生器两个实例进行了计算。在计算蒸汽发生器换热时,对多相流先采用迭代法确定每一区段的长度。解析表达式的计算结果与文献值相吻合,计算时间短。
- 螺旋内管 /
- 双面换热 /
- 温度分布 /
- 解析法
Abstract: An analytical method is proposed to solute the steady characteristics of some special heat exchanging component.This paper discussed the double-faced heat transfer characteristic with helix inner tube,and puts up the energy equation of such heat exchanging component.After solving the equations with analytical method,an analytical expression is given,which can describe the liquid temperature distribution in the component.The method is used for solving two example.In the steam generator calculation,an iterative technique is used for calculating the length of apiece section.
- Helix inner tube /
- Double-faced heat transfer /
- Temperature distribution /
- Analytical method