Onedimensional model of flow and heat transfer of supercritical hydrocarbon fuel

李海旺; 王渊; 朱剑琴; 胡希卓; 陶智

doi:10.13224/j.cnki.jasp.2017.10.004

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Onedimensional model of flow and heat transfer of supercritical hydrocarbon fuel

更新时间：2026-07-07

- Onedimensional model of flow and heat transfer of supercritical hydrocarbon fuel
- Vol. 32, Issue 10, Pages: 2330-2337(2017)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室,北京,100191
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2017.10.004
  CLC：
- Published：2017
- 稿件说明：
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李海旺, 王渊, 朱剑琴, 胡希卓, 陶智. 超临界碳氢燃料流动换热的一维模型[J]. 航空动力学报, 2017, 32(10): 2330-2337.

doi: 10.13224/j.cnki.jasp.2017.10.004
李海旺, 王渊, 朱剑琴, 胡希卓, 陶智. 超临界碳氢燃料流动换热的一维模型[J]. 航空动力学报, 2017, 32(10): 2330-2337. DOI： 10.13224/j.cnki.jasp.2017.10.004.

doi: 10.13224/j.cnki.jasp.2017.10.004 DOI：

摘要

考虑水平圆管内燃料流动换热过程和裂解反应及结焦过程之间的相互影响

提出一个一维稳态模型来研究碳氢燃料的流动换热过程与裂解反应的耦合特性。选用正癸烷作为替代燃料

裂解反应采用正癸烷裂解的一步总体化学反应模型

结焦过程采用一维结焦工程模型进行数值模拟

结果表明裂解反应能够强化换热。选择不同的管壁面热流密度、进口压力和质量流量等典型工况进行模拟

表明流动换热过程影响燃料裂解反应速率和在管内的驻留时间

从而影响裂解度。计算结果与实验数据的对比表明了程序的可靠性

加上一维程序计算效率高的优点

可将应用于快速工程计算

并为三维数值模拟提供支持。

Abstract

Considering the mutual influence between fuel flow and heat transfer process and pyrolysis reaction and coking process in horizontal circular tube

a onedimensional steadystate model was proposed to study the coupling characteristics of hydrocarbon fuel flow and heat transfer process and pyrolysis reaction. ndecane was chosen as the alternative fuel

pyrolysis reaction used onestep chemical reaction model and coking process used a onedimensional coking engineering model for numerical simulation. The overall results showed that the pyrolysis reaction can strengthen heat transfer

and different wall heat flux

inlet pressure and mass flow rate were chosen to simulate the typical working conditions. The overall results showed that flow and heat transfer process influenced fuels pyrolysis reaction rate and dwell time in the tube

thus affecting pyrolysis ratio. The comparisons of the calculated results with the experimental data show the reliability of the program

which can be applied to swift engineering calculation combined with the advantage of high calculation efficiency

and will provide a support for threedimensional numerical simulation.

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Related Institution

北京航空航天大学能源与动力工程学院航空发动机气动热力国家科技重点实验室

School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics

Academy of Aeronautic Propulsion Technology, Aviation Industry Corporation of China

National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics,School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics

School of Power and Energy,Northwestern Polytechnical University

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