Influence of high temperature composite insulation structure on its transient thermal characteristics

AI Qing; LIU Hua; XIA Xinlin; HAN Jiecai

doi:10.3969/j.issn.0438-1157.2014.z1.060

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Influence of high temperature composite insulation structure on its transient thermal characteristics

更新时间：2025-12-10

- Influence of high temperature composite insulation structure on its transient thermal characteristics
- CIESC Journal Issue S1, Pages: 371-376(2014)
- 作者机构：
  
  1. 哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001
  2. 哈尔滨工业大学航天学院,黑龙江,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.z1.060
  CLC： K123
- Online First：30 May 2014，
  
  Published：30 May 2014
- 稿件说明：
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AI Qing, LIU Hua, XIA Xinlin, et al. Influence of high temperature composite insulation structure on its transient thermal characteristics[J]. CIESC Journal, 2014, (S1): 371-376.
DOI：

AI Qing, LIU Hua, XIA Xinlin, et al. Influence of high temperature composite insulation structure on its transient thermal characteristics[J]. CIESC Journal, 2014, (S1): 371-376. DOI： 10.3969/j.issn.0438-1157.2014.z1.060.

摘要

建立多层复合隔热结构辐射-导热与相变换热模型，采用Monte Corlo方法模拟复合隔热结构内半透明介质的热辐射传递，有限体积法求解能量方程。分析比较了纤维隔热毡-金属膜复合结构、纤维隔热毡-纤维增强气凝胶材料-金属膜复合结构、纤维隔热毡-纤维增强气凝胶材料-相变隔热材料-金属膜复合结构等三类典型复合隔热结构的瞬态换热特性，研究表明不同的复合隔热结构组成其热特性差异显著，为复合隔热结构的设计、优化提供了指导思路。

Abstract

A heat transfer model combined conduction

radiation and phase change for multilayer composite insulation structure is built in this paper

radiative heat transfer in semitransparent participating material of the composite insulation structure is simulated by Monte Carlo method (MCM)

and then be regarded as radiative source term of the energy equation

while energy equation is solved by finite volume method (FVM). Transient heat transfer characteristics of three different typical composite insulation structures

which are respectively composed of fiber blanket insulation and metal film

fiber blanket insulation

fiber reinforced aerogel and metal film

fiber blanket insulation

fiber reinforced aerogel

phase change insulation materials and metal film composite insulation structure

are analyzed and compared. Computational results show that the structures and components of the composite insulation significantly influence its transient heat transfer characteristics. The proposed research work can provide guidance for optimization design of the composite insulation structure.

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