Numerical simulation of coupled heat transfer for LNG pipeline

HU Zhuohuan; HUANG Tianke; ZHANG Leyi; YANG Mo

doi:10.11949/j.issn.0438-1157.20150712

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Numerical simulation of coupled heat transfer for LNG pipeline

更新时间：2025-12-10

- Numerical simulation of coupled heat transfer for LNG pipeline
- CIESC Journal Issue S2, Pages: 206-212(2015)
- 作者机构：
  
  上海理工大学能源与动力工程学院,上海,200093
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150712
  CLC： Q051.2
- Online First：31 August 2015，
  
  Published：31 August 2015
- 稿件说明：
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HU Zhuohuan, HUANG Tianke, ZHANG Leyi, et al. Numerical simulation of coupled heat transfer for LNG pipeline[J]. CIESC Journal, 2015, (S2): 206-212.
DOI：

HU Zhuohuan, HUANG Tianke, ZHANG Leyi, et al. Numerical simulation of coupled heat transfer for LNG pipeline[J]. CIESC Journal, 2015, (S2): 206-212. DOI： 10.11949/j.issn.0438-1157.20150712.

摘要

对LNG输送管道与其周围环境之间的耦合传热过程进行分析

包括管道与保温层之间的导热以及保温层与周围环境之间的对流传热和辐射

并对LNG输送管道的冷量损失进行了较为完整的分析和计算。用数值仿真对管道周围的流场和温度场进行模拟和分析

比较了不同厚度的保温材料、Reynolds数、环境温度以及阳光辐射等对冷量损失的影响。结果表明保温材料特性对LNG输送管道的冷量损失影响较为敏感。随着保温材料热阻的增加

Reynolds数、环境温度以及阳光辐射对冷量的损失的影响逐渐减小。

Abstract

Coupled heat transfer was analyzed between liquefied natural gas(LNG)pipeline and environment

which including conduction

convection and radiative heat transfer.Conduction should be focused between pipeline and insulation.Convection and radiative was studied between insulation and environment.Cold exergy loss for LNG pipeline was discussed in addition.Then

numerical stimulation was adopted to analysis the flow and temperature filed around the pipeline.Different insulation materials

Reynolds number

environment temperature and solar radiation was investigated.The results showed the thermal resistance of insulation has a greater effect on the cold loss in LNG pipeline.With the increase of the thermal resistance of the insulation material

the influence of environment temperature

Reynolds number and solar radiation in cold exergy loss decreased.

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