Convective Heat Transfer Characteristics of High-Pressure Gas in Annular Channel Heat Exchanger with Membrane Spiral Tubes

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Convective Heat Transfer Characteristics of High-Pressure Gas in Annular Channel Heat Exchanger with Membrane Spiral Tubes

更新时间：2025-07-09

- Convective Heat Transfer Characteristics of High-Pressure Gas in Annular Channel Heat Exchanger with Membrane Spiral Tubes
- Vol. 44, Issue 11, Pages: 17-22(2010)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK172
- Online First：10 November 2010，
  
  Published：2010
- 稿件说明：
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Convective Heat Transfer Characteristics of High-Pressure Gas in Annular Channel Heat Exchanger with Membrane Spiral Tubes[J]. 2010, 44(11): 17-22.
DOI：

Convective Heat Transfer Characteristics of High-Pressure Gas in Annular Channel Heat Exchanger with Membrane Spiral Tubes[J]. 2010, 44(11): 17-22. DOI：

摘要

在加压的条件下试验研究了膜式螺旋管环形通道内的对流换热特性

试验气体有单质气体He和N

也有混合气体如He+N

试验压力为0.5～3.5 MPa

给出了不同螺旋管结构、不同气体和压力下的对流换热系数

以及典型冲刷形式的对流换热关联式及其适用条件.试验研究表明

气体压力、气体组分、冲刷形式对换热系数均有影响

特别是气体压力的影响最为突出.由数据分析得出了膜式螺旋管环形通道的对流换热关联式

该关联式可以适用于各种气体成分.

Abstract

Heat transfer in coal pressurized gasifier convection cooling section with the membrane spiral tubes under high pressure is experimentally investigated. High pressure single gas(He or N

)and mixture gas(He+N

)serve as the test media

and the test pressure for each gas varies from 0.5 MPa to 3.5 MPa. The results show that the gas composition

flow forms

especially the working pressure affect the high pressure gas convective heat transfer coefficient. The average convective heat transfer coefficients for different kinds of high pressure gas in annular channel heat exchanger

and the correlations of the typical flow forms and its applicable condition are systematically obtained.

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references

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