Numerical simulation and experimental analysis of heat transfer through the neck tube into vertical cryogenic insulated cylinders

被引：0
作者：
Yang Li
Caili Wang
Rongshun Wang
机构：
[1] Shanghai Jiaotong University,Institute of Refrigeration and Cryogenic Engineering
来源：
Heat and Mass Transfer | 2011年 / 47卷
关键词：
Heat Transfer; Convection Heat Transfer; Cold Vapor; Convection Coefficient; Conjugate Heat Transfer;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The neck tube is an important support structure in cryogenic insulated cylinders. The heat flux from the outside environment through the neck tube into the cryogenic liquid occupies a great proportion of the total heat leak and can be more than half of the total heat loads. In this paper, conjugate convective-conductive heat transfer model between wall and the cold vapor in conditions of natural discharge is numerically investigated. Also a liquid nitrogen boil-off method was adopted in experiments to validate the result of numerical simulation. Experimental results indicate more favorable agreement with conjugate heat transfer (CHT) model compared with simple solid heat conduction (SSHC) model by ANSYS software. And the convection between the wall and vapor is also calculated. The research and results can provide reference in design for neck tube of the cryogenic cylinder.
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页码：813 / 820
页数：7
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