[1]边浩志,孙中宁,丁铭,等.含空气蒸汽冷凝换热特性的数值模拟分析[J].哈尔滨工程大学学报,2019,40(02):426-432.[doi:10.11990/jheu.201709070]
 BIAN Haozhi,SUN Zhongning,DING Ming,et al.Numerical simulations on steam condensation heat transfer characteristics in the presence of air[J].hebgcdxxb,2019,40(02):426-432.[doi:10.11990/jheu.201709070]
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含空气蒸汽冷凝换热特性的数值模拟分析(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
40
期数:
2019年02期
页码:
426-432
栏目:
出版日期:
2019-02-05

文章信息/Info

Title:
Numerical simulations on steam condensation heat transfer characteristics in the presence of air
作者:
边浩志1 孙中宁1 丁铭1 张楠1 孟兆明1 王璐2
1. 哈尔滨工程大学 核安全与仿真技术国防重点学科实验室, 黑龙江 哈尔滨 150001;
2. 中国核动力研究设计院 核反应堆系统设计技术重点实验室, 四川 成都 610213
Author(s):
BIAN Haozhi1 SUN Zhongning1 DING Ming1 ZHANG Nan1 MEMG Zhaoming1 WANG Lu2
1. Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin 150001, China;
2. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213, China
关键词:
不凝性气体冷凝模型扩散理论数值模拟壁面过冷度气体压力气体流速
分类号:
TL331
DOI:
10.11990/jheu.201709070
文献标志码:
A
摘要:
为定量考察气体流速、壁面过冷度、换热面高度和气体压力对含空气蒸汽冷凝换热的影响,本文采用数值模拟的方法进行了分析。计算了基于COPAIN试验装置和CFD软件STAR-CCM+中的扩散理论冷凝模型,在主流流速0.1~3 m/s、壁面过冷度4℃~50℃、换热面高度0.5~6 m以及气体压力0.1~0.6 MPa的条件下讨论了冷凝换热特性。研究表明:冷凝换热系数在主流流速小于0.5 m/s的自然对流主导区内几乎不受速度的影响,换热系数相对偏差在6.7%以内;壁面过冷度的幂指数可用空气质量份额和过冷度的函数来表示且幂指数范围为-0.008 3~-0.367;换热面高度在1 m以内时对冷凝换热性能有明显影响;不同蒸汽质量份额条件下,冷凝换热系数与压力的0.64次方成正比。通过对计算结果的分析得到了冷凝传热性能与各影响因素之间的量化关系,这对进一步认识含空气蒸汽冷凝现象有一定的指导意义。

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相似文献/References:

[1]宿吉强,孙中宁,高力,等.含不凝性气体蒸汽凝结换热的壁面过冷度分析[J].哈尔滨工程大学学报,2013,(12):1551.[doi:10.3969/j.issn.1006-7043. 201212052]
 SU Jiqiang,SUN Zhongning,GAO Li,et al.Analysis on the wall sub-cooling of heat transfer of steam condensation with non-condensable air[J].hebgcdxxb,2013,(02):1551.[doi:10.3969/j.issn.1006-7043. 201212052]

备注/Memo

备注/Memo:
收稿日期:2017-09-16。
基金项目:国家自然科学基金项目(11775060).
作者简介:边浩志,男,博士研究生;孙中宁,男,教授,博士生导师.
通讯作者:孙中宁,E-mail:sunzhongning@hrbeu.edu.cn
更新日期/Last Update: 2019-01-30