卧式螺旋管内R134a流动沸腾迟滞现象

doi:10.6040/j.issn.1672-3961.0.2021.364

山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (3): 94-99.doi: 10.6040/j.issn.1672-3961.0.2021.364

• • 上一篇

卧式螺旋管内R134a流动沸腾迟滞现象

逯国强¹,韩彦龙²,韩吉田³,陈立海^1*,赵晓强¹,贺晓¹

1. 河北石油职业技术大学热能工程系, 河北承德 067000;2. 河北石油职业技术大学机械工程系, 河北承德 067000;3. 山东大学能源与动力工程学院, 山东济南 250061

发布日期:2022-06-23
作者简介:逯国强(1985— ),男,山东泰安人,讲师,硕士,主要研究方向为汽液两相流. E-mail:lugqsd@163.com. *通信作者简介:陈立海(1980— ),男,河北承德人,讲师,博士,主要研究方向为计算流体力学. E-mail:272457555@qq.com
基金资助:
国家自然科学基金资助项目(51076084)

Flow boiling hysteresis of R134a in horizontal helically-coiled tube

LU Guoqiang¹, HAN Yanlong², HAN Jitian³, CHEN Lihai^1*, ZHAO Xiaoqiang¹, HE Xiao¹

1. Department of Thermal Engineering, Hebei Petroleum University of Technology, Chengde 067000, Hebei, China;
2. Department of Mechanical Engineering, Hebei Petroleum University of Technology, Chengde 067000, Hebei, China;
3. School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China

Published:2022-06-23

摘要/Abstract

摘要： 为得到R134a在卧式螺旋管内的流动沸腾迟滞特性,进行增-减热流密度试验。试验时逐渐改变加热的热流密度,记录壁温变化情况,绘制增大和减小热流密度的沸腾曲线,通过曲线分析浮升力、离心力对成核滞后的影响,以及压强对成核滞后和湮灭滞后的影响。结果表明,不同位置截面处浮升力和离心力对汽泡的脱离行为影响不同,导致成核滞后的明显差异;压强越高,成核滞后、湮灭滞后现象均越明显,压强主要通过影响R134a润湿性影响成核滞后,通过影响泡核的形成影响湮灭滞后。研究结果揭示的流动沸腾迟滞特性对于提高换热器的运行可靠性具有指导意义。

关键词: 螺旋管, 流动沸腾, 成核滞后, 湮灭滞后, 压强

中图分类号:

TK124

逯国强,韩彦龙,韩吉田,陈立海,赵晓强,贺晓. 卧式螺旋管内R134a流动沸腾迟滞现象[J]. 山东大学学报 (工学版), 2022, 52(3): 94-99.

LU Guoqiang, HAN Yanlong, HAN Jitian, CHEN Lihai, ZHAO Xiaoqiang, HE Xiao. Flow boiling hysteresis of R134a in horizontal helically-coiled tube[J]. Journal of Shandong University(Engineering Science), 2022, 52(3): 94-99.

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卧式螺旋管内R134a流动沸腾迟滞现象

Flow boiling hysteresis of R134a in horizontal helically-coiled tube

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