• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Lv, Yuanzheng (Lv, Yuanzheng.) | Xia, Guodong (Xia, Guodong.) (学者:夏国栋) | Cheng, Lixin (Cheng, Lixin.) | Ma, Dandan (Ma, Dandan.)

收录:

EI Scopus SCIE

摘要:

Experiments of the pressure drop instability of flow boiling with FC-72 in 8 parallel rectangle microchannels with a hydraulic diameter of 88 pm were conducted in this study. The mass flux ranges from 578.2 to 2310.9 kg/m(2) s, the heat flux ranges from 0 to 1200 kW/m(2) and the measured pressure drop ranges from 13 to 275 kPa. The compressive volume in a nitrogen vessel before the test microchannels is set as 0, 5 and 15 ml in the experiments. The experimental results of heat transfer, pressure drop and the corresponding flow patterns are presented and analyzed. Furthermore, the critical vapour qualities at the onset of the flow boiling instability (OFBI) are predicted by a theoretical model considering the local pressure and the frictional pressure resistances. The calculated and experimental results indicate that the instable zones in a flow boiling stability map expand with increasing the compressive volume and decreasing the two types of resistances. The critical vapour quality at OFBI changes from 0.65 to 1 when the local pressure resistance combination coefficient is increased to 7.33 x 10(-3) or the frictional pressure resistance combination coefficient is increased to 0.532. The physical mechanisms behind the phenomena are discussed according to the experimental results.

关键词:

Experiment Flow boiling instability Flow patterns Mechanisms Microchannels Pressure drop oscillation

作者机构:

  • [ 1 ] [Lv, Yuanzheng]Beijing Univ Technol, Coll Environm & Energy Engn, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China
  • [ 2 ] [Xia, Guodong]Beijing Univ Technol, Coll Environm & Energy Engn, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China
  • [ 3 ] [Cheng, Lixin]Beijing Univ Technol, Coll Environm & Energy Engn, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China
  • [ 4 ] [Ma, Dandan]Beijing Univ Technol, Coll Environm & Energy Engn, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China

通讯作者信息:

  • 夏国栋

    [Xia, Guodong]Beijing Univ Technol, Coll Environm & Energy Engn, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER

ISSN: 0735-1933

年份: 2019

卷: 108

7 . 0 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:52

JCR分区:1

被引次数:

WoS核心集被引频次: 33

SCOPUS被引频次: 35

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 2

在线人数/总访问数:247/3608625
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司