...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Heat Transfer >Correlation for Flow Boiling Critical Heat Flux in Thin Rectangular Channels
【24h】

Correlation for Flow Boiling Critical Heat Flux in Thin Rectangular Channels

机译：矩形薄壁通道中沸腾临界热通量的相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effect of heated length on critical heat flux (CHF) in thin rectangular channels under atmospheric pressure has been studied. CHF in small channels has been widely studied in the last decades but most of the studies are based on flow in round tubes and number of studies focused on rectangular channels is relatively small. Although basic triggering mechanisms, which lead to CHF in thin rectangular channels, are similar to that of tubes, applicability of thermal hydraulic correlations developed for tubes to rectangular channels are questionable since heat transfer in rectangular channels are affected by the existence of nonheated walls and the noncircular geometry of channel circumference. Several studies of CHF in thin rectangular channels have been reported in relation to thermal hydraulic design of research reactors and neutron source targets and correlations have been proposed, but the studies mostly focus on geometrical conditions of the application of interest and therefore effect of channel parameters exceeding their interest is not fully understood. In his study, CHF data for thin rectangular channels have been collected from previous studies and the effect of heated length on CHF was examined. Existing correlations were verified with data with positive quality outlet flow but none of the correlations successfully reproduced the data for a wide range of heated lengths. A new CHF correlation for quality region applicable to a wide range of heated lengths has been developed based on the collected data.
机译：研究了大气压下矩形矩形通道中加热长度对临界热通量（CHF）的影响。在过去的几十年中，对小通道中的CHF进行了广泛的研究，但是大多数研究都是基于圆管中的流动，并且针对矩形通道的研究数量相对较少。尽管在薄矩形通道中导致CHF的基本触发机制与管相似，但为管开发到矩形通道的热力水力相关性是否适用还存在疑问，因为矩形通道中的传热会受到非加热壁和壁面的影响。通道圆周的非圆形几何形状。关于研究堆和中子源目标的水力设计，已经报道了在薄矩形通道中进行CHF的几项研究，并提出了相关性，但相关研究大多集中在感兴趣的应用的几何条件上，因此通道参数的影响超过了他们的兴趣尚未完全了解。在他的研究中，从以前的研究中收集了矩形矩形通道的CHF数据，并研究了加热长度对CHF的影响。现有的相关性已用出口质量为正的数据进行了验证，但是没有一个相关性成功地复制了加热范围很广的数据。基于收集的数据，已经开发了适用于多种加热长度范围的质量区域的新CHF相关性。

著录项

  • 来源
    《Journal of Heat Transfer》 |2009年第12期|121003.1-121003.7|共7页
  • 作者

    Futoshi Tanaka; Takashi Hibiki; Kaichiro Mishima;

  • 作者单位

    Graduate School of Energy Science, Kyoto University and Mitsubishi Heavy Industries, LTD.,16-5, Konan 2-Chome, Minato-ku,Tokyo 108-8215, Japan;

    School of Nuclear Engineering,Purdue University,Nuclear Engineering Building,Room 132C, 400 Central Drive,West Lafayette, IN 47907-2017;

    Research Reactor Institute, Kyoto University, Kumatori, Sennan,Osaka 590-0494, Japan and Institute of Nuclear Safety System,Incorporated,64 Sata, Mihama-cho, Mikata-gun,Fukui 919-1205 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    critical heat flux; heated length; correlation; flooding; rectangular channel;

    机译：临界热通量;加热长度相关性洪水;矩形通道;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号