• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Hydrocarbon condensation in horizontal smooth tubes: Part Ⅰ - Measurements
【24h】

Hydrocarbon condensation in horizontal smooth tubes: Part Ⅰ - Measurements

机译：水平光滑管中的碳氢化合物冷凝：第一部分-测量

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

This paper presents the results from an experimental investigation of propane condensing inside horizontal tubes at three mass fluxes, two tube diameters and reduced pressures of 0.25-0.95. These conditions represent the saturation pressures and mass fluxes of most interest to the process and HVAC&R industries. In this first part, Part 1, of a two-part study, the trends in heat transfer coefficient and frictional pressure gradient for these conditions are discussed and comparisons with available models from the literature are made. A small increase in heat transfer coefficient with tube diameter is observed for the specific tube diameters range studied, which is different from the trend predicted by most correlations. High-speed flow visualization results from a previous study, conducted using the same test facility, are used to explain the trend with tube diameter. No heat transfer coefficient correlation from the literature predicted all the results from the present study adequately; notably, all correlations perform increasingly poorly at higher reduced pressures. Also, no correlation from the literature adequately predicts the frictional pressure drops measured in this study. In the companion paper, Part II, the heat transfer and pressure drop results from this paper are used to develop correlations applicable to a wide range of operating conditions.
机译：本文介绍了在三个质量通量，两个管径和0.25-0.95的减压下丙烷在水平管内冷凝的实验研究结果。这些条件代表了过程和HVAC＆R行业最感兴趣的饱和压力和质量通量。在由两部分组成的研究的第一部分中，第一部分讨论了在这些条件下传热系数和摩擦压力梯度的趋势，并与文献中的可用模型进行了比较。在所研究的特定管径范围内，观察到传热系数随管径的微小增加，这与大多数相关性预测的趋势不同。使用相同的测试设备进行的先前研究的高速流动可视化结果可用来解释管径的趋势。没有文献的传热系数相关性可以充分预测本研究的所有结果。值得注意的是，所有相关性在较高的减压下表现越来越差。而且，文献中没有相关性可以充分预测本研究中测得的摩擦压降。在随附的第二部分论文中，本文的传热和压降结果用于建立适用于各种运行条件的相关性。

著录项

  • 来源
  • 作者

    Malcolm Macdonald; Srinivas Garimella;

  • 作者单位

    Sustainable Thermal Systems Laboratory, GWW School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States;

    Sustainable Thermal Systems Laboratory, GWW School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States,Georgia Institute of Technology, GWW School of Mechanical Engineering, Love Building, Room 340, 801 Ferst Drive, Atlanta, GA 30332, United States;

  • 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

    In-tube condensation; Experiments; Hydrocarbons; Propane; Pressure drop; Heat transfer;

    机译：管内冷凝;实验;碳氢化合物;丙烷压力下降;传播热量;

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