• 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 >Effect of different nanoparticle shapes on shell and tube heat exchanger using different baffle angles and operated with nanofluid
【24h】

Effect of different nanoparticle shapes on shell and tube heat exchanger using different baffle angles and operated with nanofluid

机译：使用不同的挡板角度和纳米流体操作的不同纳米颗粒形状对管壳式换热器的影响

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

Nanofluid is a new engineering fluid which could improve the performance of heat exchanger. The aim of this paper is to study the effect of different particle shapes (cylindrical, bricks, blades, and platelets) on the overall heat transfer coefficient, heat transfer rate and entropy generation of shell and tube heat exchanger with different baffle angles and segmental baffle. Established correlations were used to determine the abovementioned parameters of the heat exchanger by using nanofluids. Cylindrical shape nano-particles showed best performance in respect to overall heat transfer coefficient and heat transfer rate among the other shapes for different baffle angles along with segmental baffle. An enhancement of overall heat transfer coefficient for cylindrical shape particles with 20° baffle angle is found 12%, 19.9%, 28.23% and 17.85% higher than 30°, 40°, 50° baffle angles and segmental baffle, respectively in corresponding to 1 vol.% concentration of Boehmite alumina (γ-AlOOH). Heat transfer rate is also found higher for cylindrical shape at 20° baffle angle than other baffle angles as well as segmental baffle. However, entropy generation decreases with the increase of volume concentration for all baffle angles and segmental baffle.
机译：纳米流体是一种新型工程流体，可以改善热交换器的性能。本文的目的是研究不同颗粒形状（圆柱形，砖形，叶片和片状）对不同挡板角和分段挡板的管壳式换热器的整体传热系数，传热速率和熵产生的影响。建立的相关性用于通过使用纳米流体来确定热交换器的上述参数。圆柱形状的纳米颗粒在总的传热系数和传热速率方面表现出最佳的性能，在其他形状中，对于不同的挡板角度和分段挡板。折流角为20°的圆柱状颗粒的整体传热系数分别比折流角30°，40°，50°和分段折流板分别高12％，19.9％，28.23％和17.85％。勃姆石氧化铝（γ-AlOOH）的体积百分比浓度。还发现，在20°挡板角度下，圆柱形状的传热速率高于其他挡板角度和分段挡板。但是，对于所有挡板角度和分段挡板，熵产生都随着体积浓度的增加而降低。

著录项

  • 来源
  • 作者

    M.M. Elias; I.M. Shahrul; I.M. Mahbubul; R. Saidur; N.A. Rahim;

  • 作者单位

    Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia,UM Power Energy Dedicated Advanced Centre (UMPEDAC), Level 4, Wisma R&D, University of Malaya, 59990 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia,UM Power Energy Dedicated Advanced Centre (UMPEDAC), Level 4, Wisma R&D, University of Malaya, 59990 Kuala Lumpur, Malaysia;

    UM Power Energy Dedicated Advanced Centre (UMPEDAC), Level 4, Wisma R&D, University of Malaya, 59990 Kuala Lumpur, Malaysia;

  • 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

    Shell and tube heat exchanger; Heat transfer rate; Overall heat transfer coefficient; Entropy generation; Nanofluid;

    机译：壳管式换热器;传热率总传热系数;熵产生;纳米流体;

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