首页> 外文期刊>Journal of the Institution of Engineers (Inida). Aerospace Engineering Division Board >Heat Transfer and Frictional Characteristics of Rectangular Channel Air Heater Duct Having Protrusion as Roughness Elements
【24h】

Heat Transfer and Frictional Characteristics of Rectangular Channel Air Heater Duct Having Protrusion as Roughness Elements

机译:以凸出为粗糙元件的矩形通道空气加热器管道的传热和摩擦特性

获取原文
获取原文并翻译 | 示例
           

摘要

An experimental investigation has been carried out to see the effect of roughness element on heat transfer and friction factor on the absorber plate of the solar air heater. The roughness provided is in the form of protrusions which are arranged in an arc pattern. This paper presents an investigation to study the effect of protruded geometry on heat transfer coefficient and friction factor in an artificially roughened solar air heater duct. The protrusions forming an arc having an arc angle (a) of 60° which is mounted on the test section of duct to create turbulent flow through the test section. Measurements are carried out for rectangular duct of having aspect ratio (W/H) of 11 and Reynolds number (Re) ranges from 3,500 to 18,000. The results obtained for various relative roughness pitch (P/e) has been compared with smooth one.
机译:已经进行了实验研究,以观察粗糙度元素对太阳能空气加热器的吸收板上的传热和摩擦系数的影响。所提供的粗糙度是呈弧形布置的突起的形式。本文提出了一项研究,以研究凸出的几何形状对人工粗糙化的太阳能空气加热器管道中的传热系数和摩擦系数的影响。形成弧度为60°的弧的突起安装在管道的测试部分上,以产生通过测试部分的湍流。对长宽比(W / H)为11且雷诺数(Re)为3500至18,000的矩形风管进行测量。将各种相对粗糙度螺距(P / e)所得的结果与光滑的螺距进行了比较。

著录项

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