...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Energy >Numerical simulation study on the heat transfer characteristics of the tube receiver of the solar thermal power tower
【24h】

Numerical simulation study on the heat transfer characteristics of the tube receiver of the solar thermal power tower

机译：太阳能热塔塔管接收器传热特性的数值模拟研究

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

In a solar thermal power tower system, a molten salt tube receiver is a significant component. However, the tube flow performance is different with other tubes, half the circumference of the tube is heated with a different heat flux and half that circumference is insulated. As the properties of molten salt change with the temperature along the alloy tube wall, the distributions of temperature and heat flux and the heat transfer characteristics are very complex. The present study uses the computational fluid dynamics to reveal these phenomena. The results show that the temperature distribution of molten salt and tube wall are very uneven whether in an axial or radial direction, and the temperature of the inner tube wall is an important parameter for preventing the decomposition of molten salt. The heat flux of the heating surface increases with the increase of velocity; however, the situation is just the opposite for the adiabatic surface. The heat transfer coefficient is higher as compared with the Sieder-Tate equation. The value of the local Nu number is almost unchanged with the change of the cosine angle over all circumferential direction.
机译：在太阳能火力塔系统中，熔盐管接收器是重要的组成部分。但是，该管的流动性能与其他管不同，该管的一半圆周以不同的热通量加热，而另一半则被绝缘。随着熔融盐的性质随合金管壁温度的变化而变化，温度和热通量的分布以及传热特性非常复杂。本研究使用计算流体动力学来揭示这些现象。结果表明，无论沿轴向还是径向，熔盐和管壁的温度分布都很不均匀，而内管壁的温度是防止熔盐分解的重要参数。受热面的热通量随着速度的增加而增加。但是，绝热表面的情况恰好相反。与Sieder-Tate方程相比，传热系数更高。局部Nu值的值在整个圆周方向上随着余弦角的变化几乎不变。

著录项

  • 来源
    《Applied Energy》 |2012年第1期|p.142-147|共6页
  • 作者

    Xiaoping Yang; Xiaoxi Yang; Jing Ding; Youyuan Shao; Hongbo Fan;

  • 作者单位

    Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South China University of Technology, Guangzhou 510640, China,Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China;

    Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South China University of Technology, Guangzhou 510640, China,Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China;

    School of Engineering, Sun Yat-Sen University, Guangzhou 510006, China;

    Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China;

    Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China;

  • 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

    solar receiver; numerical simulation; heat flux; heat transfer characteristic;

    机译：太阳能接收器;数值模拟热通量传热特性;

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