广东工业大学学报 ›› 2012, Vol. 29 ›› Issue (3): 92-95.doi: 10.3969/j.issn.1007-7162.2012.03.018

• 综合研究 • 上一篇    下一篇

大温差管内对流换热实验研究

陈观生，李文丰，杜文杰，杨景泉，张莉，麦志豪   

  1. 广东工业大学 材料与能源学院，广东 广州510006
  • 收稿日期:2012-03-28 出版日期:2012-09-20 发布日期:2012-09-20
  • 作者简介:陈观生(1970-)，男，副教授，博士，主要研究方向为制冷、空调设备及太阳能技术.
  • 基金资助:

    国家自然科学基金资助项目（51146005）;广东工业大学创新基金资助项目（402102126）

Experimental Study of Heat Convection in Tubes with Big Temperature Difference

Chen Guansheng, Li Wenfeng, Du Wenjie, Yang Jingquan, Zhang Li, Mai Zhihao   

  1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2012-03-28 Online:2012-09-20 Published:2012-09-20

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摘要： 针对太阳能热发电系统中大温差管内对流换热研究较为缺少的情况，搭建了大温差管内对流换热实验装置并进行实验研究.重点研究了加热温度(温差)、热流体及其流速、吸热管管径等因素对管内对流换热过程的影响，得到了实验温度范围内管内对流换热的结果，拟合出了相应的实验关联式，可以用于相关换热设备的设计.

关键词: 大温差；对流；换热；太阳能

Abstract: In view of little research into heat convection in tubes with big temperature difference, which were used in the high temperature solar thermal system, an experimental apparatus with big temperature difference was built up, and a lot of experimental studies were conducted. The experimental data were tested at different heating temperatures (temperature difference), heat transfer fluids, HTFs flow rates and tube diameters, which influence the process of heat convection. The relationship equation has been obtained, which can be used for the design of similar heat transfer equipment.

Key words: big temperature difference; heat convection; heat transfer; solar energy

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