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过程工程学报 ›› 2018, Vol. 18 ›› Issue (1): 41-48.DOI: 10.12034/j.issn.1009-606X.217198

• 流动与传递 • 上一篇    下一篇

三维管烟气换热器传热特性的实验及模拟研究

莫 逊1,2,3,4*, 朱冬生1,3,4, 林成迪1,3,4     

  1. 1. 中国科学院广州能源研究所,广东 广州 510640;2. 大冶斯瑞尔换热器有限公司,湖北 大冶 435100; 3. 中国科学院可再生能源重点实验室,广东 广州 510640;4. 广东省新能源和可再生能源研究开发与应用重点实验室,广东 广州 510640
  • 收稿日期:2017-03-30 修回日期:2017-06-13 出版日期:2018-02-22 发布日期:2018-01-29
  • 通讯作者: 莫逊
  • 基金资助:
    高效传热与节能减排集成技术团队;高效紧凑式低低温节能空冷岛

Experimental and Numerical Research on Heat Transfer Characteristics of Three-dimensional Flue Gas Heat Exchanger

Xun MO1,2,3,4*,  Dongsheng ZHU1,3,4,  Chengdi LIN1,3,4     

  1. 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China; 2. Daye Sreal Heat Exchanger Co., Ltd., Daye, Hubei 435100, China; 3. Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China; 4. Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, Guangdong 510640, China
  • Received:2017-03-30 Revised:2017-06-13 Online:2018-02-22 Published:2018-01-29

摘要: 通过实验对三维管换热元件与传统H型鳍片管进行测试,研究其传热特性. 结果表明,三维管换热器的总换热系数是H型鳍片管换热器的2?3倍,采用错列布置换热管比顺列布置换热管的阻力大. 修正的气侧对流换热系数关联式更符合实际,计算结果比原式提高约26%,FLUENT软件能很好模拟三维管换热器的实际情况,模拟结果误差较小.

关键词: 烟气换热器, 三维管, 总换热系数, 对流换热系数, 数值模拟

Abstract: A comprehensive and detailed test had been performed for three-dimensional tube exchange components and traditional H-type fin tube through a prototype to investigated their heat transfer characterization. The results showed that the total heat transfer coefficient of the three-dimensional tube heat exchanger is 2 to 3 times that of the H-type fin tube heat exchanger, and the resistance of the heat exchanger in staggered arrangement was bigger than that of in-line arrangement. Besides, the modified correlation of gas side convective heat transfer was more realistic, and the calculated result is about 26% higher than that of the original correlation. FLUENT software can simulate the actual situation of three-dimensional tube heat exchanger, and the simulation results error is relatively small.

Key words: flue gas heat exchanger, three-dimensional tube, total heat transfer coefficient, convective heat transfer coefficient, numerical simulation