| 板式省煤器通道结构对换热特性的影响 |
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| 引用本文： | 吴俐俊,袁志成,王小柳,鞠贵冬.板式省煤器通道结构对换热特性的影响[J].同济大学学报(自然科学版),2016,44(8):1248-1252. |
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| 作者姓名： | 吴俐俊 袁志成 王小柳 鞠贵冬 |
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| 作者单位： | 同济大学 机械与能源工程学院，上海 201804,同济大学 机械与能源工程学院，上海 201804,同济大学 机械与能源工程学院，上海 201804,同济大学 机械与能源工程学院，上海 201804 |
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| 摘 要： | 通过软件Fluent数值模拟与试验验证,研究全焊式板式省煤器在不同结构参数和烟气流速情况下的传热特性.结果表明,当换热器椭圆水流道长轴为30mm,循环水流道的短长轴比为0.6,板间烟气流道间距控制在15mm,且烟气流速控制在8m·s~(-1)时,全焊式板式省煤器的综合换热系数达到50 W·(m~2·K)~(-1).
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| 关 键 词： | 板式省煤器 传热特性 数值模拟 试验 |
| 收稿时间： | 2015/12/2 0:00:00 |
| 修稿时间： | 2016/5/27 0:00:00 |
Effect of Channel Structure for Board Economizer on Heat Transfer Characteristics |
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| WU Lijun,YUAN Zhicheng,WANG Xiaoliu and JU Guidong.Effect of Channel Structure for Board Economizer on Heat Transfer Characteristics[J].Journal of Tongji University(Natural Science),2016,44(8):1248-1252. |
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| Authors: | WU Lijun YUAN Zhicheng WANG Xiaoliu and JU Guidong |
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| Abstract: | The heat transfer characteristics of all welded plate economizer in different structure parameters and flue gas velocities were numerically simulated using Fluent and experimentally verified. The results show that the whole welding type plate heat exchanger whose major axis of the ellipse is 30 mm has the highest heat transfer coefficient, when the ratio of the short long shaft is 0.6, the flow path in inter board spacing of flue gas is controlled at 15 mm, and the rate of flue gas flowing is in 8 m?s-1. The highest heat transfer coefficient is about 50 W?(m2?K)-1. |
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