| 300MW直接空冷凝汽器污垢热阻对换热面积影响 |
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| 引用本文： | 魏栋,王建平,吴鹏,王宏明.300MW直接空冷凝汽器污垢热阻对换热面积影响[J].电力科学与工程,2012,28(2):51-55. |
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| 作者姓名： | 魏栋 王建平 吴鹏 王宏明 |
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| 作者单位： | 山西兆光发电有限责任公司,山西霍州,031400 |
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| 摘 要： | 根据传热学基本公式Qn=KA△tm,通过迭代计算出换热系数K,进而得到换热面积的数学模型.并以某300 MW直接空冷机组为例,充分考虑污垢热阻对换热面积的影响,得到对应的变化曲线,对直接空冷凝汽器换热面积的设计计算具有一定的参考价值.
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| 关 键 词： | 直接空冷凝汽器 污垢热阻 换热面积 特性曲线 |
Study on Effect of Heat Transfer Area of Direct Air Cooling Condenser by Radiation Dirt Thermal Resistance |
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| Wei Dong
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Wang Jianping
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Wu Peng
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Wang Hongming.Study on Effect of Heat Transfer Area of Direct Air Cooling Condenser by Radiation Dirt Thermal Resistance[J].Power Science and Engineering,2012,28(2):51-55. |
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| Authors: | Wei Dong Wang Jianping Wu Peng Wang Hongming |
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| Affiliation: | (Shanxi Dragon Power Generation Co.,Ltd.,Huozhou 031400,China) |
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| Abstract: | According to heat transfer theory fundamental formula Qn=KAΔtm,and through iterative computation,get the heat transfer coefficient K,and the mathematical model of heat transfer area.Take the 300 MW direct air cooling unit for example;calculate the heat transfer area under the design condition.And fully consider the influence of radiation dirt thermal resistance on heat transfer area,to obtain the change curve of heat transfer area,and it may provide reference information for the design calculations of condenser heat transfer area of direct air cooling unit. |
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| Keywords: | direct air cooling condenser dirt thermal resistance heat transfer area characteristic curve |
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