| 浙江苍南电厂冷却水温排放的数值模拟 |
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| 引用本文： | 张舒羽,黄世昌,韩海骞. 浙江苍南电厂冷却水温排放的数值模拟[J]. 海洋学研究, 2009, 27(3): 61-66 |
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| 作者姓名： | 张舒羽 黄世昌 韩海骞 |
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| 作者单位： | 浙江省水利河口研究院,浙江,杭州,310020 |
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| 摘 要： | 电厂排放的冷却水水量大且热量高,其排放的热水将引起周围水域水温的升高,导致不同程度的热污染.针对浙江苍南电厂附近海域水流和污染物的对流扩散特点,采用MIKE21软件对电厂温排水进行数值模拟,分析不同潮型、不同流量及不同季节下的最大温升包络面积和取水口的温升变化.研究结果表明,电厂冷却水温排放的最大温升包络面积范围与流速和水深的关系密切.从本工程的情况来看,在高温升(4 ℃)区以保证率为97%的低水位潮型下的最大温升包络面积为最大,达0.69 km2,大潮、中潮和小潮相应的面积分别为0.63、0.66和0.48 km2;在低温升(0.5 ℃)区以小潮相应的面积为最大,达14.96 km2,中潮、大潮和保证率为97%的低水位潮型相应的面积分别为13.48、10.30和6.90 km2.温升包络面积与电厂冷却水的排放量不为线性关系.冬季电厂冷却水排放的温升包络面积大于夏季,冬季4 ℃温升包络面积是夏季的3倍,其它各级温升包络面积为夏季的1.1～1.4倍.由于取排水口被挡沙防浪堤隔开,故取水口区域的温升较小.研究成果可为电厂的建设提供依据.
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| 关 键 词： | 温排放 数值模拟 温升 浙江苍南电厂 |
Numerical simulation of the cooling water discharge of Zhejiang Cangnan power plant |
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| ZHANG Shu-yu,HUANG Shi-chang,HAN Hai-qian. Numerical simulation of the cooling water discharge of Zhejiang Cangnan power plant[J]. Journal of Marine Sciences, 2009, 27(3): 61-66 |
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| Authors: | ZHANG Shu-yu HUANG Shi-chang HAN Hai-qian |
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| Affiliation: | ZHANG Shu-yu,HUANG Shi-chang,HAN Hai-qian(Zhejiang Institute of Hydraulics , Estuary,Hangzhou 310020,China) |
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| Abstract: | When a power plant is in operation,the waste heat of cooling circulating water is discharged into the neighbor sea area,causing heat impact on the water mass.The capacity of power plant and zoologyecology of the sea is directly related to the degree of thermal effect.According to the characteristics of current and convection-diffusion of the sea area,warm water diffusion is simulated by Mike21 software.The mean-velocity in vertical of 9 tidal gauges is used for velocity validation.The calculation error of v... |
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| Keywords: | warm water disposal numerical simulation temperature rising Zhejiang Cangnan power plant |
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