| 太阳能热气流发电系统流道优化研究 |
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| 引用本文： | 彭维,明廷臻,刘伟,许国良.太阳能热气流发电系统流道优化研究[J].华中科技大学学报(自然科学版),2007,35(1):80-82. |
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| 作者姓名： | 彭维 明廷臻 刘伟 许国良 |
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| 作者单位： | 1. 武汉船舶职业技术学院,动力系,湖北,武汉,430050
2. 华中科技大学,能源与动力工程学院,湖北,武汉,430074 |
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| 基金项目： | 教育部科学技术研究重点项目 |
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| 摘 要： | 基于相对压力概念,构建了太阳能热气流发电系统新数学模型,并对西班牙太阳能热气流电站模型进行数值模拟,分析了其流场和温度场,并据此对原始模型进行优化.计算结果表明:通过对发电系统集热棚出口和烟囱进口的局部流道进行优化,使烟囱进口处局部流速增大约14%,温度场更加均匀,相对压力减小约50%,提高了系统做功能力和能量转换效率,同时减上蒂统能量损失.数值模拟结果为太阳能热气流发电系统的设计和应用提供理论依据.
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| 关 键 词： | 太阳能热气流发电系统 相对压力 透平 集热棚 能量转换效率 太阳能 热气流 发电 系统流 优化研究 systems power plant solar dimensions geometric optimization on 理论 应用 设计 模拟结果 数值模拟 能量损失 能量转换效率 做功能力 均匀 |
| 文章编号： | 1671-4512(2007)01-0080-03 |
| 修稿时间： | 12 26 2005 12:00AM |
Research of the optimization on the geometric dimensions of the solar chimney power plant systems |
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| Peng Wei,Ming Tingzhen,Liu Wei,Xu Guoliang.Research of the optimization on the geometric dimensions of the solar chimney power plant systems[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2007,35(1):80-82. |
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| Authors: | Peng Wei Ming Tingzhen Liu Wei Xu Guoliang |
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| Institution: | 1 Departement of Power and Energy, Wuhan Institute of Shipbuilding Technology, Wuhan 430050, China; 2 College of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 730074, China |
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| Abstract: | Based on the concept of relative static pressure, a new mathematical model has been set up to analyze the solar chimney power plant systems. Using the solar chimney prototype in Spain as a practical example, the numerical studies are performed to explore a betterment model according to the velocity, pressure and temperature profiles. The simulation results show that, by optimizing the local geometric dimensions between the collector outlet and the chimney inlet, the local velocity at this place increases by 14 %, the temperature profiles are more uniform, and the relative static pressure decreases about 50 %, which will improve the ability of energy conversion of the system and reduce the energy losses. The results present a guidance to design a large-scale solar chimney power plant. |
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| Keywords: | solar chimney power plant systems relative static pressure turbine collector energy conversion efficiency |
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