Structural Optimization of Solar Chimney Power Plant by a Genetic Algorithm

被引：2
|
作者：
Huang M. [1 ,2 ]
Liu G. [3 ]
He Y. [2 ]
Li A. [1 ]
Tao W. [2 ]
机构：
[1] School of Building Services Science and Engineering, Xi'an University of Architecture and Technology, Xi'an
[2] Key Laboratory of Thermo-Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an
[3] China Railway First Survey and Design Institute Group Co. Ltd., Xi'an
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2021年 / 55卷 / 10期
关键词：
Genetic algorithm; Solar chimney power plant; Structure optimization;
D O I：
10.7652/xjtuxb202110001
中图分类号：
学科分类号：
摘要：
A theoretical model of solar chimney power plant (SCPP) considering the system irreversible losses is presented to study the relationship between the geometrical parameters and the output power of the SCPP. Firstly, the proposed theoretical model is verified with the experimental data of Manzanares SCPP in Spain. Results show that the model predicts the system output power well, and the output power of the system is overestimated by about 24% without taking the irreversible losses of the system into account. Then, the model is used to analyze the sensitivity parameters of the heat collection shed radius and the height and radius of the chimney. The results show that when the radius of the heat collection shed increases to an inflection point, the construction cost still increases approximately linearly, but the performance of the system does not change appreciably. Increasing the chimney height is more helpful to improve the output power and thermal efficiency of the system than increasing the collector radius. When the chimney radius increases to a certain extent, the output power of the system tends to be stable, the updraft velocity keeps decreasing, but the mass flow rate of the system increases significantly. Finally, by using a genetic algorithm, multi-objective structural optimization programs of the SCPP are developed based the proposed theoretical model and the building cost model. Structural optimization of the Manzanares pilot power plant shows that the optimized total construction cost is 2.47 times that of the prototype, but the output power is 3.91 times that of the prototype. The research results can provide theoretical guidance for the design of the SCPP. © 2021, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
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页码：1 / 10
页数：9
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