Structural Optimization of Solar Chimney Power Plant by a Genetic Algorithm

doi:10.7652/xjtuxb202110001

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Structural Optimization of Solar Chimney Power Plant by a Genetic Algorithm

更新时间：2025-07-09

- Structural Optimization of Solar Chimney Power Plant by a Genetic Algorithm
- Vol. 55, Issue 10, Pages: 1-10(2021)
- 作者机构：
  
  1. 西安建筑科技大学建筑设备科学与工程学院,西安,710055
  2. 西安交通大学热流科学与工程教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202110001
  CLC： TK121
- Online First：10 October 2021，
  
  Published：2021
- 稿件说明：
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Structural Optimization of Solar Chimney Power Plant by a Genetic Algorithm[J]. 2021, 55(10): 1-10.
DOI：

Structural Optimization of Solar Chimney Power Plant by a Genetic Algorithm[J]. 2021, 55(10): 1-10. DOI： 10.7652/xjtuxb202110001.

摘要

为了研究太阳能烟囱发电站的几何参数与其输出功率之间的关系

本文提出了一个考虑系统不可逆损失的太阳能烟囱发电站理论分析模型。首先用西班牙Manzanares太阳能烟囱试验电站的实验数据验证所建立的理论模型的可靠性

结果表明该理论模型能较好地预测系统输出功率

不考虑系统不可逆损失时系统输出功率会高约24%。然后利用该理论模型对集热棚半径、烟囱高度和烟囱半径进行参数敏感性分析

结果表明:集热棚半径增大到一个“拐点”后建筑成本依然近似线性增长但系统各项性能变化不明显; 增加烟囱高度要比增加集热棚半径更有助于系统输出功率和热效率的提高; 烟囱半径增大到一定程度后系统输出功率趋于稳定

上升气流速度不断减小但系统质量流量显著增大。最后基于遗传算法利用提出的理论模型和建筑成本模型开发了太阳能烟囱发电站的多目标结构优化程序。对西班牙Manzanares太阳能烟囱试验电站进行结构优化

优化后总建筑成本是原型的2.47倍

但是输出功率可达到原型的3.91倍。该研究内容可为太阳能烟囱发电站的设计提供理论指导。

Abstract

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.

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references

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