Critical evaluation of solar chimney power plant performance
Critical evaluation of solar chimney power plant performance
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DOI：
10.1016/j.solener.2005.04.001
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发表时间：
2006-01-01
期刊：
影响因子：
6.7
通讯作者：
Kröger, DG
中科院分区：
文献类型：
--
作者：
Pretorius, JP;Kröger, DG
本文评估了最近发展的对流传热方程、更精确的涡轮机入口损失系数、优质集热器屋顶玻璃和各种类型的土壤对大型太阳能烟囱发电厂性能的影响。结果表明，新的传热方程显着降低工厂的功率输出。更精确的涡轮机入口损失系数的影响是微不足道的，而使用更好质量的玻璃提高了工厂的发电量。采用石灰岩和砂岩土壤的模型产生的结果与基于花岗岩的模型几乎相似。植物收集器的高度被发现不同于先前获得的最佳值。(C)2005爱思唯尔有限公司保留所有权利。
This paper evaluates the influence of a recently developed convective heat transfer equation, more accurate turbine inlet loss coefficient, quality collector roof glass and various types of soil on the performance of a large scale solar chimney power plant. Results indicate that the new heat transfer equation reduces plant power output considerably. The effect of a more accurate turbine inlet loss coefficient is insignificant, while utilizing better quality glass enhances plant power production. Models employing Limestone and Sandstone soil produce virtually similar results to a Granite-based model. The plant collector height is found to differ from previously obtained optimal values. (C) 2005 Elsevier Ltd. All rights reserved.