Inclined solar chimney for power production
Inclined solar chimney for power production
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DOI：
10.1016/j.enconman.2011.05.001
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发表时间：
2011-09
影响因子：
10.4
通讯作者：
S. Panse;A. Jadhav;Ajitkumar S. Gudekar;J. Joshi
中科院分区：
文献类型：
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作者：
S. Panse;A. Jadhav;Ajitkumar S. Gudekar;J. Joshi
目前太阳能烟囱的概念是一个高大的垂直烟囱，建在一个大区域的中心，这是集热器。这就产生了关于烟囱的稳定性和经济可行性的问题，也需要复杂的工程技术来建造一个高烟囱。我们建议采用“倾斜太阳烟囱”（ISC）的几何形状，它沿着一座高耸的山的表面建造，全年最大的太阳日照都发生在这里。烟囱和收集器在这里合并。这使得结构稳定，成本效益高，施工方便。建立了考虑总能量平衡的数学模型。在其他参数的一些选定值下，它可以预测出气流的温度、速度和动能。该模型还显示了吸收的太阳能分成不同形式的比例，从而预测了新气流的动力学与烟囱尺寸和所用材料性能的关系。此外，研究表明，外部风增强了新兴空气的动能。因此，ISC也可以利用山顶上的风能。
The present concept of solar chimney is a tall vertical chimney constructed at the center of a large area, which is the collector. This creates questions about stability and economic viability of the chimney and also demands elaborate engineering techniques for constructing a tall chimney. We suggest geometry of “Inclined Solar Chimney” (ISC), which is constructed along the face of a high rising mountain, on which maximum solar insolation is incident throughout the year. The chimney and the collector get merged here. This makes the structure stable, cost effective and easy for construction. A mathematical model has been developed considering the total energy balance. It predicts the temperature and velocity and kinetic power of the emerging air draft for some chosen values of other parameters. The model also shows the proportion in which absorbed solar energy is divided into different forms, and hence predicts the dependence of kinetic of emerging air draft upon dimensions of the chimney and properties of materials used. Further, it is shown that external winds enhance the kinetic power of the emerging air. Thus ISC can also harness the wind energy, available at the top of the mountain.