Energetic and exergetic evaluation of conventional and sloped solar chimney power plants
Energetic and exergetic evaluation of conventional and sloped solar chimney power plants
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DOI：
10.1109/irec.2016.7478888
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发表时间：
2016-03
期刊：
影响因子：
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通讯作者：
H. Atia;A. Snoussi;A. Benbrahim;A. Ilinca;R. Boukchina
中科院分区：
文献类型：
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作者：
H. Atia;A. Snoussi;A. Benbrahim;A. Ilinca;R. Boukchina
利用ANSYS Fluent软件对集热器坡度对太阳能烟囱性能的影响进行了CFD分析。研究了分别对应于0°、2.5°和5°倾角的三种太阳能烟囱构型，命名为A、B和C。三种配置的集热器半径和烟囱高度均固定为495 m。对于所研究的三种配置，压力比固定为0.9，太阳辐射从200 W/m2到1100 W/m2不等。结果表明，增大集热器屋顶的倾斜角度可以提高太阳能烟囱的热力性能。事实上，从倾斜的太阳能烟囱发电厂（SSCPP）提取的功率，能量和（火用）效率的过程中增加的倾斜角度和太阳辐射值。
A CFD analysis using ANSYS Fluent software was conducted to study the effects of collector slope on solar chimney's performances. Three solar chimney configurations, named A, B and C, which correspond to a slope of 0°, 2.5° and 5°, respectively, were studied. Both collector Radius and chimney height were fixed to 495m for the three configurations. For the three studied configurations, the pressure ratio was fixed to 0.9 and the solar radiation was varied from 200 W/m2 to 1100 W/m2. The results show that the thermodynamic performances of the solar chimney were enhanced by increasing the inclination angle of the collector roof. In fact, the power extracted from a sloped solar chimney power plant (SSCPP), the energetic and the exergetic efficiencies of the processes increase with increasing the inclination angle and the solar radiation value.