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Evaluation of solar-chimney power plants with multiple-angle collectors | ||
| Journal of Computational & Applied Research in Mechanical Engineering (JCARME) | ||
| مقاله 8، دوره 8، شماره 1 - شماره پیاپی 15، آذر 2018، صفحه 85-96 اصل مقاله (1.72 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22061/jcarme.2017.2282.1213 | ||
| نویسندگان | ||
| hamideh Hoseini1؛ ramin mehdipour* 2 | ||
| 1MSc Student, Department of Mechanical Engineering, Tafresh University, Tafresh, Iran | ||
| 2Assistant Professor Faculty of Mechanical Engineering Tafresh University Tafresh, Iran | ||
| تاریخ دریافت: 14 بهمن 1395، تاریخ بازنگری: 09 مهر 1396، تاریخ پذیرش: 11 آذر 1396 | ||
| چکیده | ||
| Solar chimney power plants are plants based on solar thermal power including three parts of collector, chimney and turbine, which is able to produce electrical energy. One of the effective parameters in increasing the power production is the collector angles versus horizon. In the present study, a numerical analysis of a solar chimney power plant for different angles of the collector (divergent, convergent and horizontal type collector) is proposed. The introduced numerical model uses mathematical models of heat transfer. In this regard, effect of various angles of the three considered collectors on temperature distribution and power production of the solar chimney is evaluated. Divergent type collectors produce more power than convergent and horizontal collectors, as they produce more velocity and mass flow rates. It will be shown that by increasing the angle of divergent-type collector (keeping the inlet height constant), the power production will be increased and the output temperature will be decreased, in a way that the angle variation of 0.8 to 1 will increase the divergent type collector output power by 11 % and will decrease the output temperature by 0.78%. In the other case, when the output height is kept constant and the collector angle changes, performance of the divergent type collector is better than the other two collectors. Power production in a constant mean height is shown to be 3 times and 1.5 times more than the convergent and horizontal collectors respectively. | ||
| کلیدواژه‌ها | ||
| Solar-chimney power plant؛ renewable energy؛ collector؛ chimney | ||
| مراجع | ||
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