Efficiency improvement on solar chimney energy system using stationary Obstacles
محل انتشار: هجدهمین کنفرانس دینامیک شاره ها
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 388
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شناسه ملی سند علمی:
CFD18_008
تاریخ نمایه سازی: 5 بهمن 1398
چکیده مقاله:
Due to recent veritable concerns over deployment of fossil energy sources, investigations on re-newable energy have drastically increased over the last decades. Since, solar energy is considered among the fast growing renewable energy sources, researchers and industry decision makers are in constant effort to improve energy conversion efficiency for these systems. In this study, a solar chimney energy system has been simulated in two cases. The main target of this study is to en-hance the efficiency of a solar chimney power plant by making some changes in the internal geo-metry of the SCPP. In this regard, Computational fluid dynamic approach has been utilized to si-mulate the flow field of a pilot case and the results showed suitable agreement with the experimen-tal data. Flow guiding obstacles with rectangular and triangular profiles have been used to im-prove the heat transfer within the system and increase the velocity of airflow through the turbine. The results indicate that rectangular and triangular obstacle will lead to efficiency improvements equal to 49.2 and 72.8% respectively.
کلیدواژه ها:
نویسندگان
Reza Razaghi
Assistant Professor, Department of Mechanical and Aerospace Engineering, Garmsar Branch, Islamic Azad University, Garmsar, Iran
Keyvan Geshnizjani
M.Sc. student, Mechanical Engineering, Damavand Branch, Islamic Azad University, Damavand, Iran,
Vanand Issadjan
BSc mechanical engineering, Damavand branch,Islamic Azad university, Damavand, Iran