کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7934941 | 1513046 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Daily, monthly and yearly performance of a linear Fresnel reflector
ترجمه فارسی عنوان
عملکرد روزانه، ماهانه و سالانه یک بازتابنده خطی فرسلین
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کلمات کلیدی
بازتابنده فرنل خطی، عملکرد روزانه، متوسط اصلاح زاویه حاد، عملکرد سالانه،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
The main objective of this study is to investigate the daily performance of a linear Fresnel reflector in energetic and exergetic terms. The collector is designed and examined in SolidWorks Flow Simulation in order to obtain the optical and thermal efficiency curves. These data are inserted in a developed numerical dynamic model for the prediction of the daily performance of the solar collector which is coupled to a storage tank. The collector has total aperture 27â¯m2, concentration ratio 20.46 and the storage tank volume is 3â¯m3. The system is investigated for twelve typical days, one for each month, and its yearly performance is determined by taking into consideration only the sunny days of every month. According to the final results, the mean yearly incident angle modifier is found to be 37% while the maximum yearly exergy efficiency is 8.0% when the system starts with 450â¯K inlet temperature at the morning. For this case, the mean yearly thermal efficiency is found to be 18.5% and also June is the month with the highest thermal and exergy outputs. Furthermore, it is important to state that the mean daily incident angle modifier is found to be the 81% of the maximum daily incident angle modifier for all the months.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 173, October 2018, Pages 517-529
Journal: Solar Energy - Volume 173, October 2018, Pages 517-529
نویسندگان
Evangelos Bellos, Christos Tzivanidis, Angelos Papadopoulos,