کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6686294 | 501870 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigation on the energy and exergy performance of a coiled tube solar receiver
ترجمه فارسی عنوان
بررسی تجربی انرژی و عملکرد اضافی یک گیرنده خورشیدی لوله
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کلمات کلیدی
گیرنده خورشیدی، اگزرژی، بهره وری انرژی، انتقال گرما، تابش،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
In this article, an experimental investigation is carried out to examine the heat transfer characteristics of a coil type solar dish receiver under actual concentrate solar radiation conditions. During the test, the concentrated solar flux is approximately 1000Â kW/m2 at aperture. The solar irradiance is almost unchanged (650Â W/m2) for continuous two hours in the afternoon, which is used to analyze the energy and exergy performance of the solar receiver. Experimental results show that, the efficiency of the solar receiver is normally above 70% with the highest efficiency of 82%, whereas at steady state, the efficiency is maintained at around 80%. A very low value of the heat loss factor (0.02Â kW/K) could be achieved during the current steady state operating conditions. The highest value of the exergy rate is around 8.8Â kW, whereas the maximum energy rate can reach 21.3Â kW. In addition, the highest exergy efficiency is approximately 28%, and the highest energy efficiency is around 82%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 156, 15 October 2015, Pages 519-527
Journal: Applied Energy - Volume 156, 15 October 2015, Pages 519-527
نویسندگان
Jianqin Zhu, Kai Wang, Hongwei Wu, Dunjin Wang, Juan Du, A.G. Olabi,