کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5451049 1513075 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical model to evaluate the flow distribution in a large solar collector field
ترجمه فارسی عنوان
یک مدل عددی برای ارزیابی توزیع جریان در یک میدان کلکتور خورشیدی بزرگ
کلمات کلیدی
گرداورنده خورشیدی، میدان گردآوری خورشیدی، تعادل جریان، توزیع جریان، اتصال موازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This study presents a numerical model to evaluate the flow distribution in a large solar collector field, with solar collectors connected both in series and in parallel. The boundary conditions of the systems, such as flow rate, temperature, fluid type and layout of the collector field can be easily changed in the model. The model was developed in Matlab and the calculated pressure drop and flow distribution were compared with measurements from a solar collector field. A good agreement between model and measurements was found. The model was then used to study the flow distribution in different conditions. Balancing valves proved to be an effective way to achieve uniform flow distribution also in conditions different from those for which the valves were regulated. For small solar collector fields with limited number of collector rows connected in parallel, balancing valves are not strictly necessary if the pressure drop across the collector rows is much higher than the pressure drop along the longest distribution pipe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 143, February 2017, Pages 31-42
نویسندگان
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