کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4925931 1431589 2018 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of rectangular hot water tank position and aspect ratio on thermal stratification enhancement
ترجمه فارسی عنوان
تأثیر موقعیت مخزن آب گرم مستطیلی و نسبت ابعاد بر میزان ترشح حرارتی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Thermal stratification is an important factor increasing the efficiency of hot water storage tanks used for thermal energy storage. In this study, the effects of the position of a rectangular hot water tank and the aspect ratio on the thermal stratification were investigated numerically. In this direction, a numerical analysis was carried out for the different angle of the water tank with the horizontal axis (α) and the different aspect ratio of the water tank (D/H). Numerical analyses were performed at 0-60° range of angle values and 0.5-1 range of aspect ratio values. The results obtained from the analyses indicate that positioning of the hot water tank at different values from α = 0° provides thermal stratification enhancement. Reducing the aspect ratio of the tank contributes to the thermal stratification only for the angle of α = 0° significantly. In other angle values, the influence of different aspect ratios on the thermal stratification is negligible level. The highest temperature difference in the hot water tank occurred for the angle of α = 45° and aspect ratio of D/H = 0.5.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 116, Part A, February 2018, Pages 639-646
نویسندگان
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