کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8076916 | 1521470 | 2014 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analytical tools for calculating the maximum heat transfer of annular stepped fins with internal heat generation and radiation effects
ترجمه فارسی عنوان
ابزار تحلیلی برای محاسبه حداکثر انتقال حرارت از باله های گام به گام با تولید گرما و اثرات تابش داخلی
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کلمات کلیدی
روش های تحلیلی، فین ردیف، تولید گرما داخلی، بهینه سازی، تابش،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
ASFs (Annular stepped fins) require less material than ADFs (annular disc fins) while retaining the ability to produce the same cooling rate in a convection environment. A simple analysis was developed for ASFs that considered radiative heat transfer and heat generated by a nuclear reactor through linearization of the radiation terms. The linearized equations were solved by exact and approximate analytical methods. Without any linearization, a new closed-form analysis was established for the temperature profile with the help of the differential transform method. An integral differential transform method was introduced to determine the actual heat-transfer rate when heat was generated inside an ASF under nonlinear radiation surface conditions. The temperature results obtained using this analytical approach were compared with those obtained from a finite-difference analysis, and were in excellent agreement. The fin performance was defined as a function of the heat generated for a given set of design conditions. An optimization study with varying heat generation was carried out to compare the performance of ADFs and ASFs, which highlighted the superior aspects of an annular fin design.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 76, 1 November 2014, Pages 733-748
Journal: Energy - Volume 76, 1 November 2014, Pages 733-748
نویسندگان
Balaram Kundu, Kwan-Soo Lee,