کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6689912 501892 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of filler distribution for organic phase change material composites: Numerical investigation and entropy analysis
ترجمه فارسی عنوان
بهینه سازی توزیع پرکننده برای مواد کامپوزیتی تغییر فاز آلی: بررسی عددی و آنتروپی تجزیه و تحلیل
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
Organic phase change materials have been attracting great attentions for their promising potential in thermal energy storage applications. Due to their poor thermal conductivity and thermal diffusivity, thermally conductive fillers are often added to form composites to enhance the thermal performance. To achieve the optimized performance without sacrificing the thermal capacity, a novel numerical methodology has been developed to model the thermal behavior of phase change material composites, which has been validated by the experimental results for pure n-octadecane and n-octadecane/expanded graphite composites. Effects of different filler concentration distributions have been analyzed and compared. It is found that the phase change time is significantly affected by the filler distribution. An optimal polynomial filler distribution can reduce the phase change time by more than 50% with the same filling content, compared with the uniform distribution. Entropy analysis indicates that a shorter phase change time is correlated with a lower entropy generation rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 132, 1 November 2014, Pages 543-550
نویسندگان
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