کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6763703 | 1431571 | 2019 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigation on thermal properties and thermal performance enhancement of octadecanol/expanded perlite form stable phase change materials for efficient thermal energy storage
ترجمه فارسی عنوان
بررسی تجربی بر روی خواص حرارتی و بهبود عملکرد حرارتی از مواد اکتادیکنول / پرلیت گسترش یافته فاز ثابت فاز برای ذخیره انرژی کارآمد حرارتی
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کلمات کلیدی
مواد تغییر فاز ذخیره انرژی حرارتی، پرلیت گسترش یافته، گرافیت گسترش یافته، افزایش انتقال حرارت،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Octadecanol (OC) was employed as phase change material (PCM) to compound with expanded perlite (EP) because of its relatively high latent heat capacity (245.97â¯kJ/kg). OC/EP composites were prepared via vacuum impregnation method in this paper. The microstructure, chemical components and interactions that between two materials were characterized via Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). The leakage-proof properties of OC within the composites were investigated and the leakage phenomena were weakened by adding expanded graphite (EG) with mass fractions of 5%, 10% and 15%. The mass fraction of OC maintains 60% without any leakage after adding EG (mass fraction of 15%). Latent heat capacity and phase change temperature were tested via Differential Scanning Calorimeter (DSC). Latent heat capacity of 60% OC/EP/15EG is 140.20â¯kJ/kg, and phase change temperature is 59.00â¯Â°C. The thermal conductivity of the composites was tested, and the variation tendency was linearly fitted. The thermal storage and release tests were performed to evaluate thermal performance of the composites. And the efficiency of the heat storage and release of OC/EP composites were improved significantly after filling EG (mass fraction of 15%) into the interspace that is among the particles of EP.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 131, February 2019, Pages 911-922
Journal: Renewable Energy - Volume 131, February 2019, Pages 911-922
نویسندگان
Peizhao Lv, Mingyue Ding, Chenzhen Liu, Zhonghao Rao,