کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6457031 1420662 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of multifunctional energy composite: Solar absorber and latent heat storage material of high thermal conductivity
ترجمه فارسی عنوان
سنتز و مشخصه کامپوزیت انرژی چند منظوره: جذب خورشیدی و مواد ذخیره سازی پنهان از هدایت حرارتی بالا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


- PCM and graphite composites have been elaborated for different solar applications.
- Storage capacity, conductivities and absorbance measurements have been performed.
- According to the solar spectra, composites present high absorbance (>0.9).
- Directional reflectance measurements highlight composites specular behavior.

Phase change materials (PCM) used in thermal energy storage systems present high storage capacity and require low temperature variation to allow effective heat charge or discharge density. However, these materials involve too low thermal conductivities (<1 W m−1 K−1) which can limit the heat transfer power between the heat transfer fluid and the phase change zone. In the first part of this study, high power level composites made of PCM (organic and also inorganic) and graphite have been elaborated in the thermal range from 50 to 350 °C in order to increase the effective thermal conductivity. In a second part, the assessment of their use as solar absorbers has been realized. Results show that these composites present high absorptance with respect to the whole solar radiation spectra. This allows new potentiality of integration of such materials in solar thermal processes offering a direct management of heat variation at the very first step of the process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 161, March 2017, Pages 270-277
نویسندگان
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