کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7935381 | 1513054 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental and numerical investigation of a solar collector/storage system with composite phase change materials
ترجمه فارسی عنوان
بررسی تجربی و عددی یک سیستم جمع آوری / ذخیره سازی خورشیدی با مواد تغییر فاز کامپوزیت
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This paper proposes a novel solar collector/storage system using erythritol as phase change material (PCM). The expanded graphite (EG) in mass fraction of 3% was added into the PCM to form a composite PCM, so as to enhance the thermal conductivity of the PCM. An experimental investigation was carried out to study the performance of the solar collector/storage system in charging process. Then, based on the enthalpy-porosity and melting/solidification models, a numerical model was established and experimentally validated. Furthermore, the heat transfer characteristics in the solar collector/storage system was simulated. Finally, the heat discharging performance of the system was predicted under different inlet temperatures and inlet flow velocities. The results show that the solar collector/storage system with composite PCM has good thermal storage performance, and the daily average storage efficiency reached 39.98%. Meanwhile, when the daily irradiance is larger than 15.23â¯MJ/m2, the system could completely finish the latent heat charging process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 164, April 2018, Pages 65-76
Journal: Solar Energy - Volume 164, April 2018, Pages 65-76
نویسندگان
Bin Li, Xiaoqiang Zhai, Xiwen Cheng,