کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1508629 1511144 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A PVT Collector Concept with Variable Film Insulation and Low-emissivity Coating
ترجمه فارسی عنوان
مفهوم کلکتور PVT با عایق کاری فیلم متغیر و پوشش انتشارپذیری پایین
کلمات کلیدی
کلکتور هیبریدی فتوولتائیک حرارتی (PVT) ؛ پوشش انتخابی طیفی؛ عایق قابل تعویض؛ حفاظت گرمای بیش از حد ؛ مدیریت حرارتی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی

Hybrid photovoltaic-thermal (PVT) collectors co-generate solar electricity and heat in a single component with an optimum utilization of space. Spectrally selective but transparent low-emissivity (low-e) coatings are a proven method to reduce thermal losses. However, overheating and stagnation are critical issues for these collectors due to material degradation, thermal stress, and low electrical efficiency.This paper presents a PVT collector concept with variable film insulation as overheating protection. An inflatable glass-film cushion regulates thermal losses. Performance and stagnation tests were carried out with a prototype. During normal operation the collector achieves a high thermal efficiency. In periods of standstill, the deflated cushion has a high heat dissipation rate by deactivating the low-e coating. Stagnation temperatures are thus limited to 95 ̊C. To conclude, the PVT collector combines the advantages of glazed and unglazed PVT collectors which are a high thermal efficiency and low stagnation temperatures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 91, June 2016, Pages 72–77
نویسندگان
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