ملخص
Most solar collectors employ a transparent cover plate often made of glass. These materials reflect around 8% of the incident solar radiation, which leads to the reduction in the collector heat output. The use of an antireflection coating could therefore improve the performance of such a system by increasing the transmitted energy through the glass cover. Recently, a silica low-reflection coating via a dip-coating process has been developed. The refractive index of the thin film is well controlled. The exact value of the film refractive index that leads to a minimum of reflection on the surface of the glass cover can be achieved. A comparison has been made between an uncoated flat-plate solar collector glass cover and one with a porous sol-gel antireflection coating. Using the porous sol-gel coating with the index of refraction of n = 1.23 on the glass cover of the solar collector increases the useful energy by a factor of approximately 1.05.
اللغة الأصلية | English |
---|---|
الصفحات (من إلى) | 46-53 |
عدد الصفحات | 8 |
دورية | Heat Transfer Engineering |
مستوى الصوت | 27 |
رقم الإصدار | 1 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - يناير 2006 |
منشور خارجيًا | نعم |
ASJC Scopus subject areas
- ???subjectarea.asjc.3100.3104???
- ???subjectarea.asjc.2200.2210???
- ???subjectarea.asjc.1500.1507???