کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
659014 | 1458099 | 2012 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heat transfer through a double-glazed unit with an internal louvered blind: Determination of the thermal transmittance using a biquadratic equation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The aim of this research is to quantify the influence of a louvered blind in a double-glazed unit during night-time conditions. First, an analytical study of free convection was conducted to obtain a set of correlations for the Nusselt numbers of the cavity. Second, a parametric study was performed to calculate the total heat transfer (convective and long-wave radiative) during night-time conditions. The analysis accounted for aspect ratio, blind thermal conductivity, surface emissivity and slat angle. Using these data, a biquadratic equation was developed to calculate the U-factor of a double-glazed unit with an internal louvered blind in terms of the U-factor of the unit without the blind, slat surface emissivity and slat angle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 55, Issue 4, 31 January 2012, Pages 1226-1235
Journal: International Journal of Heat and Mass Transfer - Volume 55, Issue 4, 31 January 2012, Pages 1226-1235
نویسندگان
M. Karmele Urbikain, José M. Sala,