کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6729558 | 504004 | 2016 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigation of heat transfer and dehumidifying performance of novel condensing panel
ترجمه فارسی عنوان
بررسی تجربی انتقال حرارت و رطوبت ساز پانل کنسانتره جدید
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کلمات کلیدی
چگالش، پانل تغذیه، خنک کننده تابشی ضریب انتقال حرارت،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
In this study, we propose a novel cooling and dehumidification strategy, in which a condensing panel can be hydronically connected in series with the radiant cooling system to overcome condensation risks. According to the concept, the sensible load is primarily treated by radiant cooling panels and the latent load and some amount of sensible load can be accomplished by the condensing panel. This paper evaluates the heat transfer and dehumidifying performance of the proposed condensing panel. For these purposes, a new experimental set-up was developed and condensation heat transfer of water vapor in the presence of air, on a vertical surface with different sub-cooling temperatures studied experimentally. However, the new test set-up allowed the measurement of the heat transfer coefficient from the measurement of the total sensible, radiation and condensation heat flux densities and the characteristic temperature differences. To investigate the heat transfer coefficient, tests were conducted using surface temperatures of 10.6, 10.9, 11.4, 12.2, 13 and 14 °C with the same initial conditions of mixture (mixture temperature 25 °C and relative humidity 75%). The average heat transfer coefficients were determined using the characteristic temperatures. The approximate average values 2.21, 4.45, 3.24 and 6.69 W mâ2 Kâ1 were found respectively for the radiation, convection, condensation and total sensible heat transfer coefficients. The present experimental data provide a new database for the natural convective steam condensation in the presence of non-condensable gas over the vertical plate for the full scale atmospheric condition in a closed room.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 129, 1 October 2016, Pages 120-137
Journal: Energy and Buildings - Volume 129, 1 October 2016, Pages 120-137
نویسندگان
Aliihsan Koca, Å. Ãzgür Atayılmaz,