کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1550816 998108 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal and thermohydraulic performance of roughened solar air heater having protruded absorber plate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Thermal and thermohydraulic performance of roughened solar air heater having protruded absorber plate
چکیده انگلیسی

Thermal performance of solar air heater does not take into account energy loss due to friction for propelling air through the duct. Therefore, it is necessary to evaluate thermohydraulic performance in order to investigate simultaneous effect of thermal and hydraulic characteristics on performance of solar air heater. In the present paper thermal and thermohydraulic performance of smooth as well as roughened solar air heater has been investigated with the help of a mathematical model. Absorber plate of solar air heater has been roughened with the formation of protrusions. Optimum value of each roughness geometry parameter has been obtained on the basis of thermal and effective efficiency of roughened solar air heater. Design plots have also been prepared in order to facilitate the designer for designing such type of roughened solar air heater within the investigated range of system and operating parameters.


► Computed thermal and thermohydraulic performance of solar air heater.
► Found optimum values of roughness parameters on the basis of thermal efficiency.
► Found optimum values of roughness parameters on the basis of effective efficiency.
► Roughness enhanced thermal and effective efficiency considerably.
► Design plots are prepared in order to facilitate the designer.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 86, Issue 11, November 2012, Pages 3388–3396
نویسندگان
, ,