عنوان المقالة:دراسة عددية وتجريبية لمدخنة شمسية لاختبار دفع الهواء في العراق Experimental and numerical studies of solar chimney for natural ventilation in Iraq
تشمل الدراسة تحقيق دراسة ظروف مختلفة لمدخنة شمسية على كمية دفع الهواء تحت ظروف العراق الجوية. دراسة تجريبة وتحليلة عددية تمت في هذا البحث حيث تم الاخذ بنظر الاعتبار تغيير شكل مداخل الهواء للمدخنة ودراسة تاثيرها على خواص الهواء الميكانيكية
الملخص الانجليزي
Heat transfer process and fluid flow in a solar chimney used for natural ventilation are investigated
numerically and experimentally her in. Solar chimney was designed, manufactured and tested by selecting
different positions of air entrance namely: bottom entrance, side entrance, and both side and bottom
entrances. The effect of integrating the chimney with paraffin (phase change material) on its thermal
behavior has been also investigated. CFD analysis based on finite volume method is used to predict the
thermal performance, and fluid flow in two-dimensional solar chimney under unsteady state condition,
to identify the effect of different parameters such as solar radiation, and inclination angle. Experimental
results show that a solar chimney with side entrance gives better thermal performance; also integrating
solar chimney with PCM extended the ventilation period after the sunset. A comparison between the
numerical and the experimental results shows fair agreement.
سيف واثق محمد علي علي الطريحي | Saif Watheq Mohammed Ali Alturaihi | 2431