An Experimental and 3d Numerical Study for Natural Convection with Radiation Inside Rectangular Enclosures
| المصدر: | المجلة الجامعة |
|---|---|
| الناشر: | جامعة الزاوية - مركز البحوث والدراسات العليا |
| المؤلف الرئيسي: | Shati, Abdulmaged .A (Author) |
| مؤلفين آخرين: | Woolly, Robert M. (Co-Author) , Beck, Stephen B. (Co-Author) |
| المجلد/العدد: | مج19, ع2 |
| محكمة: | نعم |
| الدولة: |
ليبيا |
| التاريخ الميلادي: |
2017
|
| الشهر: | أبريل |
| الصفحات: | 43 - 56 |
| رقم MD: | 1263474 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | الإنجليزية |
| قواعد المعلومات: | EduSearch, EcoLink, IslamicInfo, AraBase, HumanIndex |
| مواضيع: | |
| كلمات المؤلف المفتاحية: |
Natural Convection | Radiation Interaction | Rectangular Enclosures | Heat Transfer | Turbulence | Aspect ratio
|
| رابط المحتوى: |
الناشر لهذه المادة لم يسمح بإتاحتها. |
| المستخلص: |
The effects of turbulent natural convection with the interaction of surface radiation in a rectangular enclosure have previously been numerically and theoretically studied by the authors. This work extends these results by comparing the 3D numerical calculations with the experimental results. In this research an experimental study was performed for a hot wall temperatures ranging from 50C° to 75C° with an increment of 5C° with almost constant cold wall temperature at about 9°C and for three enclosure sizes of aspect ratios 2.0, 1.0 and 0.5. This allows the calculation of total heat transfer from the hot and cold walls using six thermocouples in each side. 3D numerical calculations were performed using the ANSYS 13 workbench software and for the same range of parameters of the experimental study. The comparison between the thermal calculations of the experimental results and the 3D numerical results were within an average deviation of less than 13% for the three aspect ratios. |
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