The Effect of Cooling Wall Locations on Electronics Cooling Using Nanofluids
| المصدر: | المجلة الجامعة |
|---|---|
| الناشر: | جامعة الزاوية - مركز البحوث والدراسات العليا |
| المؤلف الرئيسي: | El-Agous, Said A. (Author) |
| مؤلفين آخرين: | Izweik, Husni T. (Co-Author) |
| المجلد/العدد: | مج17, ع3 |
| محكمة: | نعم |
| الدولة: |
ليبيا |
| التاريخ الميلادي: |
2015
|
| الشهر: | سبتمبر |
| الصفحات: | 5 - 40 |
| رقم MD: | 1264101 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | الإنجليزية |
| قواعد المعلومات: | EduSearch, EcoLink, IslamicInfo, AraBase, HumanIndex |
| مواضيع: | |
| كلمات المؤلف المفتاحية: |
Natural Convection | Enclosure | Heat Generation | Nanofluids | Heat Transfer
|
| رابط المحتوى: |
الناشر لهذه المادة لم يسمح بإتاحتها. |
| المستخلص: |
This work presents a numerical study of natural convection cooling of a heated block embedded in the bottom wall of an enclosure filled with nanofluids. A constant and uniform heat generation rate is produced inside the block. The influence of Rayleigh number, the local cooling walls of the enclosure, the type of nanofluid and solid volume fraction of nanoparticles on the cooling performance is studied. Four cases of local cooling walls are carried out to find the best location. The results indicate that qualitatively similar trends in isotherms and streamlines are observed for nanofluids and water. Case 2 has the highest cooling performance for different value of Rayleigh number and volume fraction while, case 3 has the lowest cooling performance for Cu nanoparticle. The enhancement in the maximum temperature for case 2 when the volume fraction of nanoparticles is increased from 0 to 0.2, at Ra = 103, is approximately 39.4%, whereas the enhancement is around 26.2% at Ra = 106 for Cu nanoparticle. In ϕ= 0.2 and case 2, the maximum temperature and average Nusselt number are constant for Ra ≤ 105 after this value the maximum temperature decreases and average Nusselt number increases for considering nanoparticles. |
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