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Electronic cooling by using barium titanate (iv) nanofluid with loop heat pipe (lhp)

Electronic cooling by using barium titanate (iv) nanofluid with loop heat pipe (lhp) / Tan Aik Kwan
Pengurangan saiz dan kenaikan eksponen dalam bilangan komponen elektronik bersepadu akan meningkatkan kepadatan kuasa dan fluks haba litar. Bendalir nano barium titanate (IV) telah dicadangkan untuk menggantikan cecair penyejukan konvensional seperti air dan etilena glikol (EG). Bendalir nano barium titanate (IV) disediakan dalam kepekatan volum 0.1 vol.%, 0.3 vol.% dan 0.5 vol.% dengan Gam Arab (GA) sebagai surfaktan. Ciri-ciri termofizikal dikaji dengan bendalir nano dengan dikenalkan 20 W, 40 W dan 60W dalam sistem paip gelung haba. Penambahan bendalir nano barium titanate (IV) terbukti dapat meningkatkan pengaliran terma sehingga maksimum 31.28% berbanding dengan air suling. Walau bagaimanapun, dari segi nombor Nusselt (Nu), air suling menunjukkan keupayaan pemindahan haba lebih baik daripada bendalir nano dengan perbezaan maksimum sebanyak 46.5%. Haba masuk secara pengaliran lebih tinggi daripada haba keluar melalui perolakan telah menyebabkan suhu permukaan sentuhan cecair menjadi lebih tinggi berbanding dengan air suling dengan penggunaan bendalir nano. Oleh itu, kombinasi RAM blok air dengan bendalir nano barium titanate (IV) tidak sesuai untuk aplikasi penyejukan elektronik. _______________________________________________________________________________________________________ The reduction of size and the exponential increment in the number of integrated electronic components have eventually increased the power density and heat flux of the circuit. Barium titanate (IV) nanofluid has been proposed to replace the conventional cooling fluid such as water and ethylene glycol (EG). Barium titanate (IV) nanofluid is prepared at 0.1 vol.%, 0.3 vol.% and 0.5 vol.% with Arabic Gum (AG) as the surfactant. The thermophysical properties are studied with the nanofluid under heat output of 20 W, 40 W and 60W in a closed loop fluid system. The addition of barium titanate (IV) nanofluid is proven to improve the thermal conductivity by maximum of 31.28% compared to distilled water at 0.5 vol.%. However, in term of Nusselt number (Nu), distilled water shows superior heat transfer capability than nanofluids with maximum difference of 46.5% with nanofluids. Lesser heat is convected out than the heat is conducted into the RAM water block by nanofluid which causes fluid contact surface temperature to be greater than the results from distilled water. Hence, the combination of RAM water block and barium titanate (IV) nanofluid is not suitable for electronic cooling application.
Contributor(s):
Tan Aik Kwan - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875008186
Language:
English
Subject Keywords:
reduction; components; nanofluid
First presented to the public:
6/1/2019
Original Publication Date:
7/9/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Aerospace Engineering
Citation:
Extents:
Number of Pages - 106
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-07-09 17:24:25.295
Submitter:
Mohd Jasnizam Mohd Salleh

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