Heat dissipation for microprocessor using multiwalled carbon nanotubes based liquid.
Carbon nanotubes (CNTs) are one of the most valuable materials with high thermal conductivity (2000 W/m · K compared with thermal conductivity of Ag 419 W/m · K). This suggested an approach in applying the CNTs in thermal dissipation system for high power electronic devices, such as computer processor and high brightness light emitting diode (HB-LED). In this work, multiwalled carbon nanotubes (MWCNTs) based liquid was made by COOH functionalized MWCNTs dispersed in distilled water with concentration in the range between 0.2 and 1.2 gram/liter. MWCNT based liquid was used in liquid cooling system to enhance thermal dissipation for computer processor. By using distilled water in liquid cooling system, CPU's temperature decreases by about 10°C compared with using fan cooling system. By using MWCNT liquid with concentration of 1 gram/liter MWCNTs, the CPU's temperature decreases by 7°C compared with using distilled water in cooling system. Theoretically, we also showed that the presence of MWCNTs reduced thermal resistance and increased the thermal conductivity of liquid cooling system. The results have confirmed the advantages of the MWCNTs for thermal dissipation systems for the μ -processor and other high power electronic devices.
Institute of Materials Science, Vietnam Academy of Science and Technology, A2 Building, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 122102, Vietnam.
Bui
B
Hung Thang
Institute of Materials Science, Vietnam Academy of Science and Technology, A2 Building, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 122102, Vietnam.
Pham Van
PV
Trinh
Institute of Materials Science, Vietnam Academy of Science and Technology, A2 Building, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 122102, Vietnam.
Nguyen Van
NV
Chuc
Institute of Materials Science, Vietnam Academy of Science and Technology, A2 Building, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 122102, Vietnam ; Center for High Technology Development, Vietnam Academy of Science and Technology, 2B Building, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 122102, Vietnam.
Phan Hong
PH
Khoi
Institute of Materials Science, Vietnam Academy of Science and Technology, A2 Building, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 122102, Vietnam ; Center for High Technology Development, Vietnam Academy of Science and Technology, 2B Building, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 122102, Vietnam.
Phan Ngoc
PN
Minh
D006358:Hot Temperature; D008838:Microcomputers; D037742:Nanotubes, Carbon / Q000737:chemistry*
D037742:Nanotubes, Carbon