한국분무공학회지 (Journal of ILASS-Korea)

  • 제19권1호
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  • Pages.19-24
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  • 2014
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  • 1226-2277(pISSN)
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  • 2288-9051(eISSN)
한국분무공학회 (Institute for Liquid Atomization and Spray Systems-Korea)
권호 표지
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물/PG-기반 $Al_2O_3$ 나노유체를 적용한 수냉식 CPU 쿨러의 냉각성능

Cooling Performance of Liquid CPU Cooler using Water/PG-based $Al_2O_3$ Nanofluids

  • 박용준 (한국항공대학교 항공우주 및 기계공학부) ;
  • 김규한 (한국항공대학교 항공우주 및 기계공학부) ;
  • 이승현 (한국항공대학교 항공우주 및 기계공학부) ;
  • 장석필 (한국항공대학교 항공우주 및 기계공학부)
  • 투고 : 2014.02.03
  • 심사 : 2014.03.08
  • 발행 : 2014.03.31
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초록

In this study, the cooling performance of a liquid CPU cooler using the water/propylene glycol(PG)-based $Al_2O_3$ nanofluids is experimentally investigated. Water/PG-based $Al_2O_3$ nanofluids are manufactured by two-step method with ultrasonic energy for 10 hours. The volume fractions of the nanofluids are 0.25% and 0.35%. Thermal conductivity and viscosity of the nanofluids are measured to theoretically predict the thermal performance of the liquid CPU cooler using performance factor. Performance factor results indicate that the cooling performance of the liquid CPU cooler can be improved using the manufactured nanofluids. To evaluate the cooling performance of the liquid CPU cooler experimentally, temperature differences between ambient air and heater are measured for base fluid and nanofluids respectively. Based on the results, it is shown that performance of the liquid CPU cooler using $Al_2O_3$ nanofluids is improved maximum up to 8.6% at 0.25 Vol.%.

키워드

참고문헌

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