대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제20권5호
  • /
  • Pages.1717-1724
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  • 1996
  • /
  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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전단율에 의존적인 비뉴턴 유체의 열전도율이 열전달 향상에 미치는 영향

The effect of the shear-rate dependent thermal conductivity of non-Newtonian fluids on the heat transfer enhancement

  • Sin, Se-Hyeon (Dept.of Mechanical Engineering, Kyungpook National University) ;
  • Lee, Seong-Hyeok (Dept.of Mechanical Engineering, Kyungpook National University) ;
  • Son, Chang-hyeon (Dept.of Mechanical Engineering, Kyungpook National University)
  • 발행 : 1996.05.01
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초록

The present study investigates the effect of the shear rate-dependent thermal conductivity of non-Newtonian fluids on the heat transfer enhancement in a pipe flow. An axially-constant heat flux boundary condition was adopted in the thermal fully developed region. The present analytical results of Nusselt numbers for various non-Newtonian fluids show heat transfer enhancement over those of a shear rate-independent thermal conductivity fluids. The present analytical results showed good agreement with the previous experiments which excluded the temperature-dependent viscosity effect on heat transfer. This study also proposes the use of a shear rate-dependent thermal conductivity fluids in the design of a heat exchanger for heat transfer enhancement as well as reduction of fouling.

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참고문헌

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