한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제24권2호
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  • Pages.205-213
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  • 2016
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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대칭 사다리꼴 핀과 비대칭 사다리꼴 핀의 성능 비교

Comparison of Performance between Symmetric Trapezoidal Fins and Asymmetric Trapezoidal Fins

  • 강형석 (강원대학교 기계의용공학과)
  • Kang, Hyungsuk (Department of Mechanical and Biomedical Engineering, Kangwon National University)
  • 투고 : 2015.08.27
  • 심사 : 2015.12.24
  • 발행 : 2016.03.01
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초록

Heat loss and fin efficiency of symmetric and asymmetric trapezoidal fins with variable slope of fin's top surface are obtained by using a two-dimensional analytic method. Shapes of symmetric and asymmetric fins are changed from rectangular through trapezoidal to triangular by adjusting the fin shape factor. The ratio of symmetric trapezoidal fin length to asymmetric trapezoidal fin length is presented as a function of fin base height and convection characteristic number. The ratio of symmetric trapezoidal fin efficiency to asymmetric trapezoidal fin efficiency is presented as a function of the fin base height and fin shape factor. One of results shows that asymmetric trapezoidal fin length is shorter than symmetric trapezoidal fin length (i.e., asymmetric trapezoidal fin volume is smaller than symmetric trapezoidal fin volume) for the same heat loss when the fin base height and fin shape factor are the same.

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참고문헌

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