설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제15권6호
  • /
  • Pages.502-509
  • /
  • 2003
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  • 1229-6422(pISSN)
  • /
  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

왕복운동을 하는 사각채널에서 거칠기 배열이 열전달에 미치는 효과

Effects of Roughness Arrangement on Heat Transfer in the Reciprocating Channel

  • 안수환 (경상대학교 기계항공공학부 해양산업연구소) ;
  • 손강필 (경상대학교 대학원) ;
  • 진용수 (경상대학교 실습선) ;
  • 김성태 (경상대학교 농업시스템공학부)
  • 발행 : 2003.06.01
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초록

This paper describes a detailed experimental investigation of heat transfer in a reciprocating rectangular channel fitted with rib structures with particular reference to the design of a piston for marine propulsive diesel engine. The parametric test matrix involves Reynolds number, reciprocating frequency, and reciprocating radius, respectively in the ranges, 1,000～6,000, 1.7～2.5 Hz, and 7～15 cm with four different rib arrangements. The rib arrangements have considerable influences on the heat transfer in the reciprocating channel due to the modified vortex flow structure. The experimental data confirm that the increases in the heat transfer can be seen in order of Case (b), Case (c), Case (d), and Case (a).

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참고문헌

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