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

  • 제34권11호
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  • Pages.965-973
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  • 2010
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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입구영향 및 주름높이의 변화를 고려한 판형열교환기의 유동 및 열전달 특성

Investigation of Flow and Heat Transfer Characteristics of Plate Heat Exchanger Taking into Account Entrance Effects and Variation in Corrugation Height

  • 모정하 (원광대학교 기계자동차공학부)
  • Moh, Jeong-Hah (Division of Mechanical & Automotive Engineering, Wonkwang Univ.)
  • 투고 : 2009.11.17
  • 심사 : 2010.09.13
  • 발행 : 2010.11.01
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초록

본 연구에서는 입구영향과 주름높이가 고려된 판형열교환기의 유동 및 열전달특성을 수치적으로 해석하였다. 여러 개의 단위셀을 연결한 다중셀에 입구부와 출구부가 부착된 모델을 기본으로 입구부의 길이변화($L_{cell}{\sim}5L_{cell}$)에 따른 모델과 P/H비 변화($2{\leq}P/H{\leq}4$)에 따른 모델에 대하여 수치해석을 수행하였다. 수치조건은 쉐브론각 $15^{\circ}$, 주름피치 24mm이며, $1,000{\leq}Re{\leq}10,000$이다. 마찰인자는f=$CRe^m$의 형태로, Colburn j 계수는 j=$CRe^m$의 형태로 상관관계식을 제시하였다. 이러한 상관관계식은 향후 판형열교환기 설계시에 기초자료로 활용될 수 있을 것으로 판단된다.

Numerical analysis has been carried out to investigate the heat transfer characteristics of a plate heat exchanger. The multi-cell models with inlet part and outlet part are used for performing numerical simulation. The plate heat exchanger is characterized by chevron angle of $15^{\circ}$, corrugation pitch of 24mm and corrugation height 6~12mm. The length of the inlet-part considered in the analysis ranges from 24.8 to 124mm and Reynolds numbers range from 1,000 to 10,000. The correlations such as friction factor and Colburn factor are compared with previous experimental data. The results can be utilized for designing the plate heat exchanger.

키워드

참고문헌

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피인용 문헌

  1. Numerical Study for the Optimal Design of Plate Heat Exchanger Using at Seawater Air Conditioning vol.18, pp.4, 2014, https://doi.org/10.9726/kspse.2014.18.4.029
  2. A numerical study on heat transfer and pressure drop of plate heat exchanger using at seawater air conditioning with the variation of channel spaces vol.38, pp.6, 2014, https://doi.org/10.5916/jkosme.2014.38.6.704
  3. Numerical Simulation of the Fully Developed Flow and Heat Transfer of a Plate Heat Exchanger Taking into Account Variation in the Corrugation Height vol.36, pp.1, 2012, https://doi.org/10.3795/KSME-B.2012.36.1.001