Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Flow Characteristic with Distance of Inlet Port and Rotating Length of Fluid in the Double Heat Exchanger

이중관 열교환기의 유체 유입위치와 회전길이에 따른 유동특성

  • Lee, Seung-Ha (Department of Mechanical Engineering, Korea University) ;
  • Cha, Dong-An (Energy System R&D Group, Korea Institute of Industrial Technology) ;
  • Kwon, Oh-Kyung (Energy System R&D Group, Korea Institute of Industrial Technology)
  • 이승하 (고려대학교 기계공학과) ;
  • 차동안 (한국생산기술연구원 에너지시스템연구그룹) ;
  • 권오경 (한국생산기술연구원 에너지시스템연구그룹)
  • Received : 2013.03.28
  • Accepted : 2013.05.20
  • Published : 2013.08.31
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Abstract

The length and position of the inlet port on the double tube heat exchanger is analyzed by CFX ver.11 for studying the characteristic of its flow distribution. When the boundary conditions of the inlet temperature and mass flow rate were each $20^{\circ}C$ and 10 ~ 50 kg/min, 3 models that are based on the distance between the inlet port and the center of the heat exchanger(0, 5.025, 10.05 mm) were analyzed to find the uniformity of the flow rate. Based on the flow rate, 4 lengths (23.723, 33.890, 44.057, 57.274 mm) were used to study the flow distribution according to Reynolds Number. The results show that, when the distance from the inlet to the position of the center of the heat exchanger is 10.05 mm and the length is 57.274 mm, the flow distribution is the most unified.

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References

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