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

  • 제29권8호
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  • Pages.391-400
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  • 2017
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
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해수 파울링이 판형 열교환기 성능에 미치는 영향에 대한 고찰

Study on Effects of Seawater Fouling on a Plate-Frame Heat Exchanger

  • Heo, Jaehyeok (Solar Thermal Group, New and Renewable Energy, Korea Institute of Energy Research) ;
  • Lee, Dong-Won (Solar Thermal Group, New and Renewable Energy, Korea Institute of Energy Research) ;
  • Kim, Min-Hwi (Solar Thermal Group, New and Renewable Energy, Korea Institute of Energy Research) ;
  • Baik, Wonkeun (Department of Mechanical Engineering, Hanbat National University) ;
  • Yun, Rin (Department of Mechanical Engineering, Hanbat National University)
  • 투고 : 2017.01.09
  • 심사 : 2017.03.27
  • 발행 : 2017.08.10
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초록

Understanding of seawater fouling characteristics is critical in designing a heat exchanger adapted in an effluent utilization system for a power plant. We reviewed three types of fouling mechanisms of general, biological, and crystallizing for a plate-frame heat exchanger, to be used for heat exchanging with heated effluent from a power plant. Also, mathematical models for each type of seawater fouling were suggested. Actual thermal resistance calculated from seawater fouling models were compared and implemented in designing a plate-frame heat exchanger. The bio-fouling model revealed the largest thermal resistance and the highest number of plates for a plate-frame heat exchanger under the same heat load. Overall heat transfer coefficient and pressure drop of a plate-frame heat exchanger under fouling conditions was lower by 58 percent and higher by 2.85 times than those under clean conditions, respectively.

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참고문헌

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