한국생산제조학회지 (Journal of the Korean Society of Manufacturing Technology Engineers)

  • 제20권5호
  • /
  • Pages.547-552
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  • 2011
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  • 2508-5093(pISSN)
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  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지

히트펌프를 이용한 고효율 냉풍 대형 건조기 유동 최적설계

Optimal Flow Design of High-Efficiency, Cold-Flow, and Large-size Heat Pump Dryer

  • 박상준 (공주대학교 대학원 기계공학과) ;
  • 이영림 (공주대학교 기계자동차공학부)
  • 투고 : 2011.06.01
  • 심사 : 2011.08.06
  • 발행 : 2011.10.15
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초록

Drying process, corresponding to a final process in the area of food engineering, requires a lot of heat energy. Thus, the energy efficiency is very important for dryers. Since the energy efficiency of heat pump dryers is much higher compared to that of electric dryers or other types of dryers, most of large-capacity dryers are adopting heat pump. In this study, shapes, positions and number of air-circulating fans, guide vanes, air inlet, outlet and top separator were varied for optimization of the flow of a large-capacity heat pump dryer. In addition, fans were modelled with performance curves and porous media were assumed for foods and heat exchangers. The simulation results were applied to the 12-ton dryer and the velocity distributions were experimentally examined. Finally, uniform drying in time was successfully accomplished through frozen pepper experiment.

키워드

참고문헌

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