동력기계공학회지 (Journal of Power System Engineering)

  • 제21권4호
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  • Pages.62-69
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  • 2017
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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냉풍 건조 시스템의 배플 배열각도 및 공기공급관 위치 변화에 따른 성능 향상에 관한 연구

Study on the Performance Improvement according to Arrangement Angle of Baffle and Location of Air Duct in the Cold Air Dryer

  • 윤충국 (경상대학교 대학원) ;
  • 유기태 (경상대학교 대학원) ;
  • 박철 (경상대학교 대학원) ;
  • 송희근 (경상대학교 대학원) ;
  • 배강열 ((주)대명지이엔티) ;
  • 정한식 (경상대학교 에너지기계공학과, 해양산업연구소) ;
  • 정효민 (경상대학교 에너지기계공학과, 해양산업연구소)
  • Yun, Chung-Kug (Graduate School, Gyeongsang National University) ;
  • Yu, Ki-Tae (Graduate School, Gyeongsang National University) ;
  • Park, Chul (Graduate School, Gyeongsang National University) ;
  • Song, Hee-Geun (Graduate School, Gyeongsang National University) ;
  • Bae, Kang-Youl (Dae Myung GENT Co., Ltd.) ;
  • Chung, Han-Shik (Dept. Energy and Mech. Eng., Institute of Marine Industry, Gyeongsang National University) ;
  • Jeong, Hyo-Min (Dept. Energy and Mech. Eng., Institute of Marine Industry, Gyeongsang National University)
  • 투고 : 2017.06.07
  • 심사 : 2017.08.03
  • 발행 : 2017.08.31
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초록

Because the moist foods like anchovy were appeared lower quality by hot air that occurred the lipid oxidation, the drying system by using the cold air has been used widely. This study has been carried out on the performance improvement according to arrangement angle of baffle and location of air duct in the cold air dryer. The main parameters in this study are the arrangement angles which are without, $0^{\circ}$, $10^{\circ}$, $20^{\circ}$, $30^{\circ}$ and $40^{\circ}$, and the locations of air duct are without, front, center and back. For this study we have conducted the numerical analysis method using fluent in order to obtain the optimal condition of the drying performance. As the arrangement angle of baffle is increased, the relative humidity is proportionally decreased, the value at $40^{\circ}$ is 42.2% that indicate the reduction of about 4% than without it. After the air duct was installed, the decreased relative humidity is showed within 1%, therefore, the effect of air duct for improving the dry capacity is more large than the arrangement angle of baffle. Finally, we have obtained the optimal conditions that the arrangement angle is $40^{\circ}$ with the air duct for a cold air dryer.

키워드

참고문헌

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