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Optimization Design of Commercial Large Gas Oven Systems

상업용 대형 가스오븐 시스템의 최적 설계

  • Kim, Do-Hyun (Regional Innovation Center for Automobile Inha University) ;
  • Yu, Byeonghun (Regional Innovation Center for Automobile Inha University) ;
  • Kum, Sungmin (School of Mechanical and Automotive Engineering, Halla University) ;
  • Lee, Chang-Eon (Department of Mechanical Engineering, Inha University)
  • 김도현 (인하대학교 자동차동력계부품 지역혁신센터) ;
  • 유병훈 (인하대학교 자동차동력계부품 지역혁신센터) ;
  • 금성민 (한라대학교 기계자동차공학부) ;
  • 이창언 (인하대학교 기계공학과)
  • Received : 2016.04.14
  • Accepted : 2016.06.16
  • Published : 2016.06.30

Abstract

This research was conducted for the optimal design of large commercial gas oven system. Equivalent ratio was determined through a numerical analysis and experiments on the combustion condition of the combustor. After reviewing the supply capacity of burner(20,000 kcal) and control method of convection fan, two types of heat exchangers designed. In order to maintain a uniform temperature inside the oven is required convection fan braking system. The center temperature in the oven rises more rapidly when the convectional fan is rotated in the counterclockwise direction than the counter-clockwise direction. And The efficiency of the system by installing a large heat transfer area was higher.

본 연구는 국내 상업용 대형 가스오븐 시스템 개발을 목표로 연소기의 연소조건에 대한 수치해석 및 실험을 통해 적정 당량비를 결정한 후 공급열량(20,000 kcal)에 적합한 열교환기를 설계하고 대류 팬 제어방법을 검토하여 상업용 대형 가스오븐 시스템 설계 및 최적운전조건을 도출하는 것이다. 실험결과 당량비는 0.82가 가장 적절하였고 오븐 내부 중앙지점의 온도가 $200^{\circ}C$까지 도달하는데 걸리는 시간은 대류 팬의 회전방향이 반시계방향일 때 시계방향 보다 단축되었다. 또한 오븐 내부의 온도를 균일하게 유지하기 위해서는 대류 팬 제동장치가 필요하였다. 오븐 내부의 승온구간과 온도유지구간 동안 배출되는 배기가스의 열량을 통해 시스템 효율을 비교한 결과 전열면적이 큰 열교환기를 설치한 시스템의 효율이 높게 나타났다.

Keywords

References

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