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

  • 제29권7호
  • /
  • Pages.350-359
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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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분포판 및 염공변화에 따른 원통형 예혼합 버너의 연소 특성

Combustion Characteristics of Cylindrical Premixed Burner using Different Baffle Plate and Flame Holes

  • 이필형 (인천대학교 기계시스템공학부) ;
  • 황상순 (인천대학교 기계시스템공학부)
  • Lee, Pil Hyong (Division of Mechanical System Engineering, Incheon National University) ;
  • Hwang, Sang Soon (Division of Mechanical System Engineering, Incheon National University)
  • 투고 : 2016.10.04
  • 심사 : 2017.05.08
  • 발행 : 2017.07.10
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초록

Premixed burner is a very strong candidate in household condensing gas boiler burner system because it has low CO and NOx emission with high thermal efficiency. The objective of this study was to determine combustion characteristics of cylindrical premixed burner using different baffle plate and flame holes. Results showed that cylindrical premixed flame mode could be changed into lift-off flame, blue flame, red flame, and green flame with increasing equivalence ratio. In particular, blue flame was found to be very stable at heating load of 8,82~35,280 kcal/h. NOx emission was under 26 ppm between 0.775 to 0.813 of equivalence ratio. CO emission was under 58 ppm under the same equivalence ratio. Thermal efficiency, a very important index in condensing gas boiler, was found to be above 90.13% under the same equivalence region.

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참고문헌

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