[논문]Effectiveness between swirl intensity and air staging on NOx emissions and burnout characteristics in a pulverized coal fired furnace

SUNG, Yonmo; CHOI, Gyungmin

doi:10.1016/j.fuproc.2015.07.026

Effectiveness between swirl intensity and air staging on NOx emissions and burnout characteristics in a pulverized coal fired furnace

Fuel processing technology, v.139, 2015년, pp.15 - 24

SUNG, Yonmo (Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, United Kingdom) , CHOI, Gyungmin (School of Mechanical Engineering, Pusan National University, Busan 609-735, South Korea)

Abstract ▼ AI-Helper

Abstract For opposed wall-fired boilers, the dependency of NOx emission and burnout characteristics on swirl intensity is not straightforward during air-staged combustion. In this study, therefore, influences of swirl vane angle, primary zone stoichiometric ratio, and air staging level on NOx emission and burnout were evaluated experimentally in a laboratory-scale pulverized coal fired furnace. The NOx emission and burnout were a function of residence time in the primary combustion zone. Increasing of the residence time and decreasing of the primary zone stoichiometric ratio had a positive effect on NOx reduction and a negative effect on burnout. There was a tradeoff relationship between the NOx reduction and burnout performance. With controlling of the swirl vane angle, aerodynamic behaviors in the burner region had a strong impact on NOx emissions and burnout characteristics. From the effectiveness analysis of combustion modifications such as the primary zone stoichiometric ratio and swirl vane angle, the control of swirl vane angle was more effective than that in the control of the primary zone stoichiometric ratio. The optimum swirl vane angle should be adjusted with given combustion environments, especially in this research, it was 80°, 45°, and 60° at no staging, air staging level 1, and air staging levels 2–4, respectively. Highlights Effectiveness of NOx control methods was evaluated in a pulverized coal fired furnace. Control of swirl intensity was more effective than that of primary zone stoichiometry. NOx emission and burnout were correlated with air staging and swirl vane angle. Swirl vane angle was optimized with air staging levels during air-staged combustion.

주제어

참고문헌 (36)

Korean J. Chem. Eng. Sung 30 2 337 2013 10.1007/s11814-012-0160-7 Experimental study on interaction and excess heat release under oxy-fuel combustion of blended coals

상세보기
Energ. Convers. Manage. Shen 74 454 2013 10.1016/j.enconman.2013.06.048 NOx emission characteristics of superfine pulverized anthracite coal in air-staged combustion

상세보기
Fuel Spliethoff 75 560 1996 10.1016/0016-2361(95)00281-2 Basic effects on NOx emissions in air staging and reburning at a bench-scale test facility

상세보기
Energy Fuels Bai 28 1820 2014 10.1021/ef402305h Air-staged combustion characteristics of pulverized coal under high temperature and strong reducing atmosphere conditions

상세보기
Fuel Process. Technol. Spliethoff 54 189 1998 10.1016/S0378-3820(97)00069-6 Effect of co-combustion of biomass on emissions in pulverized fuel furnaces

상세보기
Fuel Daood 101 187 2012 10.1016/j.fuel.2011.02.007 Deep-staged, oxygen enriched combustion of coal

상세보기
Proc. Combust. Inst. Ribeirete 32 2667 2009 10.1016/j.proci.2008.06.061 Impact of the air staging on the performance of a pulverized coal fired furnace

상세보기
Fuel Munir 90 126 2011 10.1016/j.fuel.2010.07.052 The effect of air staged, co-combustion of pulverized coal and biomass blends on NOx emissions and combustion efficiency

상세보기
Exp. Therm. Fluid Sci. Moon 62 99 2015 10.1016/j.expthermflusci.2014.12.005 NOx emissions and burnout characteristics of bituminous coal, lignite, and their blends in a pulverized coal-fired furnace

상세보기
Energy Fuels Singh 25 108 2011 10.1021/ef101246q Cocombustion of pulverized coal with waste plastic and tire rubber powders

상세보기
Fuel Li 87 723 2008 10.1016/j.fuel.2007.05.043 NOx and SOx emissions of a high sulfur self-retention coal during air-staged combustion

상세보기
Fuel Process. Technol. Li 90 99 2009 10.1016/j.fuproc.2008.08.005 Optimization of air staging in a 1MW tangentially fired pulverized coal furnace

상세보기
Energy Chen 73 844 2014 10.1016/j.energy.2014.06.093 Experimental investigation into pulverized-coal combustion performance and NO formation using sub-stoichiometric ratios

상세보기
Combust. Sci. Technol. Godoy 59 165 1988 10.1080/00102208808947094 Combustion measurements in a pulverized coal-fired furnace

상세보기
Combust. Sci. Technol. Abbas 93 73 1993 10.1080/00102209308935283 The effect of the near burner aerodynamics on pollution, stability, and combustion in a PF-fired furnace

상세보기
Combust. Sci. Technol. Schnell 93 91 1993 10.1080/00102209308935284 Experimental and numerical investigation of NOx formation and its basic interdependencies on pulverized coal flame characteristics

상세보기
Proc. Combust. Inst. Draper 34 2779 2013 10.1016/j.proci.2012.08.008 Characterization of a primary-swirled, high oxygen participation coal flame: flame temperature, emissivity, NO, and burnout measurements

상세보기
Appl. Therm. Eng. Correa da Silva 64 430 2014 10.1016/j.applthermaleng.2013.12.065 Emission performance of type-1 pulverized coal flames operating under oxy-fired conditions

상세보기
Fuel Correa da Silva 115 507 2014 10.1016/j.fuel.2013.07.049 Flame pattern, temperature and stability limits of pulverized oxy-coal combustion

상세보기
Fuel Fan 89 1525 2010 10.1016/j.fuel.2009.09.014 Influence of outer secondary-air vane angle on combustion characteristics and NOx emissions of a down-fired pulverized-coal 300MWe utility boiler

상세보기
Fuel Jing 89 1973 2010 10.1016/j.fuel.2009.11.012 Study of the Influence of vane angle on flow, gas species, temperature, and char burnout in a 200MWe lignite-fired boiler

상세보기
Energy Ti 74 775 2014 10.1016/j.energy.2014.07.049 Influence of different swirl vane angles of over fire air on flow and combustion characteristics and NOx emissions in a 600MWe utility boiler

상세보기
Energy Fuels Jing 24 346 2010 10.1021/ef900836a Influence of different outer secondary air vane angles on flow and combustion characteristics and NOx emissions of a new swirl coal burner

상세보기
Fuel Gu 84 2093 2005 10.1016/j.fuel.2005.04.019 The effect of the mixing characters of primary and secondary air on NOx formation in a swirling pulverized coal flame

상세보기
Energy Fuels Xue 23 3558 2009 10.1021/ef900055s Experimental study on NOx emission and unburnt carbon of a radial biased burner for coal combustion

상세보기
Fuel Process. Technol. Xue 90 1142 2009 10.1016/j.fuproc.2009.05.011 Experimental investigation on NOx emission and carbon burnout from a radially biased pulverized coal whirl burner

상세보기
Exp. Therm. Fluid Sci. Sung 35 694 2011 10.1016/j.expthermflusci.2011.01.003 Influence of pulverized coal properties on heat release region in turbulent jet pulverized coal flames

상세보기
Appl. Therm. Eng. Moon 54 111 2013 10.1016/j.applthermaleng.2013.01.009 Thermochemical and combustion behaviors of coals of different ranks and their blends for pulverized-coal combustion

상세보기
Gupta 1984 Swirl Flows
Energy Fuels Daood 28 1541 2014 10.1021/ef402362t Combustion of Pakistani lignite (Thar coal) in a pilot-scale pulverized fuel down-fired combustion test facility

상세보기
Combust. Sci. Technol. Baum 3 231 1971 10.1080/00102207108952290 Predicting the combustion behaviour of coal particles

상세보기
Bioresour. Technol. Munir 101 7614 2010 10.1016/j.biortech.2010.04.055 Shea meal and cotton stalk as potential fuels for co-combustion with coal

상세보기
Heat Transfer A Zeng 59 43 2011 10.1080/10407782.2010.523326 Effect of the vane angle for outer secondary air on the flow and combustion characteristics and NOx emissions of the low-NOx axial-swirl coal burner, Numeri

상세보기
Energy Fuels Sun 26 6640 2012 10.1021/ef301043x Effects of secondary air on flow, combustion, and NOx emission from a novel pulverized coal burner for industrial boilers

상세보기
Combust. Sci. Technol. Fan 185 975 2013 10.1080/00102202.2013.769437 Influence of inner secondary air vane angle on combustion characteristics and NOx emissions of a down-fired pulverized-coal 300MWe utility boiler

상세보기
Fuel Ikeda 82 1851 2003 10.1016/S0016-2361(03)00170-4 Emission characteristics of NOx and unburned carbon in fly ash during combustion of blends of bituminous/sub-bituminous coals

상세보기

LOADING...

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Effectiveness between swirl intensity and air staging on NOx emissions and burnout characteristics in a pulverized coal fired furnace

Abstract ▼ AI-Helper

주제어

참고문헌 (36)

이 논문을 인용한 문헌

연구과제 타임라인

관련 콘텐츠

원문 URL 링크

이 논문과 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Effectiveness between swirl intensity and air staging on NOx emissions and burnout characteristics in a pulverized coal fired furnace

Abstract ▼ AI-Helper

주제어

참고문헌 (36)

이 논문을 인용한 문헌

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

관련 콘텐츠

원문 URL 링크

이 논문과 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트