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위재혁(Jae Hyug Wie),김영수(Young Soo Kim),양대봉(Dae bong Yang),김양호(Yang Ho Kim),정용기(Young Ki Jeong),류정완,임재범(Jae Beom Lim),장영준(Young June Chang),전충환(Chung Hwan Jeon) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
An experimental study was performed to investigate the effect of swirl condition and secondary air rate on the Ion voltage and CO emission characteristics. In this study, the combustion characteristics were investigated with the variation of swirler diameter, vane angle, suction air rate. The result of this study, the Ion voltage increase with increasing the diameter of the swirler. Additionally with increasing the suction air rate, the Ion voltage is the same. The CO concentration depends on suction air rate. In the other hand, it is almost unaffected by swirler’s diameter. The flame length and Ion voltage decease with decreasing O2 percentage of surrounding air.
브로일 버너의 화염안정성과 배기배출물에 관한 실험적 연구
정용기(Yong-Ki Jeong),류정완(Jung-Wan Ryu),위재혁(Jae-Hyug Wie),임재범(Jae-Beom Lim),김양호(Yang-Ho Kim),양대봉(Dae-Bong Yang),김영수(Young-Soo Kim),장영준(Young-June Chang),전충환(Chung-Hwan Jeon) 한국연소학회 2008 KOSCOSYMPOSIUM논문집 Vol.- No.-
An experimental study was performed to investigate the effects of heat capacity and air excess ratio on CO emission characteristics of the broil burner in the gas oven range. Observations of flow characteristics occurring inside the both burner (general broil burner and a sheet metal burner), were investigated by measuring air excess ratio and CO emission characteristics. Combustion was achieved at the firing rate of 10,000~24,000Btuh, inlet pressure of 200~300㎜H2O. The primary air flow rate was found to be strongly dependent on the operating conditions, such as fuel flow rate. However air excess ratio calculated is constant without relation to fuel flow rate. There was a tendency that flame distance decreases as the air excess ratio increases because of momentum effect. In view of CO concentrations, there is a difference according to the heat capacity and flame guide. The effect of flame guide is great than the heat capacity.
가스 쿡탑 버너에서 디자인 형상이 배기배출물에 미치는 영향
정용기(Yong Ki Jeong),김영수(Young Soo Kim),양대봉(Dae Bong Yang),김양호(Yang Ho Kim),류정완(Jung Wan Ryu),위재혁(Jae Hyug Wie),임재범(Jae Beom Lim),석준호(Jun Ho Seok),장영준(Young June Chang),전충환(Chung Hwan Jeon) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
An experimental study was performed to investigate the effects of configuration of burner and air excess ration on CO & NOx emission characteristics of the cooktop burners which are used extensively. In this study, the combustion characteristics were investigated with the variation of design factor of cooktop turners. The results showed that as the thermal input increases, flammable region go narrower. With the increase of loading height from the cap to grate, the CO emission decrease owing to the reduction of quenching by flame impingement on the load. Additionally, the CO emission increase with angle of main slot, however the NO emission is almost unaffected.