논문 상세보기
pp.728-734
It is known that lowering of peak temperature of flame reduces NOx emission in combustion process. Low oxygenconcentration of diluted combustion air reduces peak flame temperature, but makes flame unstable. So increasing oftemperature of reactants is needed to enhance flame stability. Mixing of high temperature combustion gas with combustionair makes low oxygen concentration and increases air temperature simultaneously. Low oxygen concentration ofcombustion air reduces peak temperature of flame and increased air temperature makes flame stable by enhancement ofcombustion reaction. Special apparatus for recirculation of high temperature combustion gas should be needed, becausegeneral blower cannot be used to return the gas of almost 1,000oC. Air jet type recirculation apparatus has been developedand installed in a commercial scale of 7.2ton/day incinerator and estimated. Oxygen concentration and temperature ofair mixed with inhaled high temperature combustion gas by the apparatus are 16.24~17.78%, 384~512oC, respectively,in a steady state of incineration.
II. 실험장치 및 실험방법
1. 재순환 노즐
2. 재순환 노즐의 흡인유량 측정
3. 소각로 설치상태에서의 흡인유량 측정
4. 재순환 가스의 산소희석효과 및 예열효과
III. 결과 및 고찰
1. 재순환 노즐의 흡인효과
2. 소각로에 설치된 재순환 노즐 흡인효과
3. 재순환에 의한 산소희석 및 공기예열효과
IV. 결 론
사 사
References
