표제지
요약문
Abstract
목차
기호설명 11
제1장 서론 12
1.1. 연구 배경 12
1.2. 연구목적 16
제2장 실험적 연구 방법 17
2.1. 실험 장치 17
2.1.1. 수소-메탄 연소 특성 비교를 위한 예혼합 연소기 장치 19
2.1.2. 수소 전소용 NOₓ 저감을 위한 확산 연소기 장치 21
2.2. 실험 조건 24
2.2.1. 수소-메탄 연소 특성 비교를 위한 실험 조건 25
2.2.2. 수소 전소용 NOₓ 저감을 위한 실험 조건 27
제3장 결과 및 고찰 30
3.1. 수소-메탄 화염의 NOₓ 생성 특성 비교 30
3.2. 수소 전소용 연소기의 NOₓ 저감 방법 34
3.2.1. 난류 강도 증가에 따른 NOₓ 저감 34
3.2.2. 열교환기 적용에 따른 NOₓ 저감 45
제4장 결론 48
참고문헌 50
Table 1. Combustion properties of H₂ compared to CH₄ 15
Table 2. The experimental conditions for comparing methane and hydrogen flame in coaxial burner 26
Table 3. Experimental conditions for the effect of flow velocity, rim nozzle, flame direct contact heat exchanger in hydrogen... 29
Figure 1. Combustion experiment equipment for coaxial burner and diffusion flame burner 18
Figure 2. Schematic of coaxial burner experiment system 20
Figure 3. Schematic of experiment system for hydrogen diffusion burner 22
Figure 4. Schematic of heat exchanger experiment 23
Figure 5. Comparison of hydrogen and methane flames according to the equivalence ratio 32
Figure 6. Effect of premixed equivalence ratio in hydrogen and methane on NOₓ emissions in a coaxial burner 33
Figure 7. Comparison of diffusion flame shape for hydrogen and methane in the same flow velocity 35
Figure 8. Hydrogen diffusion flames according to the fuel flow velocity 36
Figure 9. Effect of fuel flow velocity on the NOₓ emissions in hydrogen diffusion flame burner 39
Figure 10. Comparison of NOₓ emissions according to the air flow velocity in hydrogen diffusion flame burner 40
Figure 11. Effect of fuel and air flow velocity on the NOₓ emissions in hydrogen diffusion flame burner 42
Figure 12. Comparison of NOₓ emissions depending on the rim nozzle and without one in hydrogen diffusion flame burner 44
Figure 13. Effect of flame direct contact heat exchanger distance on the NOₓ emissions in hydrogen diffusion flame burner 47