다공성 표면복사버너에서 열특성 연구
A Study of Thermal Characteristics in Porous Surface Radiant Burner
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초록
This article describes an investigation of basic combustion characteristics of radiant burner withvarious firing rate and equivalence ratios in porous metal. The objective of this study is to investigatethe radiation efficiency, exhaust emission and preheating effect of unburned mixture in porous surfaceburner. As a main experimental condition, firing rates and equivalence ratios each were adjusted from204 to 408 and 0.4 to 1.3. Experiment results show that the flame of Porous surface burnercould be divided into three modes depending on the different flame shapes. First, it was appeared lowNOx and CO emission as well as low surface temperature in blue flame mode. Second, in radiationmode, surface temperature and radiation efficiency were measured highly. Finally in pool flame mode,burner surface temperature and the preheating effect of unburned mixture were decreased again.
Abstract
This article describes an investigation of basic combustion characteristics of radiant burner withvarious firing rate and equivalence ratios in porous metal. The objective of this study is to investigatethe radiation efficiency, exhaust emission and preheating effect of unburned mixture in porous surfaceburner. As a main experimental condition, firing rates and equivalence ratios each were adjusted from204 to 408 and 0.4 to 1.3. Experiment results show that the flame of Porous surface burnercould be divided into three modes depending on the different flame shapes. First, it was appeared lowNOx and CO emission as well as low surface temperature in blue flame mode. Second, in radiationmode, surface temperature and radiation efficiency were measured highly. Finally in pool flame mode,burner surface temperature and the preheating effect of unburned mixture were decreased again.
참고문헌 (7)
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- 강기중, "A Study on the Heat Transfer Characteristics of a High Velocity Impinging Inverse Diffusion Flames", 한국기계기술학회지, 12(4), pp.11~16 (2010), 한국기계기술학회