Experimental Investigation on the Effects of the Geometry of the Pilot Burner on Main Flame

Cheol Woo Lee, In Su Kim and Jung Goo Hong
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Cheol Woo Lee: School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea
In Su Kim: Environmental & Energy Planning Team Hyundai Steel, Dangjin 31719, Korea
Jung Goo Hong: School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea

Energies, 2021, vol. 14, issue 4, 1-10

Abstract: Various kinds of pilot burners were experimentally investigated to examine the effects of their geometry and their location relative to the main burner of a real size combustor. In addition, a wide range of fuel equivalence ratios were investigated to analyze the feasibility of the novel pilot burner for the conventional burner application. From the results, it is shown that the novel pilot burner with multi air holes had a thin, straight, long and stable pilot flame, while the conventional pilot burner had a thick, lifted, short and unstable flame. It is also shown that the novel pilot burner with an upper air flow hole had a straight pilot flame which led to less thermal damage to the burner combustor. This study suggests that not only pilot burner flame shape but also the vertical location of the pilot burner from the main burner combustor has a significant effect on combustor durability.

Keywords: pilot burner; flame shape; burner geometry; flame temperature; buoyancy effect; thermal damage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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