An experimental study of a cylindrical multi-hole premixed burner for the development of a condensing gas boiler

Seungro Lee, Sung-Min Kum and Chang-Eon Lee

Energy, 2011, vol. 36, issue 7, 4150-4157

Abstract: This study experimentally examined a cylindrical multi-hole premixed burner for its potential use for a condensing gas boiler, which produces less NOx emissions and performs better. In this study, the hole diameters and the arrangement of a multi-hole burner were investigated using a flat burner model. The combustion characteristics for the flame stability as well as the NOx and CO emissions were examined using a cylindrical burner. For an optimal operating condition, the equivalence ratio for the cylindrical burner was between 0.70 and 0.75. For this condition, the turn-down ratio was 3:1 or higher, which was suitable for appropriate control of the boiler operation. The NOx and CO emissions were less than 40 ppm and less than 30 ppm, respectively, for a 0% O2 basis. The LPG and LNG were able to be used in this type of burner because there was no phenomenal difference in the stable combustion region between them.

Keywords: Condensing boiler; Flame stability; Premixed burner; NOx and CO emissions (search for similar items in EconPapers)
Date: 2011
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:36:y:2011:i:7:p:4150-4157

DOI: 10.1016/j.energy.2011.04.029

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