Development of a lean premixed low-swirl burner for low NOx practical applications

Development of a lean premixed low-swirl burner for low NOx practical applications

TitleDevelopment of a lean premixed low-swirl burner for low NOx practical applications
Publication TypeJournal Article
Year of Publication1998
AuthorsDerek T Yegian, Robert K Cheng
JournalCombusition Science and Technology
Volume139
Pagination207-227
Date Published08/1998
Abstract

Laboratory experiments have been performed to evaluate the performance of a premixed low-swirl burner (LSB) in configurations that simulate commercial heating appliances. Laser diagnostics were used to investigate changes in flame stabilization mechanism, flowfield, and flame stability when the LSB flame was confined within quartz cylinders of various diameters and end constrictions. The LSB adapted well to enclosures without generating (lame oscillations and the stabilization mechanism remained unchanged. The feasibility of using the LSB as a low NO x commercial burner has also been verified in a laboratory test station that simulates the operation of a water heater. It was determined that the LSB can generate NO x emissions < 10 ppm (at 3% O2) without significant effect on the thermal efficiency of the conventional system. Our study has demonstrated that the lean premixed LSB has commercial potential for use as a simple economical and versatile burner for many low emission gas appliances.

DOI10.1080/00102209808952088
Refereed DesignationRefereed