EMISSION CHARACTERISTICS OF LIQUEFIED PETROLEUM GAS COMBUSTION IN A PREMIXED SWIRL BURNER
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Date
2010
Authors
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Journal ISSN
Volume Title
Publisher
Ife Journal of Technology
Abstract
Liquefied petroleum gas (LPG) is widely used as a fuel in
domestic and industrial heating appliances throughout the world
because its combustion products are relatively clean. However, due
to its direct association with people, its combustion pollutants are of
great concern. To this end, a study was carried out to investigate the
effects of swirl intensity and equivalence ratio on emission produced
during combustion of liquefied petroleum gas under fuel-lean
conditions in a premixed swirl burner. Experiments were carried out
using liquefied petroleum gas whose composition is 75% butane,
25% propane and air as charge. Tests were done for vane angles
between 35 and 60o in steps of 5o. Employing EGA4 gas Analyzer in
measuring NOx and COx emission level, it is shown that emission
levels were strongly influenced by swirl intensity and equivalence
ratio that strongly decrease pollutant emissions. Between
equivalence ratio of 0.65 and 0.90, NOx emission of less than 5ppm
and CO emission of less than 60ppm were achieved. Result also
showed that at temperature ranges between 927oC and 1012oC, NOx
and CO emission generated from combustion of LPG were low.
Description
Staff Publication
Keywords
Swirl number;, Equivalence ratio;, Emissions;, Swirl burner;, Liquefied petroleum gas