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- Title
Numerical analysis of confined and unconfined hydrogen turbulent flames.
- Authors
İlbaş, Mustafa; Özkan, Mustafa
- Abstract
SUMMARY In this study, CFD modelling of confined and unconfined turbulent jet flames were carried out. Investigations were performed for different air : fuel ratios including stoichiometric conditions. Confined and unconfined combustions of hydrogen were investigated for different power inputs. As the combustion chamber is cylindrical and axisymmetrical, CFD modelling was made two dimensional and axisymmetrical. As a result of the modelling, temperature distributions, velocity distributions and gas concentrations including NO x emissions were obtained. It is shown that maximum temperature and maximum NO x emissions occur at the confined condition of hydrogen combustion. It is also shown that the value of NO x emissions in low-temperature zones are less than the value of NO x emissions in high-temperature zones in all combustion conditions. Copyright © 2011 John Wiley & Sons, Ltd.
- Subjects
HYDROGEN; JETS (Fluid dynamics); NUMERICAL analysis; COMBUSTION chambers; COMPUTATIONAL fluid dynamics; VELOCITY distribution (Statistical mechanics); LOW temperatures
- Publication
International Journal of Energy Research, 2012, Vol 36, Issue 15, p1326
- ISSN
0363-907X
- Publication type
Article
- DOI
10.1002/er.1890