Two-dimensional steady-state simulations to understand the flame stability of a cylindrical backward-facing three-stepped microcombustor with a recirculation cup are performed in the current study. This model is initially validated by using data from preliminary experiments and also ensured the grid independence. The aim of the present study is to understand the effect of heat recirculation on flame stabilization in a stepped combustor. Various heat recirculation cup lengths, ranging from 10 to 50 mm, are considered for the present computation. The results show that an increase in cup length significantly improves the flame stability through mixture preheating. This study indeed helps in developing an optimized combustor that can be used as a heating source for power applications.
Numerical Investigation on the Effect of Wall Preheating on Flame Stability of Stepped Microcombustor
Lect.Notes Mechanical Engineering
National Conference on IC Engines and Combustion ; 2019 ; Kurukshetra, India November 01, 2019 - November 04, 2019
2020-08-19
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Effects of combustor geometry on hydrogen–air premixed flame combustion in an annular microcombustor
SAGE Publications | 2011
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