Numerical Study on Combustion Performance Comparison of Premixed Methane-Air in Micro-Combustors with and without Heat Recirculating Channel

Abstract:

Recently£¬research interests of micro-power generation devices which are based on micro-combustion process have been stimulated by the persistent breakthrough of MEMS techniques. A new type micro-heat recirculating combustor was presented in this paper, and the computation model for premixed methane-air was established which adopting a skeletal reaction mechanism. Combustion characteristics both in heat recirculating combustor and single-channel combustor are analyzed which containing the flame shape, location and temperature at the same simulation conditions. It is found that not only the flame location can be better fixed by heat recirculation measure, but although the flame temperature can be raised for some degrees when compared to the single channel combustor. These results provide some useful information for the design of micro-scale combustors.

• Periodical: Applied Mechanics and Materials (Volume 394)
• Pages: 179-184
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.394.179
• Online since: September 2013
• Authors: Ai Kun Tang, Jian Feng Pan, Xia Shao, Yang Xian Liu
• Keywords: Heat Recirculating, Methane-Air, Micro-Combustion Performance, Numerical Simulation

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