NDLI: LES Simulation of an Ultra-Micro Combustion Chamber Based on a 177 Reactions Mechanism

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Minotti, Angelo Sciubba, Enrico
Copyright Year	2010
Abstract	Goal of this paper is to investigate the performance of microcombustors, a field currently under rapid development in particular for propulsion, e.g., UAVs and micro-electrical power generators. This study focuses on a cylindrical microcombustor fed by methane and air, with diameter and height 0.025m and 0.06m respectively. A 3D LES simulation with the WALE subgrid scale models, the EDC combustion-chemistry model and the reduced GRIMech1.2 mechanism has been performed. The calculated maximum temperature inside the chamber, the gas exhaust temperature and the combustion efficiency are compared and discussed. Reported results are at 0.05s, that is after 5 residence times. This ultra-microcombustor displays an excellent combustion efficiency which makes it a suitable for application in ultra-small energy producing devices. This work is part of a broader work that includes an experimental analysis, and it was conceived as a contribution towards a better understanding of the most convenient simulations guidelines for future microcombustor applications, and to a more accurate estimate of the performance parameters to apply to first-order design procedures.
Sponsorship	International
Starting Page	51
Ending Page	59
Page Count	9
File Format	PDF
ISBN	9780791849156
DOI	10.1115/ESDA2010-24170
e-ISBN	9780791838778
Volume Number	ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 1
Conference Proceedings	ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
Language	English
Publisher Date	2010-07-12
Publisher Place	Istanbul, Turkey
Access Restriction	Subscribed
Subject Keyword	Design Methane Temperature Chemistry Simulation Experimental analysis Propulsion Combustion Generators Unmanned aerial vehicles Combustion chambers Exhaust systems
Content Type	Text
Resource Type	Article

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