NDLI: Numerical Simulation of Full Oxy-Fired Oscillating Combustion

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Marin, Ovidiu Bugeat, Benjamin Till, Marc Louedin, Olivier
Copyright Year	2002
Abstract	Oscillating combustion represents a complex process, leading to significant improvements in high temperature industrial applications. Field demonstrations of the oscillating combustion technology have shown a significant reduction in NOx emissions, increased efficiency and improved operation. To date, no modeling work has been able to quantify these impacts of the technology. This effort presents the results of a numerical simulation study of oscillating combustion in a 450 kW pilot furnace. The combustion process involves a pipe-in-pipe natural gas-fired burner using exclusively oxygen as oxidant. The fuel is introduced into the combustion chamber periodically, given a certain amplitude and a time period, while the oxidant is introduced continuously. The transient numerical simulation uses the Air Liquide proprietary computational fluid dynamic software ATHENA™, analyzing the combustion process at incremental timesteps. The results reported here clearly explain the phenomena observed in the lab, as well as in field demonstrations. Detailed analysis of the mixing process between the fuel and oxidant, combustion of the reactants and heat transfer to the furnace walls is included. It is concluded that oscillating combustion represents a powerful solution to many industrial applications, and that modeling can play an important role in explaining the process, and in optimizing the system operation.
Sponsorship	Pressure Vessels and Piping Division
Starting Page	155
Ending Page	162
Page Count	8
File Format	PDF
ISBN	0791846598
DOI	10.1115/PVP2002-1547
Volume Number	Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1
Conference Proceedings	ASME 2002 Pressure Vessels and Piping Conference
Language	English
Publisher Date	2002-08-05
Publisher Place	Vancouver, BC, Canada
Access Restriction	Subscribed
Subject Keyword	Oxygen Computer simulation Computational fluid dynamics Computer software Combustion High temperature Fuels Modeling Emissions Transients (dynamics) Furnaces Nitrogen oxides Combustion chambers Pipes Combustion technologies Heat transfer
Content Type	Text
Resource Type	Article

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