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Porous burners for lean-burn applications
Progress in Energy and Combustion Science, 2008Abstract We review research on lean methane combustion in porous burners, with an emphasis on practical aspects of burner design and operation and the application of the technology to real-world problems. In particular we focus on ‘ultra-lean’ combustion, where the methane concentration is actually at or below the lean flammability limit for a free ...
Andrew T Harris
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NO adsorption behaviors of the MnO catalysts in lean-burn atmospheres
Journal of Hazardous Materials, 2013NO(x) emission control of lean-burn engines is one of the great challenges in the world. Herein, the MnOx model catalysts with the different calcination temperatures were synthesized to investigate their NO adsorbability for lean-burn exhausts. The transformation from (β-)MnO₂ to (α-)Mn₂O₃ following the increased calcination temperatures was evidenced ...
Hui Xian, Da Chen, Yisheng Tan
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SAE Technical Paper Series, 2013
<div class="section abstract"><div class="htmlview paragraph">Natural gas internal combustion engines are currently worthy of attention due to the growing interest in energy generation equipments that are both efficient and environmentally friendly.</div><div class="htmlview paragraph">As an answer to this interest, natural gas ...
Marcio Perin, Thiago Achek
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<div class="section abstract"><div class="htmlview paragraph">Natural gas internal combustion engines are currently worthy of attention due to the growing interest in energy generation equipments that are both efficient and environmentally friendly.</div><div class="htmlview paragraph">As an answer to this interest, natural gas ...
Marcio Perin, Thiago Achek
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The Hybrid Rich-Burn/Lean-Burn Engine
Journal of Engineering for Gas Turbines and Power, 1997This paper describes a new low-emissions engine concept called the hybrid rich-burn/lean-burn (HRBLB) engine. In this concept a portion of the cylinders of a multicylinder engine are fueled with a very rich natural gas-air mixture. The remaining cylinders are operated with a lean mixture of natural gas and air and supplemented with the rich combustion ...
D. P. Meyers, J. T. Kubesh
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SAE Technical Paper Series, 1997
<div class="htmlview paragraph">Lean burn and EGR are two commonly used technologies for improving fuel consumption and controlling emissions. Each has advantages and disadvantages when applied to an engine and, qualitatively at least, these effects are well known. To meet future emissions and fuel consumption constraints, most production engines
Grant Lumsden +2 more
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<div class="htmlview paragraph">Lean burn and EGR are two commonly used technologies for improving fuel consumption and controlling emissions. Each has advantages and disadvantages when applied to an engine and, qualitatively at least, these effects are well known. To meet future emissions and fuel consumption constraints, most production engines
Grant Lumsden +2 more
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Development of Lean Burn Catalyst
SAE Technical Paper Series, 1995<div class="htmlview paragraph">A new type of three way catalyst for lean engine was developed in order to reduce hydrocarbon (HC), carbon-monoxide (CO) and nitrogen-oxides (NOx) in lean exhaust gas. This catalyst has a base support material of MFI zeolite loaded with active metals including platinum (Pt), iridium (Ir) and rhodium (Rh). It showed
Akihide Takami +4 more
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SAE Technical Paper Series, 1988
<div class="htmlview paragraph">Theoretical analysis of flame propagation through catalytically activated mixtures and fundamental experiments with a catalytic plug-flow reactor have shown that catalytic prereaction can increase flame velocity and can reduce minimum ignition energy requirements.
Steven W. Beyerlein, Stanislaw Wojcicki
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<div class="htmlview paragraph">Theoretical analysis of flame propagation through catalytically activated mixtures and fundamental experiments with a catalytic plug-flow reactor have shown that catalytic prereaction can increase flame velocity and can reduce minimum ignition energy requirements.
Steven W. Beyerlein, Stanislaw Wojcicki
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Ignitability Experiments in a Fast Burn, Lean Burn Engine
SAE Technical Paper Series, 1983<div class="htmlview paragraph">This paper demonstrates the first successful use of factorial statistical analysis in quantifying the effect of ignition system parameters on lean operation of a fast burn single cylinder engine. Ignition parameters investigated include plug type, plug number, ignition system, plug location, and ground electrode ...
R. W. Anderson, J. R. Asik
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Multivariable Control of Lean-Burn Engines
IFAC Proceedings Volumes, 1987Abstract Lean-bum engines need extremely accurate closed-loop controls both during static operation and during transients in order to prevent misfires and excessive emissions of hydro-carbons, to achieve stable combustion and low engine roughness, and to obtain good response to throttle commands.
C.E. Baumgartner +2 more
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