Numerical Investigation of Influence of Air and Fuel Dilution for Open Furnace MILD Combustion Burner

M. M., Noor and Wandel, Andrew P. (2012) Numerical Investigation of Influence of Air and Fuel Dilution for Open Furnace MILD Combustion Burner. In: Southern Regional Engineering Conference (SREC 2012) , 1-2 September 2012 , Toowoomba, Australia. .

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Climate change and greenhouse gases (GHG) have become one of the priorities for today’s intergovernmental issues. Reducing pollution and recycling the GHG are new challenges for the combustion community. The new technology Moderate or Intense Low oxygen Dilution MILD) combustion is one of the best alternatives for high thermal efficiency and low pollution combustion. This paper discusses the modelling of MILD combustion in an open furnace using FLUENT. Exhaust gas recirculation (EGR) was utilised to increase the combustion thermal efficiency by the reuse of the heat in the flue gas. The combustion chamber is enclosed to capture the flue gas for EGR. The oxygen dilution and pre-heating of the oxidiser which are vital for operating in the MILD regime can be achieved by utilising EGR. The top of the chamber will be the opening for exhaust gas release. The ratios of EGR, fuel and air inlet velocity were numerically studied for their effect on achieving MILD combustion in an open furnace. Higher dilution ratios produce lower NOx emissions and more readily achieve the MILD condition.

Item Type: Conference or Workshop Item (Speech)
Additional Information: Muhamad Mat Noor (M. M. Noor)
Uncontrolled Keywords: Spray MILD combustion; Computational fluid dynamics; Exhaust gas recirculation; Turbulent; Open furnace
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TD Environmental technology. Sanitary engineering
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Siti Aishah Ghani
Date Deposited: 08 Nov 2012 05:58
Last Modified: 03 Mar 2015 07:59
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