Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/73727
Title: Optimization of post combustion in an electric arc furnace for advanced steelmaking
Authors: Zhonghua, W. 
Mazumdar, D.
Mujumdar, A.S. 
Keywords: Computational fluid dynamics
Electric arc furnace
Emission reduction
Energy efficiency
Mathematical model
Post combustion
Steelmaking
Issue Date: 2009
Source: Zhonghua, W.,Mazumdar, D.,Mujumdar, A.S. (2009). Optimization of post combustion in an electric arc furnace for advanced steelmaking. The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III 1 : 261-266. ScholarBank@NUS Repository.
Abstract: In the state-of-the-art electric arc furnace (EAF) flat-rolled steelmaking plant, about 1.5 kmol of CO is generated per ton of steel, which if combusted to CO2, represents 425 MJ of energy recovery. Efficient transfer of the heat energy from the post combustion (PC) to the molten steel bath can reduce production costs and improve productivity. A comprehensive CFD model was developed to simulate the process. It was applied to the PC process in an industrial scale EAF furnace. Different PC oxygen injection system designs and operational strategies were evaluated e. g energy transfer efficiency, emission reduction ratio, oxygen usage efficiency. It was observed that only a simple modification of the PC system can improve greatly the system performance and hence reduce the steelmaking cost due to reduced energy consumption and decreased melting time in the EAF furnace. The numerical results obtained here also improve our current understanding of the PC process. This CFD model can be used as a tool to optimize existing industrial EAF furnaces.
Source Title: The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III
URI: http://scholarbank.nus.edu.sg/handle/10635/73727
ISBN: 9781615674237
Appears in Collections:Staff Publications

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