The purpose of this study is to analyze and evaluate the heat transfer characteristics and energy efficiency of oxyfuel technology on a 15 ton ladle furnace through analytical modeling.
From steady state analysis:
under the same inner wall temperature ( 1668.15 (K) ), oxyfuel combustion can reduce 50.89% fuel mass flow rate.
From transient analysis:
under the same heat capacity of ladle ( 11294.143 (MJ) ), oxyfuel combustion ( fuel mass flow rate 0.01~0.02 (kg/s) ) can save 4.05~73.03% heating time.
under the same heat capacity of ladle ( 11294.143 (MJ) ), oxyfuel combustion ( fuel mass flow rate 0.01~0.02 (kg/s) ) can save 36.76~64.45% cost.
From CFD simulation:
The biggest challenge of oxy-fuel combustion is to decrease in suction.
Narrow outlet and increase momentum of mass inlet could reduce in suction.
Po-Lun Tseng, Wei-Dong Hsieh ,Ming-Hsun Wu, Simulation on Heating Characteristics of Oxy-fuel Combustion in the Ladle Furnace, The 31st Nat. Conf. on Mech. Engineering of CSME, Taichung, Taiwan, 2014.
Po-Lun Tseng, Wei-Dong Hsieh ,Ming-Hsun Wu, Heat Transfer Analysis of Ladle Furnace and the Assessment of the Cost-effectiveness of Pure Oxygen Combustion, The 25th Nat. Conf. Combust. & Energy, Kaohsiung, Taiwan, 2015.