Numerical modeling of the thermal performance of regenerative slab reheat furnaces

Journal Article · Fri Nov 07 04:00:00 EST 1997 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789708913909· OSTI ID:596795

Zhang, C; Ishii, T; Sugiyama, S ^[1]

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1. NKK Corp., Fukuyama, Hiroshima (Japan). Materials and Processing Research Center

Fuel consumption in reheat furnaces represents a significant percentage of the total processing cost. The competitiveness of the steel industry demands more efficient use of available fuel resources. Thus it has become more important to have enhanced furnace design tools. Here, numerical simulations of reactive turbulent flows and heat transfer in regenerative slab reheat furnaces have been carried out. A moment closure method with the assumed {beta} probability density function for the mixture fraction is used to model the turbulent nonpremixed combustion process in the furnaces. The combustion model is based on the assumption of instantaneous full chemical equilibrium. The numerical predictions are critically assessed by comparing with the experimental data. The comparison indicated that the numerical approach presented in this study is capable of predicting the thermal performance of regenerative furnaces with moving slabs.

• Sponsoring Organization: New Energy and Industrial Technology Development Organization, Tokyo (Japan)
• OSTI ID: 596795
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 6 Vol. 32; ISSN NHAAES; ISSN 1040-7782
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMBUSTION KINETICS
COMPARATIVE EVALUATIONS
FLUID FLOW
GAS FURNACES
HEAT TRANSFER
METAL INDUSTRY
NUMERICAL ANALYSIS
PERFORMANCE