Analysis of a compact iron ore sintering process based on agglomerated biochar and gaseous fuels using a 3D multiphase multicomponent mathematical model

Castro, José Adilson de; Silva, Leonardo Martins da; Medeiros, Guilherme Cardoso; Oliveira, Elizabeth Mendes de; Nogami, Hiroshi

doi:10.1016/j.jmrt.2020.04.004

Cited by 16 publications

(9 citation statements)

References 38 publications

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“…Comparison of Figure 2 with results in the paper [23] (Fig. 4) leads to conclusion about similar temperature field with no more 20% difference.…”

Section: Resultssupporting

confidence: 62%

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Multithreaded Acceleration of 3D Mathematical Model for Ore Sintering

Krasnikov¹

2021

IJC

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One of the widely used methods to accelerate a numerical solver is implementation of multithreading. The problem of thread allocation on-demand at runtime is latency, caused by periodical instantiation of threads. The article is devoted to parallelization of solver for 3D mathematical model of ore sintering, based on software threads reusing them during computation. Computational domain is equally shared among available threads. Each thread writes only to own data partition. A looped barrier is proposed for guaranteed synchronization of all threads after iteration. The method allows scaling performance without recompilation of the solver by using similar CPU with more cores. Measurement of solver performance with 220 nodes using different thread count confirms scalability around 95% for double and single precision arithmetics. Presented pictures of perspective view with three slices of temperature field show influence of heat loss from pallets walls. A cross section of temperature field in layer after 16 minutes of sintering is calculated with appearance of two high-temperature regions inside. Comparison of temperature field with literature data gives good correspondence. The computer model takes into account important chemical reactions, such as, coke burning, carbonate dissolution, water vaporization, as well as mass-heat transfer inside the sinter layer and can be used in metallurgical plants to increase effectiveness of sintering.

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“…Comparison of Figure 2 with results in the paper [23] (Fig. 4) leads to conclusion about similar temperature field with no more 20% difference.…”

Section: Resultssupporting

confidence: 62%

“…Comparing calculated temperature field to the field on the figures in the paper [23], a good correspondence is stated. The presented mathematical model can be used to optimize ore sintering at the plants.…”

Section: Discussionmentioning

confidence: 58%

Multithreaded Acceleration of 3D Mathematical Model for Ore Sintering

Krasnikov¹

2021

IJC

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“…31) Meanwhile, either one-dimensional 32,33) or two-dimensional model 10) was solved to predict the temperature profiles against the time, and a residence time of approximately 10 mins at 1 473-1 673 K was expected to be reasonable for liquid phase generation in the packed bed. 34) Although lots of work has successfully established the relations between the temperature profile and the sintering time, few works focus on proposing a visualization method to quantitatively evaluate carbon combustion energy in the packed bed. Therefore, this work first predicts and validates the transient temperature versus the time in a carbon combustion packed bed through a two-dimensional simplified model.…”

Section: A Visualization Methods Of Quantifying Carbon Combustion Energy In the Sintering Packed Bedmentioning

confidence: 99%

A Visualization Method of Quantifying Carbon Combustion Energy in the Sintering Packed Bed

Sun

Yang

et al. 2021

ISIJ Int.

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“…Brazil is the leading global producer and consumer of biochar [81], where as much as 75% of its production goes to the steel industry [82] (Figure 2). The advantageous nature of biochar in metallurgical processes is primarily determined by its quality [83,84], which must adhere to the requirements of the steel industry (Table 2) [82,85]. Currently, there are two main production routes for iron and steel, namely the blast furnace-basic oxygen furnace (BF-BOF) and the electric arc furnace (EAF).…”

Section: Biochars In Iron and Steel Industriesmentioning

confidence: 99%

Actual Trends in the Usability of Biochar as a High-Value Product of Biomass Obtained through Pyrolysis

Sajdak

Muzyka

Gałko³

et al. 2022

Energies

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This review comprehensively examines biochar, an essential material in an era of climate change for reducing carbon dioxide (CO2) emissions into the atmosphere. It is inconspicuous, black, lightweight, and very porous, and is produced through the thermal conversion of biomass. Our literature review highlights biochar’s expansive application possibilities. Firstly, its potential to improve soil quality and sequester CO2 has been examined, as well as its utilization in iron and steel manufacturing to minimize the quantity of coke and ultimately reduce CO2 emissions. In industrial manufacturing, the complete elimination of coke can promote environmental neutrality, which is achieved using biochar from biomass for its extrusion. Furthermore, biochar is becoming increasingly significant in modern energy storage technologies and as an important additive in Pickering emulsions, which are also employed in energy storage systems. Additionally, the use of carbon black is a broad topic, and this review illustrates where it can be successfully utilized, especially in environmentally sensitive areas.

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Analysis of a compact iron ore sintering process based on agglomerated biochar and gaseous fuels using a 3D multiphase multicomponent mathematical model

Cited by 16 publications

References 38 publications

Multithreaded Acceleration of 3D Mathematical Model for Ore Sintering

Multithreaded Acceleration of 3D Mathematical Model for Ore Sintering

A Visualization Method of Quantifying Carbon Combustion Energy in the Sintering Packed Bed

Actual Trends in the Usability of Biochar as a High-Value Product of Biomass Obtained through Pyrolysis

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