Application of computational fluid dynamics for solving ventilation problems in metallurgical industrial processes

Zhang, Jianping; Johnson, Wayde; Plikas, Tom

doi:10.1080/14733315.2017.1299516

Cited by 10 publications

(3 citation statements)

References 4 publications

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“…The results from this study showed that the arrangement with two opposite inputs had the highest efficiency (Jiao et al, 2019). Also, the results from the study performed by Zhang et al demonstrated that CFD could be used to identify the best design for ventilation systems, find the probable and operational problems of the ventilation system before building and operating it, and achieve cost-effective solutions (Zhang et al, 2017b).…”

Section: Discussionmentioning

confidence: 99%

The simulation of the emission of iron fumes caused by shielded metal arc welding using a computational fluid dynamics method

2022

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Computational fluid dynamics (CFD) is an indispensable simulation tool for predicting the emission of pollutants in the work environment. Welding is one of the most common industrial processes that might expose the operators and surrounding workers to certain hazardous gaseous metal fumes. In the present study, we used computational fluid dynamics (CFD) methodology for simulating the emission of iron fumes from the shielded metal arc welding (SMAW) procedure. A galvanized steel chamber was fabricated to measure the pollutant concentration and identify the size of the fume created by the SMAW. Then, the emission of welding aerosol was simulated using a method of computational fluid-particle dynamics with the ANSYS 2020 R1 software. The highest amount of welding fumes concentration was related to iron fumes (i.e., 3045 μg/m3 with a diameter of 0.25 μm). The results of the current study indicated that the local exhaust and general ventilation system can prevent the spreading of welding fumes to the welder’s breathing zone and the surrounding environment. CFD was also found to be an efficient method for predicting the emission of the iron fumes created by SMAW as well as for selecting an appropriate ventilation system. However, further studies that take the modeling of welding-generated emission of additional metal particles and gases into account will need to be undertaken.

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Section: Discussionmentioning

confidence: 99%

The simulation of the emission of iron fumes caused by shielded metal arc welding using a computational fluid dynamics method

2022

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“…Since the development of computational fluid dynamics, numerical simulation has gradually become one way to study airflow organization in industrial plants. Zhang et al (2017) research shows that CFD can be effective for the verification of ventilation design schemes, and field measurements are more realistic and representative for the acquisition of model boundary conditions. Wang et al (2013) used CFD to study the key to high-temperature dust control in steel plants and gave an optimal design approach for engineering verification.…”

Section: Introductionmentioning

confidence: 99%

Numerical evaluation of the performances of the ventilation system in a blast furnace casthouse

Wang

Liu

et al. 2021

Environ Sci Pollut Res

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The blast furnace casthouse is a typical heavy-polluting factory building of a steel enterprise. During the tapping process and the taphole opening, the dust concentration in the factory building's workroom can reach tens of thousands mg/m³. Over time, the air pollutants in the workplace can have unwanted consequences on employees' health. This paper selected a typical blast furnace tapping workshop and measured on-site the characteristics of the wind speed distribution, temperature distribution, and soot concentration distribution during the taping period. A numerical simulation model was established to analyze the taphole smoke exhaust system's performance based on computational fluid dynamics. The findings are: the velocity, temperature, and smoke density distributions in the workplace were very uneven, and the thermal comfort of the workers' area was relatively poor. Also, the concentration of PM2.5 was mostly below 80μg/m³. Besides, due to the plant's on-site measurement, real data was obtained for numerical simulation verification, making the evaluation of the entire plant's ventilation performance more reliable. Hence, this article's finding provides a scientific basis for optimizing the air distribution in the blast furnace cast house's workplace.

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“…Here, the layers of the furnace walls having different materials with different thermal coefficient of expansion are considered. A report focused on the application of CFD modeling to solve challenging ventilation problems during metallurgical industrial process events, such as fume capture in furnaces, is presented in [8]. Some case studies in which various heat and fume sources with complicated geometry and interaction of natural buoyancy are discussed by the authors.…”

Section: Introductionmentioning

confidence: 99%

Computer Analysis of a Methane Fired Crucible Furnace

Santiago¹,

Barrón²,

Hilerio³

et al. 2018

OJAppS

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Two design factors and one operation parameter of a methane fired crucible furnace are numerically explored in this work. These are the number of burners, the location of the exhaust gas exit, and the air-fuel ratio, respectively. Three dimensional steady state Computational Fluid Dynamics simulations are carried out in order to analyze the influence of the above factors on the mean cavity temperature in absence of thermal load, the methane content and the oxygen content of the exit gas.

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Application of computational fluid dynamics for solving ventilation problems in metallurgical industrial processes

Cited by 10 publications

References 4 publications

The simulation of the emission of iron fumes caused by shielded metal arc welding using a computational fluid dynamics method

The simulation of the emission of iron fumes caused by shielded metal arc welding using a computational fluid dynamics method

Numerical evaluation of the performances of the ventilation system in a blast furnace casthouse

Computer Analysis of a Methane Fired Crucible Furnace

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