Computational Investigation of Coherent Jet Behavior Generated by H2 Shrouding Flow

Feng, Chao; Liu, Fuhai; Zhu, Rong; Dong, Kai; Wei, Guangsheng; Tao, Xia

doi:10.1007/s11663-023-02980-5

Metall Mater Trans B

2023

DOI: 10.1007/s11663-023-02980-5

|View full text |Cite

Computational Investigation of Coherent Jet Behavior Generated by H2 Shrouding Flow

Chao Feng,

Fuhai Liu,

Rong Zhu

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article4

Relationship

Self Cite1

Independent3

Authors

Journals

Cited by 4 publications

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Effects of Surrounding Hydrogen Injection Parameters on Coherent Jet Characteristics in Electric Arc Furnace Steelmaking Process

Yang,

Chen,

et al. 2024

steel research int.

Self Cite

View full text Add to dashboard Cite

The application of coherent oxygen injection improves the smelting efficiency and product quality by promoting the homogenization and impurities removal effects in electric arc furnace (EAF) steelmaking process. CH4 is widely applied as surrounding gas in traditional coherent jets, which inescapability generates some greenhouse gases (GHG), and against the ambitious carbon reduction goal. Herein, H2 instead of CH4 as surrounding gas in coherent jet is introduced. Based on fluid and combustion mechanics, a computational fluid dynamics model with hydrogen–oxygen combustion is developed and validated to study coherent jet characteristics considering H2 flow and ambient temperature. The results indicate that the shrouding hydrogen nozzle has a significant impact on the potential core length of the coherent jet. Shrouding oxygen can solve the problem of excessive consumption of main oxygen by shrouding hydrogen. When the equivalent ratio between shrouding hydrogen and shrouding oxygen maintains 1, increasing the flow rates is highly beneficial for improving oxygen jet performance at tested conditions. The potential core length of the jet increases little with the ambient temperature in the range of 1100–1700 K. This research is expected to extend hydrogen application in EAF steelmaking process for GHG reduction.

show abstract

Effects of Surrounding Hydrogen Injection Parameters on Coherent Jet Characteristics in Electric Arc Furnace Steelmaking Process

Yang,

Chen,

et al. 2024

steel research int.

Self Cite

View full text Add to dashboard Cite

show abstract

Effect of Exit Wear Length on the Behavior of Coherent Jet

Liu,

Tong,

Zhu

et al. 2024

ISIJ Int.

View full text Add to dashboard Cite

Flow Field of Supersonic Oxygen Jet Generated by Various Wear Lengths at the Laval Nozzle Exit

Liu,

Lu,

Zeng

et al. 2024

Coatings

View full text Add to dashboard Cite

As a main apparatus, the oxygen lance is used to deliver the oxygen element and transfer kinetic energy into the molten bath in the steelmaking process. However, the Laval nozzle exit would be gradually worn out during the service life, which suppresses the performance of the oxygen lance. This paper investigated three different wear length (Lw) conditions at the exit of the Laval nozzle through numerical simulations and high-temperature experiments with various oxygen flow rates. The result showed that the entrainment of the ambient gas was the key factor of the wear phenomenon for the Laval nozzle exit. The maximum total temperature of the gas phase at the Laval nozzle exit formed by the Lw of 0 mm, 2 mm, and 4 mm were 300 K, 959 K, and 1700 K, respectively. Thus, by increasing the Lw value, the total temperature of the gas phase was rapidly improved at the exit of the Laval nozzle, which further accelerated the wear phenomenon at the exit of the Laval nozzle. Besides, axial velocities at the end of the potential core formed by the Lw of 0 mm, 2 mm, and 4 mm were 483.7 m/s, 480.0 m/s, and 478.7 m/s, respectively. As a result, the wear phenomenon reduced the impaction ability of the oxygen jet, which suppressed the impaction depth and radius, resulting in a smaller droplet generation rate.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Computational Investigation of Coherent Jet Behavior Generated by H2 Shrouding Flow

Cited by 4 publications

References 23 publications

Effects of Surrounding Hydrogen Injection Parameters on Coherent Jet Characteristics in Electric Arc Furnace Steelmaking Process

Effects of Surrounding Hydrogen Injection Parameters on Coherent Jet Characteristics in Electric Arc Furnace Steelmaking Process

Effect of Exit Wear Length on the Behavior of Coherent Jet

Flow Field of Supersonic Oxygen Jet Generated by Various Wear Lengths at the Laval Nozzle Exit

Contact Info

Product

Resources

About