Experimental investigation on the regulation of methane addition for multi-stage combustion of lean ammonia/air mixtures using jet ignition

Li, Gang; Wang, Jieming; Wang, Hu; Tang, Qinglong; Liu, Haifeng; Yao, Mingfa

doi:10.1016/j.energy.2024.133905

Energy

2024

DOI: 10.1016/j.energy.2024.133905

|View full text |Cite

Experimental investigation on the regulation of methane addition for multi-stage combustion of lean ammonia/air mixtures using jet ignition

Gang Li,

Jieming Wang,

Hu Wang

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...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Numerical Study on the Combustion and Emissions Characteristics of Liquid Ammonia Spray Ignited by Dimethyl Ether Spray

Leng,

Dai,

Wang

et al. 2024

Fire

View full text Add to dashboard Cite

Ammonia has attracted considerable attention as a zero-carbon fuel for decarbonizing energy-intensive industries. However, its low reactivity and narrow flammability limit efficient ignition and efficient combustion. By using CONVERGR software, this study numerically investigates the ignition and combustion characteristics of liquid ammonia spray ignited by dimethyl ether spray in a constant-volume chamber at an ambient temperature of 900 K. Critical parameters, including injection angles (90°–150°), liquid ammonia injection pressures (60–90 MPa), and ambient pressures (2.8–5.8 MPa), were systematically analyzed to evaluate their effects on ignition conditions and emissions. Results indicate that increasing the injection angle improves mixing between liquid ammonia and dimethyl ether sprays, enhancing combustion efficiency and achieving a maximum efficiency of 92.47% at 120°. Excessively large angles cause incomplete combustion or misfire. Higher liquid ammonia injection pressures improve atomization and promote earlier interactions between the sprays but reduce combustion efficiency, decreasing by approximately 2% as injection pressure increases from 60 MPa to 90 MPa. Higher ambient pressures improve combustion stability but decrease ammonia combustion efficiency. Post-combustion NO emissions at 5.8 MPa are reduced by 60.48% compared to 3.8 MPa. The formation of NO is strongly correlated with the combustion efficiency of liquid ammonia. A higher combustion rate of liquid ammonia tends to result in elevated NO. Based on these findings, an injection angle of 120°, an NH₃ injection pressure of 75 MPa, and an ambient pressure of 3.8 MPa are recommended to optimize combustion efficiency.

show abstract

Numerical Study on the Combustion and Emissions Characteristics of Liquid Ammonia Spray Ignited by Dimethyl Ether Spray

Leng,

Dai,

Wang

et al. 2024

Fire

View full text Add to dashboard Cite

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.

Experimental investigation on the regulation of methane addition for multi-stage combustion of lean ammonia/air mixtures using jet ignition

Cited by 1 publication

References 39 publications

Numerical Study on the Combustion and Emissions Characteristics of Liquid Ammonia Spray Ignited by Dimethyl Ether Spray

Numerical Study on the Combustion and Emissions Characteristics of Liquid Ammonia Spray Ignited by Dimethyl Ether Spray

Contact Info

Product

Resources

About