Ignition Characteristics of Hydrogen Jets in an Argon-Oxygen Atmosphere

2012-01-1312

04/16/2012

Event
SAE 2012 World Congress & Exhibition
Authors Abstract
Content
The ignition delay and combustion characteristics of hydrogen jets in an argon-oxygen atmosphere were investigated to provide fundamental data for operating an argon-circulated hydrogen internal combustion engine. Experiments were conducted in a constant-volume combustion vessel to study the effects of ambient temperature, ambient pressure, oxygen concentration and injection pressure on a pre-burning system. The hydrogen-jet penetration and flame were also investigated based on high-speed shadowgraph images. The experimental results indicated that the ignition delay (τ) increases as the ambient temperature (Ti) decreases, similar to the results obtained in an air atmosphere. The heat-release rate results also exhibited similar trends. In addition, other fundamental characteristics were investigated by modifying the oxygen concentration (rO2), ambient pressure (pi) and injection pressure (pj) conditions, which might help in controlling the operation in an argon-circulated hydrogen engine.
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DOI
https://doi.org/10.4271/2012-01-1312
Pages
14
Citation
Mansor, M., Nakao, S., Nakagami, K., Shioji, M. et al., "Ignition Characteristics of Hydrogen Jets in an Argon-Oxygen Atmosphere," SAE Technical Paper 2012-01-1312, 2012, https://doi.org/10.4271/2012-01-1312.
Additional Details
Publisher
Published
Apr 16, 2012
Product Code
2012-01-1312
Content Type
Technical Paper
Language
English