Combustion characteristics of natural gas injected into a constant volume vessel. (1st January 2019)

• Record Type: Journal Article
• Authors: Hu, Erjiang; Huang, Shihan; Ku, Jinfeng; Huang, Zuohua
• Is Part Of: Fuel. Volume 235(2019)
• Page Start: 1146
• Page End: 1158
• Publication Date: 2019-01-01
• Subjects: Natural gas -- Injection -- Combustion characteristics -- Flame morphology; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2018.08.101
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: The combustion characteristics of injected natural gas were studied. The influence of equivalence ratio on combustion characteristics was analyzed. The influence of temperature on combustion characteristics was analyzed. Abstract: The combustion characteristics of injected natural gas based on experiments were carried out in a constant volume vessel. The influences of equivalence ratio, temperature and premix ratio on the flame morphology and combustion characteristics were analyzed. The flame front is wrinkled and twisted during the flame propagation, which shows the extreme randomness of injection combustion caused by the strong turbulence. The maximum pressure and maximum heat release rate of injection combustion are larger than premixed combustion, with less time reaching the maximum pressure, according to the progress of the pressure in the vessel. The initial and main combustion durations of the injection combustion are also shorter than that of premixed combustion.