Prediction of spark kernel development in constant volume combustion

Journal Article · Tue Sep 01 00:00:00 EDT 1987 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(87)90123-4· OSTI ID:6217161

Lim, M T; Anderson, R W; Arpaci, V S

Combustion initiation is studied in atmospheric pressure propane-air mixtures in a constant volume bomb with a high speed (10,000 fps) laser schlieren system. The spark current and voltage waveforms are simultaneously recorded for later model input. A phenomenological model for early flame kernel development is presented which accounts for the initial, breakdown generated, spark kernel and its subsequent growth. The kernel growth is initially controlled by the breakdown process and the subsequent electrical power input. A new, spark power induced, mass entrainment term is shown to model this initially rapid volume increase adequately while later growth is mainly dominated by diffusion. Results and model comparisons are presented for the effects of power input, spark energy, and equivalence ratio.

• Research Organization: Tech. Res. Inst., Hyundai Precision and Industry Co. Ltd., Seoul
• OSTI ID: 6217161
• Journal Information: Combust. Flame; (United States), Vol. 69:3
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
33 ADVANCED PROPULSION SYSTEMS
PROPANE
COMBUSTION
SPARK IGNITION ENGINES
IGNITION QUALITY
AIR
ATMOSPHERIC PRESSURE
BREAKDOWN
DIFFUSION
ELECTRIC POTENTIAL
ELECTRIC SPARKS
FUEL ECONOMY
IGNITION SYSTEMS
LASERS
MATHEMATICAL MODELS
POWER INPUT
SCHLIEREN METHOD
WAVE FORMS
ALKANES
CHEMICAL REACTIONS
ELECTRIC DISCHARGES
ENGINES
FLUIDS
GASES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
ORGANIC COMPOUNDS
OXIDATION
PHOTOGRAPHY
THERMOCHEMICAL PROCESSES
034000* - Natural Gas- Combustion
330101 - Internal Combustion Engines- Spark-Ignition