Effect of high pressure injection on soot formation processes in a rapid compression machine to simulate diesel flames
The characteristics of diesel spray and flame in a quiescent atmosphere were studied as a function of injection pressure ranging from 30 to 110 MPa. Measurements included the spray form and Sauter mean diameter of a non-evaporating spray, the liquid phase penetration of an evaporating spray and the visualization of sooting zone in a flame. Experimental results show that high pressure injection improves the atomization and air entrainment of non-evaporating spray and that the liquid phase penetration of evaporating spray is hardly affected by injection pressure, demonstrating a promotion of evaporation with injection pressure. Visualization of the sooting zone in a flame made it clear that high pressure injection is advantageous in reducing soot formation and shortening the combustion duration.
- OSTI ID:
- 6977727
- Report Number(s):
- CONF-8709177-
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330102* -- Internal Combustion Engines-- Diesel
330603 -- Vehicle Design Factors-- Engine System
330704 -- Emission Control-- Hydrocarbons
AIR
COMBUSTION CHAMBERS
COMBUSTION PROPERTIES
CONTROL SYSTEMS
DATA
DIESEL ENGINES
EMISSION
ENGINES
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
HIGH PRESSURE
INFORMATION
INTERNAL COMBUSTION ENGINES
NUMERICAL DATA
SOOT
WASTES