Models for combustion and formation of nitric oxide and soot in direct injection diesel engines. SAE Paper 760129

Conference · Thu Jan 01 04:00:00 EST 1976

OSTI ID:6726801

Hiroyasu, H; Kadota, T

A mathematical model was developed for predicting the concentration of exhaust nitric oxide, soot and other emissions in a direct injection diesel engine. In the model, it was emphasized to describe the phenomena occurring in the combustion chamber from the microscopic point of view. The prediction was based on the knowledges concerning a single droplet as well as the droplet size distribution in a fuel spray and the spatial and temporal distribution histories of fuel in a combustion chamber. The heterogeneous field of temperature and equivalence ratio, and uniform pressure in the cylinder were postulated. The heat release model gives the burning rate of injected fuel and pressure and temperature history in the cylinder. The concentration of nitric oxide and soot in the cylinder was predicted by the emission formation model. In order to confirm the validity of the theoretical analysis, the calculated results were compared with the experimental results for typical direct injection diesel engine.

• OSTI ID: 6726801
• Report Number(s): CONF-760278-9
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330700 -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION CONTROL
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
DATA
DIESEL ENGINES
ENGINES
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
MATHEMATICAL MODELS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SOOT
SYNTHESIS
THEORETICAL DATA
THERMOCHEMICAL PROCESSES
WASTES