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Soot and Spectral Radiation Modeling in ECN Spray A and in Engines

Conference ·
OSTI ID:1354682
 [1];  [2];  [2];  [2];  [2];  [3];  [4];  [4]
  1. Pennsylvania State Univ., University Park, PA (United States); The Pennsylvania State University
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Marquette University (United States)
  4. University of California Merced (United States)
+ Show Author Affiliations
The amount of soot formed in a turbulent combustion system is determined by a complex system of coupled nonlinear chemical and physical processes. Different physical subprocesses can dominate, depending on the hydrodynamic and thermochemical environments. Similarly, the relative importance of reabsorption, spectral radiation properties, and molecular gas radiation versus soot radiation varies with thermochemical conditions, and in ways that are difficult to predict for the highly nonhomogeneous in-cylinder mixtures in engines. Here it is shown that transport and mixing play relatively more important roles as rate-determining processes in soot formation at engine-relevant conditions. It is also shown that molecular gas radiation and spectral radiation properties are important for engine-relevant conditions.
Research Organization:
The Pennsylvania State University
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
DOE Contract Number:
EE0007278
OSTI ID:
1354682
Country of Publication:
United States
Language:
English

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33 ADVANCED PROPULSION SYSTEMS