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Title: Investigation of particulate formation during diesel spray combustion

Technical Report ·
OSTI ID:5837696

The objective of the contract is to conduct an experimental and analytical research program to investigate strategies for using coherent anti-Stokes Raman scattering (CARS) laser diagnostic techniques for detecting the degree of fuel pyrolysis and determining fuel-air ratio. Smoke and NO{sub x} production rates depend in a complex way on the local temperature, the evaporation of the diesel spray, the local fuel-air ratio, and the pyrolysis history of the fuel. Furthering the ability of CARS to provide more of this information may give engine designers more insight into the combustion process and allow them to create engines which produce fewer particulates or lower amounts of NO{sub x}. Controlling the production rates is preferable to processing emissions. If they cannot be suppressed simultaneously, adjusting the tradeoff between producing particulates or NO{sub x} may be helpful if an exhaust processing method is available for one of them.

Research Organization:
United Technologies Research Center, East Hartford, CT (United States)
Sponsoring Organization:
USDOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-87AL43058
OSTI ID:
5837696
Report Number(s):
DOE/AL/43058-T9; ON: DE92008949
Country of Publication:
United States
Language:
English