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Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines

Andersson, Öivind LU (2000) In Lund reports on combustion physics 61.
Abstract
Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO.



Fuel dynamics is one of the most central problems in engine design since many performance parameters are affected by it; emission formation, efficiency, drivability etc. The studies include cycle-resolved measurements of short-circuiting losses in two-stroke engines, mixture stratification in a direct-injection gasoline engine, and mixture formation in DI diesel engines.



NO is one of the most harmful pollutants from combustion and is subject to tightening emission regulations. Absolute NO concentrations were determined in... (More)
Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO.



Fuel dynamics is one of the most central problems in engine design since many performance parameters are affected by it; emission formation, efficiency, drivability etc. The studies include cycle-resolved measurements of short-circuiting losses in two-stroke engines, mixture stratification in a direct-injection gasoline engine, and mixture formation in DI diesel engines.



NO is one of the most harmful pollutants from combustion and is subject to tightening emission regulations. Absolute NO concentrations were determined in a near-production spark ignition engine, and a two-photon detection scheme was evaluated for use in practical applications.



Furthermore, an alternative fuel for diesel engines, DME, was investigated with respect to optical properties and fuel properties when used in DI diesel engines.



One of the major advantages of using laser diagnostics in this context is their unique capability of providing simultaneous multi-point information in two dimensions, e.g. on species concentrations. They also feature superior spatial and temporal resolution and are, almost always, non-intrusive. The use of probe sampling to determine species concentrations yields lower resolution in space and time and inevitably disturbs flows and temperature fields. (Less)
Please use this url to cite or link to this publication:
author
opponent
  • Dr Drake, Michael C., General Motors R&D Center, Warren, MI
organization
publishing date
type
Thesis
publication status
published
subject
keywords
Motors and propulsion systems, LIF, Laser Diagnostics, Rayleigh Scattering, Fluorescence, Combustion, Pollutant, Nitric Oxide, Spray Combustion, DME, Laserteknik, Laser technology, Motorer, framdrivningssystem, Physics, Fysik, Fysicumarkivet A:2000:Andersson
in
Lund reports on combustion physics
volume
61
pages
80 pages
publisher
Department of Combustion Physics, Lund University
defense location
Lecture Hall B, Dept. of Physics
defense date
2000-12-15 13:15
external identifiers
  • other:ISRN: LUTFD2/TFCP--61--SE
ISSN
1102-8718
language
English
LU publication?
yes
id
7f0c97e9-3355-4017-966a-1cbdc142e9ec (old id 41150)
date added to LUP
2007-06-20 11:22:51
date last changed
2016-09-19 08:44:52
@phdthesis{7f0c97e9-3355-4017-966a-1cbdc142e9ec,
  abstract     = {Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO.<br/><br>
<br/><br>
Fuel dynamics is one of the most central problems in engine design since many performance parameters are affected by it; emission formation, efficiency, drivability etc. The studies include cycle-resolved measurements of short-circuiting losses in two-stroke engines, mixture stratification in a direct-injection gasoline engine, and mixture formation in DI diesel engines.<br/><br>
<br/><br>
NO is one of the most harmful pollutants from combustion and is subject to tightening emission regulations. Absolute NO concentrations were determined in a near-production spark ignition engine, and a two-photon detection scheme was evaluated for use in practical applications.<br/><br>
<br/><br>
Furthermore, an alternative fuel for diesel engines, DME, was investigated with respect to optical properties and fuel properties when used in DI diesel engines.<br/><br>
<br/><br>
One of the major advantages of using laser diagnostics in this context is their unique capability of providing simultaneous multi-point information in two dimensions, e.g. on species concentrations. They also feature superior spatial and temporal resolution and are, almost always, non-intrusive. The use of probe sampling to determine species concentrations yields lower resolution in space and time and inevitably disturbs flows and temperature fields.},
  author       = {Andersson, Öivind},
  issn         = {1102-8718},
  keyword      = {Motors and propulsion systems,LIF,Laser Diagnostics,Rayleigh Scattering,Fluorescence,Combustion,Pollutant,Nitric Oxide,Spray Combustion,DME,Laserteknik,Laser technology,Motorer,framdrivningssystem,Physics,Fysik,Fysicumarkivet A:2000:Andersson},
  language     = {eng},
  pages        = {80},
  publisher    = {Department of Combustion Physics, Lund University},
  school       = {Lund University},
  series       = {Lund reports on combustion physics},
  title        = {Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines},
  volume       = {61},
  year         = {2000},
}