Add to ORKGHigh-repetition-rate laser-induced fluorescence measurements of fuel and OH concentrations in internal combustion engines are demonstrated. Series of as many as eight fluorescence images, with a temporal resolution ranging from 10 mus to 1 ms, are acquired within one engine cycle. A multiple-laser system in combination with a multiple-CCD camera is used for cycle-resolved imaging in spark-ignition, direct-injection stratified-charge, and homogeneous-charge compression-ignition engines. The recorded data reveal unique information on cycle-to-cycle variations in fuel transport and combustion. Moreover, the imaging system in combination with a scanning mirror is used to perform instantaneous three-dimensional fuel-concentration measurements
In the work presented in the thesis, different laser spectroscopic techniques were utilized for meas...
The requirements on high efficiency and low emissions of internal combustion engines (ICEs) raise th...
For many decades, research work on combustion has been focused on improving combustion efficiency an...
Tunable excimer lasers are used to obtain 2-D images of molecular (and some state-specific) density ...
Modern combustion devices, such as direct-injected spark-ignition engines, place strict requirements...
Three-dimensional imaging of fuel tracer planar laser-induced fluorescence in a homogeneous charge c...
High repetition rate laser diagnostics has proven to be a useful tool for studying combustion phenom...
Knowledge of in-situ fuel distributions in practical combustion devices, such as internal combustion...
An innovative technique has been demonstrated to achieve crank-angle-resolved planar laser-induced f...
Planar laser induced fluorescence (LIF) has been utilized for two-dimensional imaging in combustion ...
When conducting laser based diagnostics in combustion environments it is often desirable to obtain t...
High-speed laser diagnostics was utilized for single-cycle resolved studies of the fuel distribution...
The use of a frequency-tripled, diode-pumped Nd:YAG laser in combination with a CMOS camera lens-cou...
In recent years, new laser and camera technology have enabled the development of high-speed imaging ...
High-speed laser diagnostics was utilized for singlecycle resolved studies of the formaldehyde distr...
In the work presented in the thesis, different laser spectroscopic techniques were utilized for meas...
The requirements on high efficiency and low emissions of internal combustion engines (ICEs) raise th...
For many decades, research work on combustion has been focused on improving combustion efficiency an...
Tunable excimer lasers are used to obtain 2-D images of molecular (and some state-specific) density ...
Modern combustion devices, such as direct-injected spark-ignition engines, place strict requirements...
Three-dimensional imaging of fuel tracer planar laser-induced fluorescence in a homogeneous charge c...
High repetition rate laser diagnostics has proven to be a useful tool for studying combustion phenom...
Knowledge of in-situ fuel distributions in practical combustion devices, such as internal combustion...
An innovative technique has been demonstrated to achieve crank-angle-resolved planar laser-induced f...
Planar laser induced fluorescence (LIF) has been utilized for two-dimensional imaging in combustion ...
When conducting laser based diagnostics in combustion environments it is often desirable to obtain t...
High-speed laser diagnostics was utilized for single-cycle resolved studies of the fuel distribution...
The use of a frequency-tripled, diode-pumped Nd:YAG laser in combination with a CMOS camera lens-cou...
In recent years, new laser and camera technology have enabled the development of high-speed imaging ...
High-speed laser diagnostics was utilized for singlecycle resolved studies of the formaldehyde distr...
In the work presented in the thesis, different laser spectroscopic techniques were utilized for meas...
The requirements on high efficiency and low emissions of internal combustion engines (ICEs) raise th...
For many decades, research work on combustion has been focused on improving combustion efficiency an...