Optical Diagnostics of Laser-Induced and Spark Plug-Assisted Hcci Combustion
(2005) In SAE Transactions, Journal of Engines 114(3). p.284-295- Abstract
- HCCI (Homogeneous Charge Compression Ignition),
laser-assisted HCCI and spark plug-assisted HCCI
combustion was studied experimentally in a modified
single cylinder truck-size Scania D12 engine equipped
with a quartz liner and quartz piston crown for optical
access. The aim of this study was to find out how and to
what extent the spark, generated to influence or even
trigger the onset of ignition, influences the auto-ignition
process or whether primarily normal compressioninduced
ignition remains prevailing. The beam of a Qswitched
Nd:YAG laser (5 ns pulse duration, 25 mJ
pulse energy) was focused into the centre of the cylinder
to... (More) - HCCI (Homogeneous Charge Compression Ignition),
laser-assisted HCCI and spark plug-assisted HCCI
combustion was studied experimentally in a modified
single cylinder truck-size Scania D12 engine equipped
with a quartz liner and quartz piston crown for optical
access. The aim of this study was to find out how and to
what extent the spark, generated to influence or even
trigger the onset of ignition, influences the auto-ignition
process or whether primarily normal compressioninduced
ignition remains prevailing. The beam of a Qswitched
Nd:YAG laser (5 ns pulse duration, 25 mJ
pulse energy) was focused into the centre of the cylinder
to generate a plasma. For comparison, a conventional
spark plug located centrally in the cylinder head was
alternatively used to obtain sparks at a comparable
location. No clear difference in the heat releases during
combustion between the three different cases of ignition
start could be seen for the fuel of 80/20 iso-octane/nheptane used.
However, with optical diagnostic
methods, namely PLIF (Planar Laser-Induced
Fluorescence), Schlieren photography and
chemiluminescence imaging, differences in the
combustion process could be evaluated. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/168682
- author
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Spark Ignition, Laser Ignition, Engine, HCCI, Combustion, Optical Diagnostics
- in
- SAE Transactions, Journal of Engines
- volume
- 114
- issue
- 3
- pages
- 284 - 295
- publisher
- Society of Automotive Engineers
- ISSN
- 0096-736X
- language
- English
- LU publication?
- yes
- id
- bb75fd9d-ea23-4b51-b433-55ef36419c35 (old id 168682)
- alternative location
- http://www.ingentaconnect.com/search/article?author=vressner%2C+a&year_from=2002&year_to=2007&database=0&pageSize=20&index=4
- http://www.sae.org/technical/papers/2005-01-0129
- date added to LUP
- 2016-04-04 10:34:32
- date last changed
- 2022-01-29 20:31:33
@article{bb75fd9d-ea23-4b51-b433-55ef36419c35, abstract = {{HCCI (Homogeneous Charge Compression Ignition),<br/><br> laser-assisted HCCI and spark plug-assisted HCCI<br/><br> combustion was studied experimentally in a modified<br/><br> single cylinder truck-size Scania D12 engine equipped<br/><br> with a quartz liner and quartz piston crown for optical<br/><br> access. The aim of this study was to find out how and to<br/><br> what extent the spark, generated to influence or even<br/><br> trigger the onset of ignition, influences the auto-ignition<br/><br> process or whether primarily normal compressioninduced<br/><br> ignition remains prevailing. The beam of a Qswitched<br/><br> Nd:YAG laser (5 ns pulse duration, 25 mJ<br/><br> pulse energy) was focused into the centre of the cylinder<br/><br> to generate a plasma. For comparison, a conventional<br/><br> spark plug located centrally in the cylinder head was<br/><br> alternatively used to obtain sparks at a comparable<br/><br> location. No clear difference in the heat releases during<br/><br> combustion between the three different cases of ignition<br/><br> start could be seen for the fuel of 80/20 iso-octane/nheptane used.<br/><br> However, with optical diagnostic<br/><br> methods, namely PLIF (Planar Laser-Induced<br/><br> Fluorescence), Schlieren photography and<br/><br> chemiluminescence imaging, differences in the<br/><br> combustion process could be evaluated.}}, author = {{Weinrotter, Martin and Wintner, Ernst and Iskra, Kurt and Neger, Theo and Olofsson, Jimmy and Seyfried, Hans and Aldén, Marcus and Lackner, Max and Winter, Franz and Vressner, Andreas and Hultqvist, Anders and Johansson, Bengt}}, issn = {{0096-736X}}, keywords = {{Spark Ignition; Laser Ignition; Engine; HCCI; Combustion; Optical Diagnostics}}, language = {{eng}}, number = {{3}}, pages = {{284--295}}, publisher = {{Society of Automotive Engineers}}, series = {{SAE Transactions, Journal of Engines}}, title = {{Optical Diagnostics of Laser-Induced and Spark Plug-Assisted Hcci Combustion}}, url = {{https://lup.lub.lu.se/search/files/5571153/625971.pdf}}, volume = {{114}}, year = {{2005}}, }