Advanced

Optical Diagnostics of Laser-Induced and Spark Plug-Assisted Hcci Combustion

Weinrotter, Martin; Wintner, Ernst; Iskra, Kurt; Neger, Theo; Olofsson, Jimmy LU ; Seyfried, Hans LU ; Aldén, Marcus LU ; Lackner, Max; Winter, Franz and Vressner, Andreas LU , et al. (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:
author
, et al. (More)
(Less)
organization
publishing date
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
external identifiers
  • Scopus:84877516457
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
2007-07-04 08:47:56
date last changed
2016-10-13 04:40:45
@misc{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},
  keyword      = {Spark Ignition,Laser Ignition,Engine,HCCI,Combustion,Optical Diagnostics},
  language     = {eng},
  number       = {3},
  pages        = {284--295},
  publisher    = {ARRAY(0x9856240)},
  series       = {SAE Transactions, Journal of Engines},
  title        = {Optical Diagnostics of Laser-Induced and Spark Plug-Assisted Hcci Combustion},
  volume       = {114},
  year         = {2005},
}