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High-Speed LIF Imaging for Cycle-Resolved Formaldehyde Visualization in HCCI Combustion

Olofsson, Jimmy LU ; Seyfried, Hans LU ; Richter, Mattias LU ; Aldén, Marcus LU ; Vressner, Andreas LU ; Hultqvist, Anders LU ; Johansson, Bengt LU and Lombaert, Karine (2005) In SAE Transactions, Journal of Engines 114(3). p.645-652
Abstract
High-speed laser diagnostics was utilized for singlecycle

resolved studies of the formaldehyde distribution in

the combustion chamber of an HCCI engine. A multi-

YAG laser system consisting of four individual Qswitched,

flash lamp-pumped Nd:YAG lasers has

previously been developed in order to obtain laser

pulses at 355 nm suitable for performing LIF

measurements of the formaldehyde molecule. Bursts of

up to eight pulses with very short time separation can be

produced, allowing capturing of LIF image series with

high temporal resolution. The system was used together

with a high-speed framing camera employing eight

intensified CCD... (More)
High-speed laser diagnostics was utilized for singlecycle

resolved studies of the formaldehyde distribution in

the combustion chamber of an HCCI engine. A multi-

YAG laser system consisting of four individual Qswitched,

flash lamp-pumped Nd:YAG lasers has

previously been developed in order to obtain laser

pulses at 355 nm suitable for performing LIF

measurements of the formaldehyde molecule. Bursts of

up to eight pulses with very short time separation can be

produced, allowing capturing of LIF image series with

high temporal resolution. The system was used together

with a high-speed framing camera employing eight

intensified CCD modules, with a frame-rate matching the

laser pulse repetition rate. The diagnostic system was

used to study the combustion in a truck-size HCCI

engine, running at 1200 rpm using n-heptane as fuel. By

using laser pulses with time separations as short as

70 (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
HCCI, High-Speed LIF, Formaldehyde, Combustion, Engine
in
SAE Transactions, Journal of Engines
volume
114
issue
3
pages
645 - 652
publisher
Society of Automotive Engineers
external identifiers
  • scopus:84877496003
ISSN
0096-736X
language
English
LU publication?
yes
id
1468bb41-8b31-4add-a228-cb2916b70854 (old id 168697)
alternative location
http://openurl.ingenta.com/content?genre=article&issn=1533-6204&volume=&issue=2100&spage=91&epage=
http://www.sae.org/technical/papers/2005-01-0641
date added to LUP
2007-07-23 14:57:54
date last changed
2017-05-28 04:26:39
@article{1468bb41-8b31-4add-a228-cb2916b70854,
  abstract     = {High-speed laser diagnostics was utilized for singlecycle<br/><br>
resolved studies of the formaldehyde distribution in<br/><br>
the combustion chamber of an HCCI engine. A multi-<br/><br>
YAG laser system consisting of four individual Qswitched,<br/><br>
flash lamp-pumped Nd:YAG lasers has<br/><br>
previously been developed in order to obtain laser<br/><br>
pulses at 355 nm suitable for performing LIF<br/><br>
measurements of the formaldehyde molecule. Bursts of<br/><br>
up to eight pulses with very short time separation can be<br/><br>
produced, allowing capturing of LIF image series with<br/><br>
high temporal resolution. The system was used together<br/><br>
with a high-speed framing camera employing eight<br/><br>
intensified CCD modules, with a frame-rate matching the<br/><br>
laser pulse repetition rate. The diagnostic system was<br/><br>
used to study the combustion in a truck-size HCCI<br/><br>
engine, running at 1200 rpm using n-heptane as fuel. By<br/><br>
using laser pulses with time separations as short as<br/><br>
70},
  author       = {Olofsson, Jimmy and Seyfried, Hans and Richter, Mattias and Aldén, Marcus and Vressner, Andreas and Hultqvist, Anders and Johansson, Bengt and Lombaert, Karine},
  issn         = {0096-736X},
  keyword      = {HCCI,High-Speed LIF,Formaldehyde,Combustion,Engine},
  language     = {eng},
  number       = {3},
  pages        = {645--652},
  publisher    = {Society of Automotive Engineers},
  series       = {SAE Transactions, Journal of Engines},
  title        = {High-Speed LIF Imaging for Cycle-Resolved Formaldehyde Visualization in HCCI Combustion},
  volume       = {114},
  year         = {2005},
}