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Homogeneous Charge Compression Ignition with Water Injection

Christensen, Magnus LU and Johansson, Bengt LU (1999) In SAE Special Publications 1999(1444).
Abstract
The use of water injection in a homogeneous charge compression ignition (HCCI) engine was experimentally investigated. The purpose of this study was to examine whether it is possible to control the ignition timing and slow down the rate of combustion with the use of water injection. The effects of different water flows, air/fuel ratios and inlet pressures were studied for three different fuels, iso-octane, ethanol and natural gas.



It is possible to control the ignition timing in a narrow range with the use of water injection, but to the prize of an increase in the already high emissions of unburned hydrocarbons. The CO emission also increased. The NOx emissions, which are very low for HCCI, decreased even more when water... (More)
The use of water injection in a homogeneous charge compression ignition (HCCI) engine was experimentally investigated. The purpose of this study was to examine whether it is possible to control the ignition timing and slow down the rate of combustion with the use of water injection. The effects of different water flows, air/fuel ratios and inlet pressures were studied for three different fuels, iso-octane, ethanol and natural gas.



It is possible to control the ignition timing in a narrow range with the use of water injection, but to the prize of an increase in the already high emissions of unburned hydrocarbons. The CO emission also increased. The NOx emissions, which are very low for HCCI, decreased even more when water injection was applied. The amount of water used was of the magnitude of the fuel flow. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Water Injection, HCCI, Combustion, Engine
in
SAE Special Publications
volume
1999
issue
1444
publisher
Society of Automotive Engineers
external identifiers
  • other:SAE Technical Paper 1999-01-0182
  • scopus:33750728344
ISSN
0099-5908
language
English
LU publication?
yes
id
911b7ef7-900c-4bd3-bc86-0b6f6d38325f (old id 538552)
alternative location
http://www.sae.org/technical/papers/1999-01-0182
date added to LUP
2007-09-13 14:02:05
date last changed
2017-07-23 04:31:48
@inproceedings{911b7ef7-900c-4bd3-bc86-0b6f6d38325f,
  abstract     = {The use of water injection in a homogeneous charge compression ignition (HCCI) engine was experimentally investigated. The purpose of this study was to examine whether it is possible to control the ignition timing and slow down the rate of combustion with the use of water injection. The effects of different water flows, air/fuel ratios and inlet pressures were studied for three different fuels, iso-octane, ethanol and natural gas.<br/><br>
<br/><br>
It is possible to control the ignition timing in a narrow range with the use of water injection, but to the prize of an increase in the already high emissions of unburned hydrocarbons. The CO emission also increased. The NOx emissions, which are very low for HCCI, decreased even more when water injection was applied. The amount of water used was of the magnitude of the fuel flow.},
  author       = {Christensen, Magnus and Johansson, Bengt},
  booktitle    = {SAE Special Publications},
  issn         = {0099-5908},
  keyword      = {Water Injection,HCCI,Combustion,Engine},
  language     = {eng},
  number       = {1444},
  publisher    = {Society of Automotive Engineers},
  title        = {Homogeneous Charge Compression Ignition with Water Injection},
  volume       = {1999},
  year         = {1999},
}