Homogeneous Charge Compression Ignition with Water Injection

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.

• Record URL:
  • https://doi.org/10.4271/1999-01-0182
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Christensen, Magnus
  • Johansson, Bengt
• Conference:
  • International Congress & Exposition
  • Location: Detroit Michigan, United States
  • Date: 1998-2-23 to 1998-2-26
• Publication Date: 1998-1-23

Language

• English

Media Info

• Media Type: Web
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Carbon monoxide; Combustion; Compression ignition engines; Ethanol; Ignition systems; Natural gas; Nitrogen oxides; Valve timing; Water
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01793915
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 1999-01-0182
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:16AM