Characterization of a Set of ECN Spray A Injectors: Nozzle to Nozzle Variations and Effect on Spray Characteristics

The Engine Combustion Network (ECN) is becoming a leading group concerning the experimental and computational analysis of Engine combustion. In order to establish a coherent database for model validation, all the institutions participating to the experimental effort carry out experiments at well-defined standard conditions (in particular at Spray A conditions: 22.8kg/m3, 900K, 0% and 15% O2) and with Diesel injectors having the same specifications. Due to the rising number of ECN participants and also to unavoidable damages, additional injectors are required. This raises the question of injector's characteristics reproducibility and of the appropriate method to introduce such new injectors in the ECN network. In order to investigate this issue, a set of 8 new injectors with identical nominal Spray A specification were purchased and 4 of them were characterized using ECN standard diagnostics. In particular, the measurements include the nozzle hole diameter, the rate of injection, the liquid and vapor penetrations, the auto-ignition delay and the lift-off length. Variations of ambient temperature, oxygen concentration and density have also been performed. In general the results show similar behavior to ECN standard injectors, confirming that this set of new injectors can be integrated into the pool of ECN injectors. However, discrepancies between spray characteristics were observed, although the injector specifications and the boundary conditions were sensibly the same. The sources of variations from injector to injector are analyzed in order to provide new information on the reproducibility of injectors characteristics, and improve the comparison methodology between experimental data and simulation.

• Record URL:
  • https://doi.org/10.4271/2013-24-0037
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463936
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Malbec, Louis-Marie
  • Egúsquiza, Julio
  • Bruneaux, Gilles
  • Meijer, Maarten
• Conference:
  • 11th International Conference on Engines & Vehicles
  • Location: Capri Napoli, Italy
  • Date: 2013-9-15 to 2013-9-19
• Publication Date: 2013-9-8

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 1642-1660
• Serial:
  • SAE International Journal of Engines
  • Volume: 6
  • Issue Number: 3
  • Publisher: SAE International
  • ISSN: 1946-3936
  • EISSN: 1946-3944
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-03/

Subject/Index Terms

• TRT Terms: Chemical sprays; Combustion; Engines; Fuel injection; Motor vehicles; Nozzles
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01654634
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2013-24-0037
• Files: TRIS, SAE
• Created Date: Dec 27 2017 10:20AM