Effects of injection pressure on ignition and combustion characteristics of impinging diesel spray

Wei Du*, Qiankun Zhang, Zheng Zhang, Juejue Lou, Wenhua Bao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

The constant injection mass is a criterion for measuring the thermal efficiency of diesel engines. In this study, the effects of the injection pressure on the ignition and combustion characteristics of an impinging diesel spray are investigated for a constant injection mass. Experiments are performed in a constant volume combustion chamber including a high-pressure common-rail injector with a single-hole nozzle. A high-speed camera is used to capture the ignition and combustion behavior. Variation laws for the ignition delay, ignition location, combustion duration, flame area, spatially integrated natural luminosity, and time integrated natural luminosity are obtained by analyzing the images captured in these experiments.

Original languageEnglish
Pages (from-to)1163-1168
Number of pages6
JournalApplied Energy
Volume226
DOIs
Publication statusPublished - 15 Sept 2018

Keywords

  • Combustion
  • Constant injection mass
  • Ignition
  • Impinging diesel spray
  • Injection pressure

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