Ignition delay time measurements of primary reference fuel blends

Ignition delay times of four different primary reference fuels (PRF), mixtures of n-heptane and iso-octane, were measured behind reflected shock waves in a high-pressure shock tube facility. The PRFs were formulated to match the RON of two high-octane gasolines (RON 95 and 91) and two prospective lo...

Full description

Saved in:
Bibliographic Details
Published in:Combustion and flame 2017-04, Vol.178, p.205-216
Main Authors: AlAbbad, Mohammed, Javed, Tamour, Khaled, Fethi, Badra, Jihad, Farooq, Aamir
Format: Article
Language:English
Subjects:
Chemical reactions
Delay
Equivalence ratio
Fluid dynamics
Gasoline
Heptanes
Ignition
Ignition delay times
Iso-octane
N-heptane
Naphtha
Octane
Primary reference fuel
Sensitivity analysis
Shock tube
Shock waves
Simulation
Studies
Time measurement
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ignition delay times of four different primary reference fuels (PRF), mixtures of n-heptane and iso-octane, were measured behind reflected shock waves in a high-pressure shock tube facility. The PRFs were formulated to match the RON of two high-octane gasolines (RON 95 and 91) and two prospective low-octane naphtha fuels (RON 80 and 70). Experiments were carried out over a wide range of temperatures (700–1200K), pressures (10, 20, and 40bar) and equivalence ratios (0.5 and 1). Kinetic modeling predictions from four chemical kinetic mechanisms are compared with the experimental data. Ignition delay correlations are developed to reproduce the measured ignition delay times. Brute force sensitivity analyses are carried out to identify reactions that affect ignition delay times at specific temperature, pressure and equivalence ratio. The large experimental data set provided in the current work will serve as a benchmark for the validation of chemical kinetic mechanisms of primary reference fuel blends.
ISSN:0010-2180
1556-2921
DOI:10.1016/j.combustflame.2016.12.027