Comparative ignition of hexane and octane isomers in a shock tube

Conference · Mon Feb 01 04:00:00 EST 1993

OSTI ID:6129261

Burcat, A ^[1]; Pitz, W J; Westbrook, C K ^[2]

---

1. Technion-Israel Inst. of Tech., Haifa (Israel). Faculty of Aerospace Engineering
2. Lawrence Livermore National Lab., CA (United States)

Ignition delay times of hexane isomers are investigated behind shock waves. Initial concentrations of fuel oxygen and argon and the post shock temperature were varied systematically in order to establish the influence of these parameters on the ignition delay time. The fuels used were n-octane, 2-methylpentane and 3-methylpentane. The temperature range of the experiments was 1100--1700 K and the initial pressures were 55--200 torr. These experiments are compared with a similar set of experiments performed on octane isomers (n-octane; 2,2,4-trimethylpentane and 2,3,4-trimethylpentane), and the reaction mechanism developed for them.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USILBSF; United States-Israel Binational Science Foundation, Jerusalem (Israel)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6129261
• Report Number(s): UCRL-JC-112692; CONF-9207205--1; ON: DE93016535
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALKANES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
COMPARATIVE EVALUATIONS
EVALUATION
HEXANE
HYDROCARBONS
IGNITION
ISOMERS
KINETICS
ORGANIC COMPOUNDS
REACTION KINETICS
TEMPERATURE RANGE
TEMPERATURE RANGE 1000-4000 K