Comparison of reactivity in a flow reactor and a single cylinder engine

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Experimental Thermal and Fluid Science

DOI:https://doi.org/10.1016/J.EXPTHERMFLUSCI.2010.02.009· OSTI ID:21320567

Natelson, Robert H; Johnson, Rodney O; Kurman, Matthew S; Cernansky, Nicholas P; Miller, David L ^[1]

---

1. Department of Mechanical Engineering and Mechanics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104-2875 (United States)

The relative reactivity of 2:1:1 and 1:1:1 mixtures of n-decane:n-butylcyclohexane:n-butylbenzene and an average sample of JP-8 were evaluated in a single cylinder engine and compared to results obtained in a pressurized flow reactor. At compression ratios of 14:1, 15:1, and 16:1, inlet temperature of 500 K, inlet pressure of 0.1 MPa, equivalence ratio of 0.23, and engine speed of 800 RPM, the autoignition delay times were, from shortest to longest, the 2:1:1, followed by the 1:1:1, and then the JP-8. This order corresponded with recent results in a pressurized flow reactor, where the preignition oxidation chemistry was monitored at temperatures of 600-800 K, 0.8 MPa pressure, and an equivalence ratio of 0.30, and where the preignition reactivity from highest to lowest was the 2:1:1, followed by the 1:1:1, and the JP-8. This shows that the relative reactivity at low temperatures in the flow reactor tracks the autoignition tendencies in the engine for these particular fuels. (author) the computed experimental error. (author)

• OSTI ID: 21320567
• Journal Information: Experimental Thermal and Fluid Science, Vol. 34, Issue 7; Other Information: Elsevier Ltd. All rights reserved; ISSN 0894-1777
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
33 ADVANCED PROPULSION SYSTEMS
DECANE
PRESSURE RANGE KILO PA
AUTOIGNITION
ACTIVATION ENERGY
ENGINES
TEMPERATURE RANGE 0400-1000 K
CYLINDERS
COMPRESSION RATIO
JET ENGINE FUELS
MIXTURES
OXIDATION
AROMATICS
CYCLOALKANES
HYDROCARBONS
Flow reactors
n-Decane
n-Butylcyclohexane
n-Butylbenzene