The laminar burning speeds of Jet-A/air and three different samples of jet propellant (JP-8)/air mixtures have been measured and the onset of auto-ignition in JP-8/air premixed mixtures has been determined. The experiments were made in a constant volume spherical vessel, which can withstand high pressures up to 400 atm. Burning speed was calculated from dynamic pressure rise due to the combustion process in the vessel. A thermodynamic model based on the pressure rise was used to determine the burning speed. The burning speeds were measured in lean mixtures for pressures of 1–4.5 atm and temperatures of 493–700 K. The onset of auto-ignition of JP-8 fuels was evaluated by observing intense fluctuations of pressure data during the explosion of the unburned gas. It was revealed that Jet-A and JP-8 have very similar burning speeds; however, auto-ignition temperatures of various samples of JP-8 were slightly different from each other. Auto-ignition of these fuels was much more sensitive to temperature rather than pressure.

References

References
1.
Fernandes
,
G.
,
Fuschetto
,
J.
,
Filipi
,
Z.
,
Assanis
,
D.
, and
McKee
,
H.
, 2007, “
Impact of Military JP-8 Fuel on Heavy Duty Diesel Engine Performance and Emissions
,”
Proc. Inst. Mech. Eng., Part D (J. Automob. Eng.)
,
221
(
8
), pp.
957
970
.
2.
Maurice
,
L. Q.
,
Lander
,
H.
,
Edwards
,
T.
, and
Harrison
,
W. E.
, “
Advanced Aviation Fuels: A Look Ahead via a Historical Perspective
,”
Fuel
,
80
, pp.
747
756
.
3.
Kouremenos
,
D. A.
,
Rakopoulos
,
C. D.
, and
Hountalas
,
D. T.
, 1997, “
Experimental Investigation of the Performance and Exhaust Emissions of a Swirl Chamber Diesel Engine Using JP8 Aviation Fuel
,”
Int. J. Energy Res.
,
21
(
12
), pp.
1173
1185
.
4.
Rawson
,
P.
, 2001, “
AMRL Evaluation of the JP8+100 Jet Fuel Thermal Stability Additive
,” DSTO Aeronautical and Maritime Research Laboratory, Airframes and Engines Division, Technical Report No. DSTO-TR-1135.
5.
Heneghan
,
S. P.
,
Zabarnick
,
S.
,
Ballal
,
D. R.
, and
Harrison
,
W. E.
, III
, 1996, “
JP-8+100: The Development of High-Thermal-Stability Jet Fuel
,”
ASME J. Energy Resour. Technol.
,
118
, pp.
170
179
.
6.
Dagaut
,
P.
, and
Cathonnet
,
M.
, 2006, “
The Ignition, Oxidation, and Combustion of Kerosene: A Review of Experimental and Kinetic Modeling
,”
Prog. Energy Combust. Sci.
,
32
(
1
), pp.
48
92
.
7.
Agosta
,
A.
,
Cernansky
,
N. P.
,
Miller
,
D. L.
,
Faravelli
,
T.
, and
Ranzi
,
E.
, 2004, “
Reference Components of Jet Fuels: Kinetic Modeling and Experimental Results
,”
Exp. Therm. Fluid Sci.
,
28
(
7
), pp.
701
708
.
8.
Humer
,
S.
,
Frassoldati
,
A.
,
Granata
,
S.
,
Faravelli
,
T.
,
Ranzi
,
E.
,
Seiser
,
R.
, and
Seshadri
,
K.
, 2007, “
Experimental and Kinetic Modeling Study of Combustion of JP8, its Surrogates and Reference Components in Laminar Nonpremixed Flows
,”
Proc. Combust. Inst.
,
31
(
1
), pp.
393
400
.
9.
Dam
,
B.
,
Ardha
,
V.
, and
Choudhuri
,
A.
, 2010, “
Laminar Flame Velocity of Syngas Fuels
,”
ASME J. Energy Resour. Technol.
,
132
, p.
044501
.
10.
Monteiro
,
E.
, and
Rouboa
,
A.
, 2011, “
Measurements of the Laminar Burning Velocities for Typical Syngas–Air Mixtures at Elevated Pressures
,”
ASME J. Energy Resour. Technol.
,
133
, p.
031002
.
11.
Yilmaz
,
N.
, and
Burl Donadlson
,
A.
, 2007, “
Modeling of Chemical Processes in a Diesel Engine With Alcohol Fuels
,”
ASME J. Energy Resour. Technol.
,
129
, pp.
355
359
.
12.
Pöschl
,
M.
, and
Sattelmayer
,
T.
, 2008, “
Influence of Temperature Inhomogeneities on Knocking Combustion
,”
Combust. Flame
,
153
(
4
), pp.
562
573
.
13.
Kumar
,
K.
, and
Sung
,
C. J.
, 2010, “
An Experimental Study of the Autoignition Characteristics of Conventional Jet Fuel/Oxidizer Mixtures: Jet-A and JP-8
,”
Combust. Flame
,
157
, pp.
676
685
.
14.
Metghalchi
,
M.
, and
Keck
,
J. C.
, 1980, “
Laminar Burning Velocity of Propane-Air Mixtures at High Temperature and Pressure
,”
Combust. Flame
,
38
, pp.
143
154
.
15.
Metghalchi
,
M.
, and
Keck
,
J. C.
, 1982, “
Burning Velocities of Mixtures of Air with Methanol, Isooctane, and Indolene at High Pressure and Temperature
,”
Combust. Flame
,
48
, pp.
191
210
.
16.
Hui
,
H.
,
Metghalchi
,
M.
, and
Keck
,
J. C.
, 1999, “
Estimation of the Thermodynamic Properties of Unbranched Hydrocarbons
,”
ASME J. Energy Resour. Technol.
,
121
, pp.
45
50
.
17.
Hui
,
H.
,
Metghalchi
,
M.
, and
Keck
,
J. C.
, 2000, “
Estimation of the Thermodynamic Properties of Branched Hydrocarbons
,”
ASME J. Energy Resour. Technol.
,
122
, pp.
147
152
.
18.
Elia
,
M.
,
Ulinski
,
M.
, and
Metghalchi
,
M.
, 2001, “
Laminar Burning Velocity of Methane-Air-Diluent Mixtures
,”
ASME J. Eng. Gas Turbines Power
,
123
, pp.
190
196
.
19.
Parsinejad
,
F.
,
Arcari
,
C.
, and
Metghalchi
,
H.
, 2006, “
Flame Structure and Burning Speed of JP-10 Air Mixtures
,”
Combust. Sci. Technol.
,
178
, pp.
975
1000
.
20.
Eisazadeh-Far
,
K.
,
Moghaddas
,
A.
,
Al-Mulki
,
J.
, and
Metghalchi
,
H.
, 2011, “
Laminar Burning Speeds of Ethanol/Air/Diluent Mixtures
,”
Proc. Combust. Inst.
,
33
, pp.
1021
1027
.
21.
Rahim
,
F.
,
Eisazadeh-Far
,
K.
,
Parsinejad
,
F.
,
Andrews
,
R. J.
, and
Metghalchi
,
H.
, 2008, “
A Thermodynamic Model to Calculate Burning Speed of Methane-Air-Diluent Mixtures
,”
Int. J. Thermodyn.
,
11
, pp.
151
161
.
22.
Eisazadeh-Far
,
K.
,
Moghaddas
,
A.
,
Metghalchi
,
H.
, and
Keck
,
J. C.
, 2011, “
The Effect of Diluent on Flame Structure and Laminar Burning Speeds of JP-8/oxidizer/diluent Premixed Flames
,”
Fuel
,
90
, pp.
1476
1486
.
23.
Eisazadeh-Far
,
K.
,
Moghaddas
,
A.
,
Rahim
,
F.
, and
Metghalchi
,
H.
, 2010, “
Burning Speed and Entropy Production Calculation of a Transient Expanding Spherical Laminar Flame Using a Thermodynamic Model
,”
Entropy
,
12
, pp.
2485
2496
.
24.
Eisazadeh-Far
,
K.
,
Parsinejad
,
F.
, and
Metghalchi
,
H.
, 2010, “
Flame Structure and Laminar Burning Speeds of JP-8/Air Premixed Mixtures at High Temperatures and Pressures
,”
Fuel
,
89
, pp.
1041
1049
.
25.
Moghaddas
,
A.
,
Eisazadeh-Far
,
K.
, and
Metghalchi
,
H.
, 2012, “
Laminar Burning Speed Measurement of Premixed n-Decane/Air Mixtures Using Spherically Expanding Flames at High Temperatures and Pressures
,”
Combust. Flame
,
159
, pp.
1437
1443
.
26.
Heywood
,
J.
, 1988,
Internal Combustion Engine Fundamentals
,
McGraw-Hill Series in Mechanical Engineering
,
McGraw-Hill, Singapore
, pp.
457
470
.
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