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.
Issue Section:
Fuel Combustion
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
.Copyright © 2012
by American Society of Mechanical Engineers
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