The rapid advancements in civil and military aviation will lead to an increased usage of energy-dense jet fuels. For effective usage of these aviation fuels like JetA1, the storage is carried out in Bulk Petroleum Installations (BPI), with an average capacity of 100 million liters or more. The fuel from BPI is distributed to aircraft through refuellers or hydrant systems. The flashpoint of JetA1 is 38°C, which leads to quick fuel vaporization at normal temperatures. Hence, utmost care should be taken to avoid spillage of aviation fuels otherwise it may result in the formation of a vapor cloud. The high flammability of JetA1 could lead to vapor cloud explosion in the presence of a small ignition source which can be extremely destructive than deflagration alone. The present BPIs do not have adequate safety systems to avert such vapor cloud explosions. The present study focuses on suppressing the detonations in JetA1-air vapor cloud explosions using CO2 and H2O as inhibitors or suppressants. The numerical study is carried out using one-dimensional ZND calculations for JetA1 detonations. A detailed reaction kinetics model is used in the present study to address the detonation chemistry of JetA1. The amount of weight of suppressant required for suppressing a given quantity of JetA1-air mixture is calculated and the efficacy of suppressants is evaluated. The various detonation length and time scales like induction and exothermic length and time scales are also calculated to investigate the inhibition efficiency of flame inhibitors.

1.
E.D.
Mukhim
,
T.
Abbasi
,
S.M.
Tauseef
,
S.A.
Abbasi
, “
A method for the estimation of overpressure generated by open air hydrogen Explosions
,”
Journal of Loss Prevention in the Process Industries
52
(
2018
), pp.
99
107
.
2.
E.S.
Oran
,
V.N.
Gamez
, “
Origins of deflagration to detonation transition in gas phase detonation
,”
Combustion and Flame
148
(
2007
), pp.
4
47
.
3.
E.S.
Oran
, “
Understanding explosions – From catastrophic accidents to creation of the Universe
,”
Proceedings of Combustion Institute
35
(
2015
), pp.
1
35
.
4.
E.S.
Oran
,
G.
Chamberlain
,
A.
Pekalski
, “
Mechanisms, and occurrence of detonations in vapor cloud explosions
,”
Progress in Energy and Combustion Science
77
(
2020
)
100804
.
5.
A.
Ahmed
,
A. Q.
Al-Amin
,
A.F.
Ambrose
,
R.
Saidur
, “
Hydrogen fuel and transport system: a sustainable and environmental future
,”
International Journal of Hydrogen Energy
41
(
3
) (
2016
), pp.
1369
1380
.
6.
S.
Browne
,
J.
Ziegler
, and
J.E.
Shepherd
, “
Numerical solution methods for shock and detonation jump conditions
,”
GALCIT Report FM2006
6
(
2008
):
90
.
7.
D.G.
Goodwin
,
R. L.
Speth
,
H.K.
Moffat
, and
B.W.
Weber
, “
Cantera: An object-oriented software toolkit for chemical kinetics, thermodynamics, and transport processes
,” https://www.cantera.org, 2018. Version 2.4.0.
8.
H.
Wang
,
R.
Xu
,
K.
Wang
,
C.T.
Bowman
,
R.K.
Hanson
,
D.F.
Davidson
,
K.
Brezinsky
, and
F.N.
Egolfopoulos
, “
A Physics-based Approach to Modeling Real-fuel Combustion Chemistry - I. Evidence from Experiments, and Thermodynamic, Chemical Kinetic and Statistical Considerations
,”
Combustion and Flame
193
(
2018
), pp.
502
519
.
9.
A. A.
Vasil'ev
, “
Cell Size as the Main Geometric Parameter of a Multifront Detonation Wave
,”
Journal of propulsion and Power
22
, (
2006
).
10.
C.K.
Westbrook
and
P.A.
Urtiew
, “
Chemical Kinetics of Hydrocarbon Oxidation in Gaseous Detonations
,”
Combustion, Explosion and Shockwaves
19
(
1983
), pp.
753
766
.
11.
T.
Lu
,
C.K.
Law
,
Y.
Ju
, “
Some Aspects of Chemical Kinetics in Chapman–Jouguet Detonation: Induction Length Analysis
,”
Journal of Propulsion and Power
19
(
2003
), pp.
901
907
.
12.
J. H.S.
Lee
,
The Detonation Phenomenon
,
Cambridge University Press
,
Cambridge, U.K
.,
2008
.
13.
J.
Crane
,
X.
Shi
,
A.V.
Singh
,
Y.
Tao
, and
H.
Wang
, “
Isolating the effect of induction length on detonation structure: Hydrogen-oxygen detonation promoted by ozone
,”
Combustion and Flame
200
(
2019
), pp.
44
52
.
14.
D.S.
Kumar
,
K.
Ivin
, and
A.V.
Singh
, “
Sensitizing Gaseous Detonations for Hydrogen/Ethylene-Air Mixtures using Ozone and H2O2 as dopants for Application in Rotating Detonation Engines
,”
Proceedings of the Combustion Institute
38
(
3
) (
2021
), pp.
3825
3834
.
15.
D.S.
Kumar
, and
A.V.
Singh
, “
Inhibition of Hydrogen-Oxygen/Air Gaseous Detonations using CF3I, H2O, and CO2
”,
Fire Safety Journal
124
(
2021
), pp.
103405
.
16.
A.
Dahake
, and
A.V.
Singh
, “
Numerical Study on NOx Emissions from a Synthetic Biofuel for Applications in Detonation-based Combustors
,”
AIAA 2021-3678, AIAA Propulsion and Energy 2021 Forum
, pp.
3678
, 9-11 August
2021
, Virtual Event.
17.
M.S.K.
Iyer
, and
A.V.
Singh
, “
NOx Emissions from Jet A-air Detonations
,”
AIAA 2021-3679, AIAA Propulsion and Energy 2021 Forum
, pp.
3679
, 9-11 August
2021
, Virtual Event.
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