Environmental Engineering Reference
In-Depth Information
Fig. 2 Schematic diagram of fuel/air injection system
Table 1 Properties of Jet A and PME
Fuel
Density
(kg/m
3
)
Kinematic
viscosity (at
27
Lower heating
value (MJ/kg)
Equivalent
molecular
formula
Oxygen
content
(%wt.)
Boiling
point
(
°
C) (cSt)
°
C)
Jet A
802
1.79
42.8
C
13
H
23
0.00
145
-
300
PME
868.5
4.71
36.77
C
17.05
H
32.09
O
2
11.9
350
354
-
The properties of the tested fuels are presented in Table
1
. Neat PME, designated
as P100, has signi
cant oxygen content compared to Jet A. The lower heating value of
PME is about 10 % less than that of Jet A. The air
fl
ow rate was held constant, and the
fuel
) of 2, 3, and 7.
The test conditions are presented in Table
2
. The Reynolds number (based on the bulk
velocity of fuel
fl
flow rate was altered to result in burner exit equivalence ratios (
Φ
air mixture, mixture density, viscosity, and inner diameter of the
injector) was in the range of 200
-
900, indicating laminar flow which was confirmed
by the visual appearance of the
-
fl
ame.
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