Environmental Engineering Reference
In-Depth Information
TABLE 8.5
Characteristics of Prototype Fuel Cell Vehicles
Manufacturer
Daimler
Daimler
Ford
Daimler
Daimler
Model
NECAR 4
NECAR 3
P2000
NECAR 2
NEBUS
Vehicle Class
A (compact)
A (compact)
(midsize)
V (van)
O405N(bus)
Passengers
5
5
6
34
Vehicle mass (t)
1.48
1.48
1.52
2.7
14
Frontal area (m 2 )
2.2
2.2
3.6
7
Electric power (kW)
55
50
90
50
250
Electric power/vehicular mass (kW/t)
37.2
33.8
59.2
18.5
17.9
Number of cells
320
300
400
300
1500
Cell mass (kg)
275
300
173
300
1400
Fuel cell specific power (kW/kg)
0.20
0.17
43
0.17
0.18
Fuel type
Hydrogen (l)
Methanol (l)
Hydrogen (g)
Hydrogen (g)
Hydrogen (g)
Fuel mass (kg)
5
30.1
1.41
5
21
Fuel heating value (MJ)
709
717.2
200
709
2977
Fuel volume (L)
70.6
38
280
1050
Fuel tank mass (kg)
80
1900
Range (km)
450
400
161
250
250
Top speed (km/h)
145
145
110
80
Vehicle energy economy (km/MJ) a
0.635
0.558
0.5
0.353
0.084
Equivalent fuel economy (km/L) a , b
20.0
17.6
15.8
11.1
2.65
Equivalent fuel economy (km/L) b , c
11.2
14.1
12.6
8.9
2.12
CI class fuel economy d
(km/L)
20.0
20.0
11.3
SI class fuel economy (km/L)
14.1
14.1
8.7
a Does not include synthetic fuel energy penalty.
b Converted to energy density of gasoline.
c Includes penalties of 20 % for methane conversion to hydrogen or methanol and 30 % for hydrogen gas to liquid.
d Adjusted for volume equivalent of gasoline.
Figure 8.8 Left: Artist's sketch of the interior layout of the fuel cell (center) and liquid hydrogen fuel tank
(rear) in the NECAR 4 vehicle. Right: The NEBUS municipal bus, showing the fuel cell in the lower rear
and the hydrogen gas storage tanks on the roof.
 
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