Environmental Engineering Reference
In-Depth Information
dissipations involved during the transient and low load phases of the load fol-
lowing configuration. The data of Table
6.6
show that the power train efficiency
can be mainly affected by the operation of the fuel cell system, through the values
of g
FCS
and g
DC
.
It is necessary to specify that the above efficiency values are evaluated
assuming a value of battery efficiency equals to 100%, and this is justified by the
fact that the use of the batteries to satisfy the power demands is quite limited in
both the cycles, in particular it is practically negligible for the soft hybrid
approach.
A comparison with the commercial scooters powered by 50 cm
3
spark ignition
engines, made in terms of energy consumption per unit of traveled distance on the
same standard driving cycle, evidences that a very strong reduction of consumed
kJ km
-1
is possible for the fuel cell power train, in particular its overall efficiency
results about 2.5 times better than conventional propulsion systems.
References
1. Corbo P, Corcione FE, Migliardini F, Veneri O (2005) Experimental study of a fuel cell power
train for road transport application. J Power Sources 145:610-619
2. Corbo P, Corcione FE, Migliardini F, Veneri O (2006) Experimental assessment of energy-
management strategies in fuel-cell propulsion systems. J Power Sources 157:799-808
3. Corbo P, Migliardini F, Veneri O (2007) Performance investigation of 2.4 kW PEM fuel cell
stack in vehicles. Int J Hydrogen Energ 32:4340-4349
