Mathematical Problems in Engineering / 2015 / Article / Tab 2

Research Article

Optimal Sizing of a Photovoltaic-Hydrogen Power System for HALE Aircraft by means of Particle Swarm Optimization

Table 2

Input data used for the cases of study.

ParameterValueUnitDescription

8kgMass of control, energy manage, and communication system
dayDays of the year
hHours of a day
1366.1 W/m2Solar constant (ASTM E-490)
0.028Drag coefficient (20 km altitude, 29.49 m/s level flight velocity and 155185 Re number) [17]
L/D28.5Ratio of lift-drag (20 km altitude, 29.49 m/s level flight velocity and 155185 Re number) [17]
0.6Efficiency of propulsion system
0.15Efficiency of photovoltaic system
1kg/m2Mass density of solar cells
1500 W/kgSpecific power density of URFC

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