Research Article

Comprehensive Methodology to Evaluate Parasitic Energy Consumption for Different Types of Dual-Axis Sun Tracking Systems

Table 1

Specification of the dual-axis sun tracking systems for the CPV system [3].

DescriptionValue

Solar collector area, 25 m2
Power conversion efficiency, 30%
Optical efficiency, 85%
Angular speed of the primary motor, 120 rpm
Angular speed of the secondary motor, 120 rpm
Gear ratio of the primary driving mechanism, 4400
Gear ratio of the secondary driving mechanism, 4400
AE-STSPD-STSHD-STS
Power rating of the primary motor, 99 W99 W99 W
Power rating of the secondary motor, 66 W99 W99 W

For AE-STS, the azimuth motor has lower power rating due to the movement not against the gravitational pull.