Enhancement of high-flux solar concentrator


The existing high-flux solar concentration subsystem will be enhanced with respect to heliostats pointing accuracy and spatial stability of spot centroid to reduce spillage and provide the most suitable testing conditions throughout the day at average concentration ratios exceeding 2,500 kW/m2 average on aperture for at least 7 hours per day in summer and 5 hours per day in winter. At present, that challenging irradiance can only be guaranteed for 5 hours in summer and 3 hours in winter, with significant decrease as we move out from solar noon.

Given the ambitious targets in terms of solar reactor efficiency, SUN-to-LIQUID II will develop a high-accuracy flux measurement system that might guarantee a low level of uncertainty in the measurement of power inlet.