Collector Subsystem Official Performance Test: Test Procedure 118. Revision A

摘要

The first objective is to demonstrate the heliostat beam quality by taking beam quality data with the BCS. Beam quality data, shall be taken at two different times per day for each heliostat. Beam quality data for a group of ten heliostats at a given time will be combined as follows to yield a composite beam shape for the group: the centroids of each beam shape will be superimposed by the BCS; the flux values at each BCS grid point will be numerically summed; and the summed fluxes at each point will be divided by ten. The composite beam shape for each group of heliostats will be assumed to represent the beam shape of a single heliostat in the group and will be analyzed using HELIOS to ASSESS compliance with the beam quality specification over the operating temperature range. The second objective is to demonstrate that the beam centroid tracking error for each heliostat is within the tracking error specification. Beam centroid tracking data shall be acquired using BCS. Tracking error data for each heliostat will be compared with the specification value of the RMS error. (ERA citation 09:028124)