Heliostat field aiming strategy based on deterministic optimization: An experimental validation

Alberto Sánchez-González, Marios Kontopyrgos, Kypros Milidonis and Marios C. Georgiou

Renewable Energy, 2024, vol. 236, issue C

Abstract: In Solar Power Tower plants, the aiming strategy plays a key role in the performance and interaction between heliostat field and receiver. This work presents an aiming strategy based on a deterministic optimization that maximizes the flux uniformity and minimizes the spillage losses. The algorithm can be fed either by a flux mapping model or by the synthesis – superposition – of experimental images. Both approaches are experimentally tested at PROTEAS research facility, aiming 16 heliostats at a flat Lambertian target. In the comparison between experimental and computed flux maps, the cross-correlation coefficient exceeds 97%. The spillage loss factors are underestimated by the computations: 9.2 percentage points by the model-based and 6.7 points by the synthesis-based approach.

Keywords: Concentrating solar power; Aim point; Heliostat field; Uniform flux distribution; Spillage (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:236:y:2024:i:c:s0960148124014745

DOI: 10.1016/j.renene.2024.121406

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