Notes on Measuring Concentration Ratio Distribution for a Solar Tower Using Moonlight

Autor/innen

DOI:

https://doi.org/10.52825/solarpaces.v2i.927

Schlagworte:

Concentration Ratio Distribution, Moonlight Concentration, Flux Mapping, Solar Tower, Solar Dish, Deep Learning

Abstract

The authors' original concept of indirect solar flux mapping of a heliostat field measures CRD using a compact stationary array of moonlight illuminometers on the receiver aperture and a reference moonlight illuminometer on the dual-axis moon tracker. Two sets of moonlight concentration experiments (CCD camera + white target; concentrated lunar beam passing across the linear array of illuminators) were carried out on 63 heliostats at Badaling Solar Tower Power Plant in Beijing on a full moon night in 2018. How the sun and moon shapes differ for CRD as light sources on a solar dish is investigated. Solar/lunar CRDs are similar. Another lunar flux mapping model is also presented, allowing different moon shapes to estimate the solar CRD and contribute improvements in extrapolating measured lunar CRDs to a solar tower working with the real Sun by repeated smooth-filtering. In this paper, some unknown factors, effects, and improvements are carefully considered to enhance the CRD measurement accuracy of a solar tower power plant by using moonlight concentration.

Downloads

Keine Nutzungsdaten vorhanden.

Literaturhinweise

A. Ferriere, M. Volut, A. Perez and Y. Volut, "In-situ measurement of concentrated solar flux and distribution at the aperture of a central solar receiver," AIP Conf. Proc., vol. 1734, no.1, 130007, May, 2016, doi: https://doi.org/10.1063/1.4949217.

C.K. Ho, S.S. Khalsa and D.D. Gill, "Evaluation of a new tool for heliostat field flux mapping," Proceedings of SolarPACES 2011, SAND2011-5353C, Sep., 2011, https://www.osti.gov/biblio/1140911.

C.K. Ho and S.S. Khalsa, "A photographic flux mapping method for concentrating solar collectors and receivers," J. Sol. Energy Eng., vol.134, no.4, 041004 (8 pages), Nov., 2012, doi: https://doi.org/10.1115/1.4006892.

C. Raeder, M. Offergeld, M. Roeger, A. Lademann, J. Zoeller, M. Glinka, J. Escamilla and A. Kaempgen, "Proof of concept: Real-time flux density monitoring system on external tube receivers for optimized solar field operation," ICB-REV 2022, Jan., 2023, doi: https://doi.org/10.1063/5.0148725.

"SolarPACES Technology Award 2021 for DLR Solar Research and CSP Services." Winners of the 2021 SolarPACES Awards: Technology Innovation Award: DLR Solar Research and CSP Services for their solar flux measurement system. https://www.solarpaces.org/wp-content/uploads/SolarPACES-Award-2021.pdf.

M. Guo, X. Wang, N. Wang, F. Sun, X. Zhang and Z. Wang, "Moonlight concentration experiments of Badaling solar tower power plant in Beijing," AIP Conf. Proc., vol. 2303, no.1, 050001, Dec., 2020, doi: https://doi.org/10.1063/5.0028526.

H. Wang, M. Guo and Z. Wang, "Calculation model of moonlight concentration ratio distribution for solar dish concentrator," ACTA ENERGIAE SOLARIS SINICA, vol.43, no.9, pp. 148–154, Sept., 2022, doi: https://doi.org/10.19912/j.0254-0096.tynxb.2021-0216.

M. Guo, H. Wang, Z. Wang, X. Zhang, F. Sun and N. Wang, "Model for measuring concentration ratio distribution of a dish concentrator using moonlight as a precursor for solar tower flux mapping," AIMS Energy, vol.9, no.4, pp. 727–754, Jun., 2021, https://doi.org/10.3934/energy.2021034.

F. Xu, J. Wang, M. Guo, Z. Wang, " Prediction of solar concentration flux distribution for a heliostat based on lunar concentration image and generative adversarial networks," APPLIED ARTIFICIAL INTELLIGENCE, vol.38, no.1, e2332114 (21 pages), Mar. 2024, https://doi.org/10.1080/08839514.2024.2332114.

Cover SolarPACES 2023

Downloads

Veröffentlicht

2024-08-28

Zitationsvorschlag

Guo, M., Wang, Z., Zhang, X., Wang, H., Wu, Y., & Wang, J. (2024). Notes on Measuring Concentration Ratio Distribution for a Solar Tower Using Moonlight. SolarPACES Conference Proceedings, 2. https://doi.org/10.52825/solarpaces.v2i.927

Konferenzband

Bd. 2 (2023): SolarPACES 2023, 29th International Conference on Concentrating Solar Power, Thermal, and Chemical Energy Systems

Rubrik

Measurement Systems, Devices, and Procedures

Lizenz

Copyright (c) 2024 Minghuan Guo, Zhifeng Wang, Xiliang Zhang, Hao Wang, Ying Wu, Jian Wang

Creative-Commons-Lizenz
Dieses Werk steht unter der Lizenz Creative Commons Namensnennung 4.0 International.
##plugins.generic.dates.received## 2023-10-22
##plugins.generic.dates.accepted## 2024-07-10
##plugins.generic.dates.published## 2024-08-28

Daten zur Förderung