Development of Compact Plasma Sprayed Coatings for High Temperature Solar Tower Receivers
DOI:
https://doi.org/10.52825/solarpaces.v1i.606Keywords:
Receiver, Absorptivity, Coatings, Thermal Spray, Concentrated Solar PowerAbstract
The current developments in concentrating solar power are focused in the third generation. Increase the working temperature of the plants is the main objective for this new generation. For this new condition, alternative materials for the receivers must be explored. In this work, a nickel alloy coating has been fabricated using a compact plasma spray system to be used on the receiver. This thermal spray system could be used for in-situ maintenance and overhaul as it is portable. Then the coatings have been exposed at high temperature of 800 ºC, as expected in the third generation, during different exposure times. The evolution of the coating solar absorptivity and adherence have been studied over the selected exposure times. A maximum value of solar absorptivity 0.93 was reported for the longer exposure time studied. The adherence increment was remarkable reaching a value of about 57 MPa. These results show that these coatings could represent a durable alternative while the solar absorptivity maintains high values.
Downloads
References
IRENA, Renewable capacity statistics 2021 International Renewable Energy Agency (IRENA). Abu Dhabi, 2021.
Y. L. He et al., “Perspective of concentrating solar power,” Energy, vol. 198, p. 117373, 2020, doi: https://doi.org/10.1016/j.energy.2020.117373.
A. Boubault, C. K. Ho, A. Hall, T. N. Lambert, and A. Ambrosini, “Durability of solar absorber coatings and their cost-effectiveness,” Sol. Energy Mater. Sol. Cells, vol. 166, no. March 2017, pp. 176–184, 2017, doi: https://doi.org/10.1016/j.solmat.2017.03.010.
A. Ambrosini, A. Boubault, C. K. Ho, L. Banh, and J. R. Lewis, “Influence of application parameters on stability of Pyromark®2500 receiver coatings,” 2019, p. 30002, doi: https://doi.org/10.1063/1.5117514.
C. K. Ho, A. R. Mahoney, A. Ambrosini, M. Bencomo, A. Hall, and T. N. Lambert, “Characterization of Pyromark 2500 Paint for High-Temperature Solar Receivers,” J. Sol. Energy Eng., vol. 136, no. 1, pp. 2014–2017, 2014, doi: https://doi.org/10.1115/1.4024031.
N. Martínez, A. Rico, C. J. Múnez, C. Prieto, and P. Poza, “Improving durability of silicone-based paint coatings used in solar power plants by controlling consolidation procedures,” Sol. Energy, vol. 199, no. September 2019, pp. 585–595, 2020, doi: https://doi.org/10.1016/j.solener.2020.02.049.
C. K. Ho and B. D. Iverson, “Review of high-temperature central receiver designs for concentrating solar power,” Renew. Sustain. Energy Rev., vol. 29, pp. 835–846, 2014, doi: https://doi.org/10.1016/j.rser.2013.08.099.
F. Rubino, P. Poza, G. Pasquino, and P. Carlone, “Thermal spray processes in concentrating solar power technology,” Metals (Basel)., vol. 11, no. 9, pp. 1–30, 2021, doi: https://doi.org/10.3390/met11091377.
D. Merino-Millan, C. J. Múnez, M. Á. Garrido-Maneiro, and P. Poza, “Alternative low-power plasma-sprayed inconel 625 coatings for thermal solar receivers : Effects of high temperature exposure on adhesion and solar absorptivity,” Sol. Energy Mater. Sol. Cells, vol. 245, no. June, 2022, doi: https://doi.org/10.1016/j.solmat.2022.111839.
ASTM International, “ASTM E903-20, Standard Test Method for Solar Absorptance , Reflectance , and Transmittance of Materials Using Integrating Spheres,” vol. 03. West Conshohocken, PA, pp. 1–9, 2020, doi: https://doi.org/10.1520/E0903-20.
ASTM International, “ASTM D4541-17, Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers,” ASTM International. West Conshohocken, PA, pp. 1–16, 2017, doi: https://doi.org/10.1520/D4541-17.
M. Balat-Pichelin, J. L. Sans, E. Bêche, L. Charpentier, A. Ferrière, and S. Chomette, “Emissivity at high temperature of Ni-based superalloys for the design of solar receivers for future tower power plants,” Sol. Energy Mater. Sol. Cells, vol. 227, no. July 2020, 2021, doi: https://doi.org/10.1016/j.solmat.2021.111066.
A. M. de Sousa Malafaia, R. B. de Oliveira, L. Latu-Romain, Y. Wouters, and R. Baldan, “Isothermal oxidation of Inconel 625 superalloy at 800 and 1000 °C: Microstructure and oxide layer characterization,” Mater. Charact., vol. 161, no. October 2019, p. 110160, 2020, doi: https://doi.org/10.1016/j.matchar.2020.110160.
A. Durand, L. Peng, G. Laplanche, J. R. Morris, E. P. George, and G. Eggeler, “Interdiffusion in Cr–Fe–Co–Ni medium-entropy alloys,” Intermetallics, vol. 122, p. 106789, 2020, doi: https://doi.org/10.1016/j.intermet.2020.106789.
C. Atkinson, C. L. Sansom, H. J. Almond, and C. P. Shaw, “Coatings for concentrating solar systems - A review,” Renew. Sustain. Energy Rev., vol. 45, pp. 113–122, 2015, doi: https://doi.org/10.1016/j.rser.2015.01.015.
Published
How to Cite
Conference Proceedings Volume
Section
License
Copyright (c) 2023 David Merino-Millan, Claudio J. Múnez, Miguel Ángel Garrido-Maneiro, Pedro Poza
This work is licensed under a Creative Commons Attribution 4.0 International License.
Accepted 2023-11-18
Published 2023-12-08
Funding data
-
Comunidad de Madrid
Grant numbers S2018/EMT-4319 -
Agencia Estatal de Investigación
Grant numbers PID2020-115508RB-C22
