skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Design and optimization of nanoparticle-pigmented solar selective absorber coatings for high-temperature concentrating solar thermal systems

Abstract

In this paper, we present a systematic approach for the design and optimization of nanoparticle-pigmented solar selective absorbers for operation at 750 °C. Using the scattering and absorption cross-sections calculated by Lorenz-Mie scattering theory as input, we employ a four-flux radiative transfer method to investigate the solar selectivity mechanism and optimize the optical-to-thermal conversion efficiency (η therm) as a function of the metallic nanoparticle material, the nanoparticle diameter, the volume fraction, and the coating thickness. Among the nanoparticle material candidates in this study, C54-TiSi 2 is the best option with an optimized η therm = 87.0% for a solar concentration ratio of C = 100 and η therm = 94.4% for C = 1000 at 750 °C. NiSi is also a promising candidate comparable to TiSi 2 in thermal efficiency, Experimentally, an un-optimized 200 nm-diameter TiSi 2 nanoparticle-silicone solar selective coating has already achieved η therm = 89.8% for C = 1000 at 750 °C. This performance is consistent with the theoretical model and close to the thermal efficiency of the commercial Pyromark 2500 coatings (90.1%). We also demonstrate that Ni/NiSi core-shell structures embedded in the SiO 1.5 matrix is thermally stable at 750 °C for 1000 h in air.more » Lastly, these results indicate that silicide cermet coatings are promising to achieve high optical performance and high temperature thermal stability simultaneously.« less

Authors:
 [1];  [1]; ORCiD logo [1];  [1];  [1];  [1]
  1. Dartmouth College, Hanover, NH (United States)
Publication Date:
Research Org.:
Dartmouth College, Hanover, NH (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1511165
Alternate Identifier(s):
OSTI ID: 1417521
Grant/Contract Number:  
EE0007112
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 123; Journal Issue: 3; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY

Citation Formats

Wang, Xiaoxin, Yu, Xiaobai, Fu, Sidan, Lee, Eldred, Kekalo, Katerina, and Liu, Jifeng. Design and optimization of nanoparticle-pigmented solar selective absorber coatings for high-temperature concentrating solar thermal systems. United States: N. p., 2018. Web. doi:10.1063/1.5009252.
Wang, Xiaoxin, Yu, Xiaobai, Fu, Sidan, Lee, Eldred, Kekalo, Katerina, & Liu, Jifeng. Design and optimization of nanoparticle-pigmented solar selective absorber coatings for high-temperature concentrating solar thermal systems. United States. doi:10.1063/1.5009252.
Wang, Xiaoxin, Yu, Xiaobai, Fu, Sidan, Lee, Eldred, Kekalo, Katerina, and Liu, Jifeng. Fri . "Design and optimization of nanoparticle-pigmented solar selective absorber coatings for high-temperature concentrating solar thermal systems". United States. doi:10.1063/1.5009252. https://www.osti.gov/servlets/purl/1511165.
@article{osti_1511165,
title = {Design and optimization of nanoparticle-pigmented solar selective absorber coatings for high-temperature concentrating solar thermal systems},
author = {Wang, Xiaoxin and Yu, Xiaobai and Fu, Sidan and Lee, Eldred and Kekalo, Katerina and Liu, Jifeng},
abstractNote = {In this paper, we present a systematic approach for the design and optimization of nanoparticle-pigmented solar selective absorbers for operation at 750 °C. Using the scattering and absorption cross-sections calculated by Lorenz-Mie scattering theory as input, we employ a four-flux radiative transfer method to investigate the solar selectivity mechanism and optimize the optical-to-thermal conversion efficiency (ηtherm) as a function of the metallic nanoparticle material, the nanoparticle diameter, the volume fraction, and the coating thickness. Among the nanoparticle material candidates in this study, C54-TiSi2 is the best option with an optimized ηtherm = 87.0% for a solar concentration ratio of C = 100 and ηtherm = 94.4% for C = 1000 at 750 °C. NiSi is also a promising candidate comparable to TiSi2 in thermal efficiency, Experimentally, an un-optimized 200 nm-diameter TiSi2 nanoparticle-silicone solar selective coating has already achieved ηtherm = 89.8% for C = 1000 at 750 °C. This performance is consistent with the theoretical model and close to the thermal efficiency of the commercial Pyromark 2500 coatings (90.1%). We also demonstrate that Ni/NiSi core-shell structures embedded in the SiO1.5 matrix is thermally stable at 750 °C for 1000 h in air. Lastly, these results indicate that silicide cermet coatings are promising to achieve high optical performance and high temperature thermal stability simultaneously.},
doi = {10.1063/1.5009252},
journal = {Journal of Applied Physics},
number = 3,
volume = 123,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Optical properties of metallic films for vertical-cavity optoelectronic devices
journal, January 1998

  • Rakić, Aleksandar D.; Djurišić, Aleksandra B.; Elazar, Jovan M.
  • Applied Optics, Vol. 37, Issue 22, p. 5271-5283
  • DOI: 10.1364/AO.37.005271

Resonant-cavity enhanced thermal emission
journal, August 2005

  • Celanovic, Ivan; Perreault, David; Kassakian, John
  • Physical Review B, Vol. 72, Issue 7, Article No. 075127
  • DOI: 10.1103/PhysRevB.72.075127