High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications

Gray, M. H.; Tirawat, R.; Kessinger, K. A.; Ndione, P. F.

doi:10.1016/j.egypro.2015.03.046

Title: High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications

Abstract

The roadmap to next-generation concentrating solar power plants anticipates a progression to central towers with operating temperatures in excess of 650°C. These higher temperatures are required to drive higher power-cycle efficiencies, resulting in lower cost energy. However, these conditions also place a greater burden on the materials making up the receiver. Any novel absorber material developed for next-generation receivers must be stable in air, cost effective, and survive thousands of heating and cooling cycles. The collection efficiency of a power tower plant can be increased if the energy absorbed by the receiver is maximized while the heat loss from the receiver to the environment is minimized. Thermal radiation losses can be significant (>7% annual energy loss) with receivers at temperatures above 650°C. We present progress toward highly efficient and durable solar selective absorbers (SSAs) intended for operating temperatures from 650°C to 1000°C. Selective efficiency (η_sel) is defined as the energy retained by the absorber, accounting for both absorptance and emittance, relative to the energy incident on the surface. The low emittance layers of multilayer SSAs are binary compounds of refractory metals whose material properties indicate that coatings formed of these materials should be oxidation resistant in air to 800-1200°C. Onmore »« less

Authors:: Gray, M. H.; Tirawat, R.; Kessinger, K. A.; Ndione, P. F.

Publication Date:: Fri May 01 00:00:00 EDT 2015

Research Org.:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

OSTI Identifier:: 1898947

Alternate Identifier(s):: OSTI ID: 1215027

Report Number(s):: NREL/JA-5500-62935
Journal ID: ISSN 1876-6102; S1876610215003525; PII: S1876610215003525

Grant/Contract Number:: 25833; AC36-08GO28308; AR0670-4918

Resource Type:: Published Article

Journal Name:: Energy Procedia (Online)

Additional Journal Information:: Journal Name: Energy Procedia (Online) Journal Volume: 69 Journal Issue: C; Journal ID: ISSN 1876-6102

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 14 SOLAR ENERGY; 47 OTHER INSTRUMENTATION; concentrating solar power (CSP); CSP; high temperatures; coatings

Citation Formats


                    Gray, M. H., Tirawat, R., Kessinger, K. A., and Ndione, P. F. High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications.  Netherlands: N. p., 2015. 
Web.  doi:10.1016/j.egypro.2015.03.046.

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                    Gray, M. H., Tirawat, R., Kessinger, K. A., & Ndione, P. F. High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications.  Netherlands.  https://doi.org/10.1016/j.egypro.2015.03.046

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                    Gray, M. H., Tirawat, R., Kessinger, K. A., and Ndione, P. F. Fri .  
"High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications".  Netherlands.  https://doi.org/10.1016/j.egypro.2015.03.046.

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@article{osti_1898947,

  title        = {High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications},

  author       = {Gray, M. H. and Tirawat, R. and Kessinger, K. A. and Ndione, P. F.},

  abstractNote = {The roadmap to next-generation concentrating solar power plants anticipates a progression to central towers with operating temperatures in excess of 650°C. These higher temperatures are required to drive higher power-cycle efficiencies, resulting in lower cost energy. However, these conditions also place a greater burden on the materials making up the receiver. Any novel absorber material developed for next-generation receivers must be stable in air, cost effective, and survive thousands of heating and cooling cycles. The collection efficiency of a power tower plant can be increased if the energy absorbed by the receiver is maximized while the heat loss from the receiver to the environment is minimized. Thermal radiation losses can be significant (>7% annual energy loss) with receivers at temperatures above 650°C. We present progress toward highly efficient and durable solar selective absorbers (SSAs) intended for operating temperatures from 650°C to 1000°C. Selective efficiency (ηsel) is defined as the energy retained by the absorber, accounting for both absorptance and emittance, relative to the energy incident on the surface. The low emittance layers of multilayer SSAs are binary compounds of refractory metals whose material properties indicate that coatings formed of these materials should be oxidation resistant in air to 800-1200°C. On this basis, we initially developed a solar selective coating for parabolic troughs. This development has been successfully extended to meet the absorptance and emittance objectives for the more demanding, high temperature regime. We show advancement in coating materials, processing and designs resulting in the initial attainment of target efficiencies ηsel > 0.91 for proposed tower conditions. Additionally, spectral measurements show that these coatings continue to perform at targeted levels after cycling to temperatures of 1000°C in environments of nitrogen and forming gas.},

  doi          = {10.1016/j.egypro.2015.03.046},

  journal      = {Energy Procedia (Online)},

  number       = C,

  volume       = 69,

  place        = {Netherlands},

  year         = {Fri May 01 00:00:00 EDT 2015},

  month        = {Fri May 01 00:00:00 EDT 2015}

}

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Works referenced in this record:

Design of wide-angle solar-selective absorbers using aperiodic metal-dielectric stacks
journal, January 2009

Sergeant, Nicholas P.; Pincon, Olivier; Agrawal, Mukul
Optics Express, Vol. 17, Issue 25, p. 22800-22812
DOI: 10.1364/OE.17.022800

Progress in Development of High-Temperature Solar-Selective Coating
conference, August 2005

Kennedy, C. E.; Price, H.
ASME 2005 International Solar Energy Conference, p. 749-755
DOI: 10.1115/ISEC2005-76039

A High-temperature, High-efficiency Solar Thermoelectric Generator Prototype
journal, January 2014

Olsen, M. L.; Warren, E. L.; Parilla, P. A.
Energy Procedia, Vol. 49
DOI: 10.1016/j.egypro.2014.03.155

Characterization of Pyromark 2500 for High-Temperature Solar Receivers
conference, July 2013

Ho, Clifford K.; Mahoney, A. Roderick; Ambrosini, Andrea
ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology, ASME 2012 6th International Conference on Energy Sustainability, Parts A and B
DOI: 10.1115/ES2012-91374

Commercialization of High-Temperature Solar Selective Coating: Cooperative Research and Development Final Report, CRADA Number CRD-08-300
report, January 2014

Gray, Matthew H.
DOI: 10.2172/1121487

The structure of reactively sputtered metal carbide and metal silicide solar selective absorbers
journal, September 1980

Ritchie, I. T.
Thin Solid Films, Vol. 72, Issue 1
DOI: 10.1016/0040-6090(80)90559-3

Levelized Cost of Coating (LCOC) for selective absorber materials
report, August 2014

Ho, Clifford K.; Pacheco, James E.
DOI: 10.2172/1096256

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Similar Records

Title: High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications

Abstract

Citation Formats

Design of wide-angle solar-selective absorbers using aperiodic metal-dielectric stacks journal, January 2009

Progress in Development of High-Temperature Solar-Selective Coating conference, August 2005

A High-temperature, High-efficiency Solar Thermoelectric Generator Prototype journal, January 2014

Characterization of Pyromark 2500 for High-Temperature Solar Receivers conference, July 2013

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The structure of reactively sputtered metal carbide and metal silicide solar selective absorbers journal, September 1980

Levelized Cost of Coating (LCOC) for selective absorber materials report, August 2014

Design of wide-angle solar-selective absorbers using aperiodic metal-dielectric stacks
journal, January 2009

Progress in Development of High-Temperature Solar-Selective Coating
conference, August 2005

A High-temperature, High-efficiency Solar Thermoelectric Generator Prototype
journal, January 2014

Characterization of Pyromark 2500 for High-Temperature Solar Receivers
conference, July 2013

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report, January 2014

The structure of reactively sputtered metal carbide and metal silicide solar selective absorbers
journal, September 1980

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report, August 2014