Durability of solar absorber coatings and their cost-effectiveness
| Autor: | Clifford K. Ho, Antoine Boubault, Aaron Christopher. Hall, Andrea Ambrosini, Timothy N. Lambert |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Cost estimate Renewable Energy Sustainability and the Environment business.industry Lanthanum strontium manganite Cost effectiveness 020209 energy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Durability Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Optics Coating chemistry 0202 electrical engineering electronic engineering information engineering engineering Figure of merit 0210 nano-technology business Cost of electricity by source Process engineering Solar power |
| Zdroj: | Solar Energy Materials and Solar Cells. 166:176-184 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2017.03.010 |
| Popis: | Solar absorber coatings are said to be “cost-effective” when significant efficiency gains are achieved with an acceptable additional cost. Here, an integrated approach to solar power technologies is used for quantifying more rigorously the cost-effectiveness of coatings in the concentrating solar power (CSP) industry. The levelized cost of electricity (LCOE) metric is used in an original way that attributes a cost-effectiveness value to any high-temperature absorber coating via a figure of merit named the LCOE gain efficiency. The LCOE gain efficiency is demonstrated on three different solar absorber coatings: Pyromark 2500, lanthanum strontium manganite oxide (LSM), and cobalt oxide (Co3O4), that coat a hypothetical 100 MWe central tower receiver. To perform the calculation of the LCOE gain efficiency, accelerated aging tests and cost estimates are performed. Depending on the coating properties, an optimal reapplication interval may be found that minimizes the LCOE of the plant, i.e., maximizes the LCOE gain efficiency. In such optimal conditions—and for this typical power tower—Pyromark 2500 paint enables a higher LCOE gain efficiency (0.182) than both LSM (0.139) and Co3O4 (0.083). The solar absorptance is by far the most influential parameter. The cost-effectiveness of Pyromark could be outperformed by a coating that would have a high initial solar absorptance (>0.95), a low initial degradation rate ( |
| Databáze: | OpenAIRE |
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