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A comprehensive ana...
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Martinez-Manuel, LeopoldoCtr Invest Opt, AC Unidad Aguascalientes, Prol Constituc 607,Fracc Reserva Loma Bonita, Aguascalientes 20200, Mexico.
(författare)
A comprehensive analysis of the optical and thermal performance of solar absorber coatings under concentrated flux conditions
- Artikel/kapitelEngelska2022
Förlag, utgivningsår, omfång ...
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Elsevier BV,2022
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:kth-315342
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-315342URI
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https://doi.org/10.1016/j.solener.2022.05.015DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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QC 20220704
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Solar Absorber Coatings (SACs) are widely used materials for improving thermal efficiencies of solar receivers. Traditionally, these SACs are investigated using heat treatments to test their optical-thermal properties; however, tests under concentrated flux conditions are still required. In this work, the thermal efficiency of different SACs is experimentally evaluated and compared. The analyzed SACs are: (1) Pyromark®2500, (2) Solkote®, (3) Thurmalox®250, (4) Comex® and (5) a new Soot from Forest Biomass (SFB) based coating. To assess the SACs performance, a High Flux Solar Simulator along with a calorimetric test bench are implemented under a well-controlled indoor environment applying two levels of concentrated irradiance of 100 ± 3 kW/m2 and 415 ± 12 kW/m2 named low and high flux level, respectively. Results show that, for a low flux level, the analyzed coatings present thermal efficiencies in a range from 91.74% to 83.24%, exhibiting a slightly close performance in most of the cases. Correspondingly, for a high flux level, the efficiencies range from 88.69% to 72.69%, with Pyromark®2500 being the most efficient in both cases. In addition, variations in the optical properties are reported for the experimental campaign with the high flux level, observing slight changes in the spectral absorptance and emittance. From these results, Pyromark presents the highest drop in solar absorptance of 1.22%, which is attributed to microcracks observed through the Scanning Electron Microscope (SEM). Thus, the presented approach can provide valuable information about the effects that concentrated flux levels can have in the optical-thermal performance of the analyzed samples.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Gonzalez-Canche, Nancy G.Ctr Invest Opt, AC Unidad Aguascalientes, Prol Constituc 607,Fracc Reserva Loma Bonita, Aguascalientes 20200, Mexico.
(författare)
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Lopez-Sosa, Luis B.Univ Intercultural Indigena Michoacan, Posgrad Ingn Sostenibil Energet, Carretera Patzcuaro Huecorio Km 3, Patzcuaro 61614, Michoacan, Mexico.
(författare)
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Carrillo, Jose G.Ctr Invest Cient Yucatan, Unidad Mat, Calle 43 130, Merida 97205, Yucatan, Mexico.
(författare)
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Wang, Wujun,1984-KTH,Kraft- och värmeteknologi(Swepub:kth)u1a9kemn
(författare)
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Pineda-Arellano, Carlos A.CONACYT Ctr Invest Opt, AC Unidad Aguascalientes, Prol Constituc 607,Fracc Reserva Loma Bonita, Aguascalientes 20200, Mexico.
(författare)
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Cervantes, FernandoCINVESTAV, Dept Fis Aplicada, Unidad Merida, Carr Antigua Progreso km 6, Merida 97310, Yucatan, Mexico.
(författare)
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Gil, Juan Jose AlvaradoCINVESTAV, Dept Fis Aplicada, Unidad Merida, Carr Antigua Progreso km 6, Merida 97310, Yucatan, Mexico.
(författare)
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Pena-Cruz, Manuel I.CONACYT Ctr Invest Opt, AC Unidad Aguascalientes, Prol Constituc 607,Fracc Reserva Loma Bonita, Aguascalientes 20200, Mexico.
(författare)
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Ctr Invest Opt, AC Unidad Aguascalientes, Prol Constituc 607,Fracc Reserva Loma Bonita, Aguascalientes 20200, Mexico.Univ Intercultural Indigena Michoacan, Posgrad Ingn Sostenibil Energet, Carretera Patzcuaro Huecorio Km 3, Patzcuaro 61614, Michoacan, Mexico.
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Solar Energy: Elsevier BV239, s. 319-3360038-092X1471-1257
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Martinez-Manuel, ...
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Gonzalez-Canche, ...
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Lopez-Sosa, Luis ...
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Carrillo, Jose G ...
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Wang, Wujun, 198 ...
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Pineda-Arellano, ...
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Cervantes, Ferna ...
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Gil, Juan Jose A ...
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Pena-Cruz, Manue ...
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