Advertisement

Low-Cost Solar Selective Absorbers by Electrodepositing Technique

  • Kamil M. Yousif
  • Sayran A. Abdulgafar
Chapter
Part of the Innovative Renewable Energy book series (INREE)

Abstract

In recent years interest has increased in the production and characterization of high-thermal-stability selective surfaces that have high solar absorptance (α) and low thermal emittance (ε). Different techniques such as thermal evaporation, spray pyrolysis, chemical techniques, ion-beam sputtering, etc. have been utilized to prepare several coatings of high α and low ε values. Solar energy is inexhaustible source of energy. The power from the sun intercepted by the earth is larger than the present consumption rate on the earth. This makes it one of the most promising of the unconventional energy sources. The objective of this research is to study solar selective coatings used in solar thermal collectors, i.e., black nickel coatings using copper substrates. In this work, we investigated the preparation and characterization of black nickel (BN) coatings used in solar thermal collectors. The overall goal has been to obtain efficient absorbers by using low-cost techniques. Reflectance measurements were used to evaluate both (α) and (ε) of the coatings. The measurements of total or diffuse reflectance of samples were performed with instruments equipped with integrating spheres. Electrodeposited (ED) Ni-black on Cu substrate has a moderate selectivity (α/ε = 2.63, when α = 0.95). The durability tests were carried out in the form of elevated temperature exposure in air (250 °C), temperature cycling (30–100 °C), and humidity tests (up to 90% RH). The coatings have been re-characterized after ageing tests, using spectrophotometry and other techniques, such as X-ray techniques. Durability testing of the ED Ni-black coatings indicates that they are sensitive to humidity testing (HMT), and significant changes in (α) or (ε) also occurred during thermal ageing. ED of BN on Cu substrate showed degradation toward the durability tests. In this research, low-cost solar selective absorbers (ED of BN on Cu) have been obtained. And we tried to get rid of some structures or materials which are harm to the environment, that is, car batteries, by using lead sheets [from recycled car battery] as an anode during ED of BN coating.

Keywords

Solar selective coatings Solar collectors Selectivity Durability tests 

References

  1. 1.
    Seraphin BO, Hahn RE (1978) Physics of thin films, vol vol. 10. Academic, New York, pp 1–69Google Scholar
  2. 2.
    Orel ZC (1999) Sol Energy Mater Sol Cells 57:291CrossRefGoogle Scholar
  3. 3.
    Wäckelgård E, Hultmark G (1998) Sol Mater Sol Cells 54:165CrossRefGoogle Scholar
  4. 4.
    Tabor H (1978) Status report on selective surfaces. In: Sun-mankind’s future source of energy, vol vol. 2. Pergamon Press, Elmsford, NY, pp 829–836CrossRefGoogle Scholar
  5. 5.
    Patel SN, Inal OT, Singh AJ, Scherer A (1985) Optimization and thermal degradable study of black Ni solar coll. coatings. Sol Energy Mater 11:381CrossRefGoogle Scholar
  6. 6.
    Madhusudana M, Sehgal HK (1982) Appl Energy 10:65CrossRefGoogle Scholar
  7. 7.
    Yousif KM (2007) Modification of electrodeposited black nickel selective coating for solar photo thermal conversion. JAAUBAS 4:228–236Google Scholar
  8. 8.
    Wang X, Li H, Yu X, Shi X, Liu J (2007) High-performance solution-processed plasmonic Ni nanochain-Al2O3 selective solar thermal absorbers. Applied Phys Lett 101:20Google Scholar
  9. 9.
    Zhenxiang Li, Zhao J, Ren L (2012) Aqueous solution-chemical derived Ni–Al2O3 solar selector absorption coatings. Sol Energy Mater Sol Cells 105:90Google Scholar
  10. 10.
    Lizama-Tzec FI, Macías JD, Estrella-Gutiérrez MA, Cahue-López AC, Arés O, Coss R de, Alvarado-Gil JJ, Oskam G (2015) Electrodeposition and characterization of nanostructured black nickel selective absorber coatings for solar–thermal energy conversion. J Mater Sci Mater Electron 26(8):5553–5561Google Scholar
  11. 11.
    Estrella-Gutiérrez MA, Lizama-Tzec FI, Arés O, Oskam G (2016) Influence of solar absorber coating based on BN electrode onto Cu. Electro Acta 213(20):460Google Scholar
  12. 12.
    El- Nady J, Kashyout AB, Ebrahim S, Soliman MB (2016) Nanoparticles Ni electroplating and black paint for solar collector applications. Alex Eng J 55(2):723CrossRefGoogle Scholar
  13. 13.
    Danial AS, Awad MI, Al-Odail FA (2017) Effect of different synthesis routes on the electrocatal. properties of NiOX nanoparticles. J Mol Liq 225:919CrossRefGoogle Scholar
  14. 14.
    Labsphere (2017) Technical guide, integrating sphere theory & applications. Labsphere Inc, North Sutton, NH. www.labsphere.comGoogle Scholar
  15. 15.
    Whitehouse D (2012) Surfaces and their measurement. Butterworth-Heinemann, Boston. ISBN 978-0080972015Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Kamil M. Yousif
    • 1
  • Sayran A. Abdulgafar
    • 2
  1. 1.Faculty of Science, Department of Environment ScienceZakho UniversityZakhoIraq
  2. 2.Faculty of Science, Department of PhysicsDohuk UniversityDohukIraq

Personalised recommendations