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Optimisation of metal sputtered and electroplated substrates for solar selective coatings

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  • Farooq, M.
  • Raja, Iftikhar A.

Abstract

This study describes the performance of selective coatings to have maximum solar absorptance and minimum thermal emittance, in relation to substrate preparation. Aluminium and copper substrates, covered with sputtered or electroplated metal base layer, have been used to see the influence of different types of substrates for solar selective coatings. The effect of the base layer material, thickness, deposition process and deposition condition, on the optical performance of selective coatings has been analysed. Nickel was electroplated and nickel and vanadium were sputtered as a base layer on the Al and Cu substrates. A comparison of plated and sputtered nickel substrates for Ni:SiO2 and V:Al2O3 composite solar selective coatings is presented. Theoretical results using computer simulation for solar selective composites on various substrates, and the effect of the base layer thickness on these substrates are compared with experimental results. The effects of the base layer thickness for cobalt and tungsten are also included. The sputtered base layers selective coatings produced higher absorptance along with higher emittance and electroplated base layer coatings resulted in comparatively lower absorptance and lower emittance. Hundred nanometre metal sputtered base layer is optimised for solar selective coatings.

Suggested Citation

  • Farooq, M. & Raja, Iftikhar A., 2008. "Optimisation of metal sputtered and electroplated substrates for solar selective coatings," Renewable Energy, Elsevier, vol. 33(6), pages 1275-1285.
    • Handle: RePEc:eee:renene:v:33:y:2008:i:6:p:1275-1285
    DOI: 10.1016/j.renene.2007.06.025
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    References listed on IDEAS

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    1. Yousif, K.M. & Smith, B.E. & Jeynes, C., 1994. "Study of durability of (molybdenum-copper)-black coatings in relation to their use as solar selective absorbers," Renewable Energy, Elsevier, vol. 5(1), pages 324-329.
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    Cited by:

    1. Muñoz, Javier & Abánades, Alberto, 2011. "Analysis of internal helically finned tubes for parabolic trough design by CFD tools," Applied Energy, Elsevier, vol. 88(11), pages 4139-4149.
    2. Abdulhamed, Ali Jaber & Adam, Nor Mariah & Ab-Kadir, Mohd Zainal Abidin & Hairuddin, Abdul Aziz, 2018. "Review of solar parabolic-trough collector geometrical and thermal analyses, performance, and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 822-831.
    3. Jebasingh, V.K. & Herbert, G.M. Joselin, 2016. "A review of solar parabolic trough collector," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 1085-1091.
    4. Abbas, R. & Muñoz, J. & Martínez-Val, J.M., 2012. "Steady-state thermal analysis of an innovative receiver for linear Fresnel reflectors," Applied Energy, Elsevier, vol. 92(C), pages 503-515.
    5. F. Bensebaa & D. Di Domenicantonio & L. Scoles & D. Kingston & P. Mercier & G. Marshall, 2016. "Alternative coating technologies for metal–ceramic nanocomposite films: potential application for solar thermal absorber," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 11(3), pages 370-374.
    6. Song, Xingwang & Dong, Guobo & Gao, Fangyuan & Diao, Xungang & Zheng, Liqing & Zhou, Fuyun, 2014. "A numerical study of parabolic trough receiver with nonuniform heat flux and helical screw-tape inserts," Energy, Elsevier, vol. 77(C), pages 771-782.
    7. Atkinson, Carol & Sansom, Chris L. & Almond, Heather J. & Shaw, Chris P., 2015. "Coatings for concentrating solar systems – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 45(C), pages 113-122.
    8. Boubault, Antoine & Ho, Clifford K. & Hall, Aaron & Lambert, Timothy N. & Ambrosini, Andrea, 2016. "Levelized cost of energy (LCOE) metric to characterize solar absorber coatings for the CSP industry," Renewable Energy, Elsevier, vol. 85(C), pages 472-483.

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