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A 25m2 Target-Aligned Heliostat with Closed-Loop Control

  • Conference paper
Proceedings of ISES World Congress 2007 (Vol. I – Vol. V)

Abstract

A 25m2 target-aligned research heliostat with closed-loop control, with a theoretical concentration of 80 suns, has been built at CSIR in South Africa. The heliostat has four degrees of freedom: Azimuth, Elevation, Rotation and Pitch. A control system making use of a solar tracker has been developed and tested on a 1.25m2 target-aligned miniheliostat. A tracking accuracy of 3.3 milliradians was obtained. A good focal spot has been obtained with the 25m2 target-aligned research heliostat.

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References

  1. Pitz-Paal R, Dersch J and Milow B, “Roadmap Document, European Framework 6 Document ECOSTAR (European Concentrated Solar Thermal Roadmapping)”, SES6-CT-2003-502578, 2005.

    Google Scholar 

  2. Chen, Y.T., Kribus, A., Lim, B.H., Lim, C.S., Chong, K.K., Karni, J., Buck, R., Pfahl, A., Bligh, T.P., 2004. “Comparison of two sun tracking methods in the application of heliostat field”. Journal of Solar Energy Engineering 126, 1–7.

    Article  Google Scholar 

  3. Igel, E. A., and Hughes, R. L., 1979, “Optical Analysis of Solar Facility Heliostat,” Sol. Energy, 22, pp. 283–295.

    Article  Google Scholar 

  4. Ries, H., and Schubnell, M., 1990, “The Optics of a Two-Stage Solar Furnace,” Solar Energy Materials, 21, pp. 213–217.

    Article  Google Scholar 

  5. Chen, Y. T., Chong, K. K., Bligh, T. P., Chen, L. C., Jasmy, Y., Kannan, K. S., Lim, B. H., Lim, C. S., Alias, M. A., Noriah, B., Omar, A., Sahar, S., Shk. Abd. Rezan, S. A. H., Tam, C. M., and Tan, K. K., 2001, “Non Imaging Focusing Heliostat,” Solar Energy 71(3), 155–164.

    Article  Google Scholar 

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Author information

Authors and Affiliations

  1. CSIR, P.O. Box 395, Pretoria, 0001, South Africa

    Thomas Roos, Ndumiso Zwane & Eu’odia Kruger

  2. Department of Electronic Engineering, University of KwaZulu-Natal, King George V Avenue, Durban, 4041, South Africa

    Strinivasan Perumal

  3. Denel Saab Aerostructures, P.O.Box 11, Kempton Park, 1620, South Africa

    Robert Cathro

Authors
  1. Thomas Roos
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  2. Ndumiso Zwane
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  3. Eu’odia Kruger
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  4. Strinivasan Perumal
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  5. Robert Cathro
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Editor information

Editors and Affiliations

  1. Clean Energy Research Center, University of South Florida, Tampa, Florida, USA

    D. Yogi Goswami (John and Naida Ramil Professor, Co-Director) (John and Naida Ramil Professor, Co-Director)

  2. Beijing Solar Energy Research Institute, No. 3 Huayuan Road, Haidian District, Beijing, 100083, China

    Yuwen Zhao

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© 2008 Tsinghua University Press, Beijing and Springer-Verlag GmbH Berlin Heidelberg

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Roos, T., Zwane, N., Kruger, E., Perumal, S., Cathro, R. (2008). A 25m2 Target-Aligned Heliostat with Closed-Loop Control. In: Goswami, D.Y., Zhao, Y. (eds) Proceedings of ISES World Congress 2007 (Vol. I – Vol. V). Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75997-3_363

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  • DOI: https://doi.org/10.1007/978-3-540-75997-3_363

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-75996-6

  • Online ISBN: 978-3-540-75997-3

  • eBook Packages: EngineeringEngineering (R0)

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