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Absorber design for a Scheffler-Type Solar Concentrator

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  • Ruelas, José
  • Palomares, Juan
  • Pando, Gabriel

Abstract

Ray tracing software, digital close range photogrammetry and the Monte-Carlo ray-tracing method have proven to be precise and efficient measurement techniques for the assessment of the shape accuracies of solar concentrators and their components. This paper presents a new method and results for the geometric aspect of a focal image for a Scheffler-Type Solar Concentrator (STSC) using ray tracing, digital close range photogrammetry and the Monte-Carlo ray-tracing method to establish parameters that allow for the design of the most suitable absorber and receiver geometry for coupling the STSC to a Stirling engine. The results of the ray tracing software, digital close range photogrammetry and Monte-Carlo ray tracing technique in STSC are associated with a Stirling receiver. When using the method to perform simulations, we found that the most suitable solar image geometry has an elliptical shape and area of 0.0065m2 on average. Although this result is appropriate, the geometry of the receiver is modified to fit an absorber and cavity receiver to improve the heat transfer by radiation.

Suggested Citation

  • Ruelas, José & Palomares, Juan & Pando, Gabriel, 2015. "Absorber design for a Scheffler-Type Solar Concentrator," Applied Energy, Elsevier, vol. 154(C), pages 35-39.
    • Handle: RePEc:eee:appene:v:154:y:2015:i:c:p:35-39
    DOI: 10.1016/j.apenergy.2015.04.107
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    References listed on IDEAS

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    1. Cheng, Z.D. & He, Y.L. & Cui, F.Q. & Du, B.C. & Zheng, Z.J. & Xu, Y., 2014. "Comparative and sensitive analysis for parabolic trough solar collectors with a detailed Monte Carlo ray-tracing optical model," Applied Energy, Elsevier, vol. 115(C), pages 559-572.
    2. Jafrancesco, D. & Sansoni, P. & Francini, F. & Contento, G. & Cancro, C. & Privato, C. & Graditi, G. & Ferruzzi, D. & Mercatelli, L. & Sani, E. & Fontani, D., 2014. "Mirrors array for a solar furnace: Optical analysis and simulation results," Renewable Energy, Elsevier, vol. 63(C), pages 263-271.
    3. Roldán, M.I. & Monterreal, R., 2014. "Heat flux and temperature prediction on a volumetric receiver installed in a solar furnace," Applied Energy, Elsevier, vol. 120(C), pages 65-74.
    4. Ruelas, José & Velázquez, Nicolás & Cerezo, Jesús, 2013. "A mathematical model to develop a Scheffler-type solar concentrator coupled with a Stirling engine," Applied Energy, Elsevier, vol. 101(C), pages 253-260.
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    Cited by:

    1. Himanshu Agrawal & Avadhesh Yadav, 2021. "A Scheffler solar concentrator heat transfer model used in forced-circulation ice melting system at high-altitude regions," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(2), pages 1623-1645, February.
    2. Indora, Sunil & Kandpal, Tara C., 2019. "Financial appraisal of using Scheffler dish for steam based institutional solar cooking in India," Renewable Energy, Elsevier, vol. 135(C), pages 1400-1411.
    3. Indora, Sunil & Kandpal, Tara C., 2018. "Institutional cooking with solar energy: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 84(C), pages 131-154.

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