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Thermal Model of a Dish Stirling Cavity-Receiver

Author

Listed:
  • Rubén Gil

    (Mechanical Engineering Department, Engineering and Architecture School, University of Zaragoza, Maria de Luna s/n, Betancourt Building, 50018 Zaragoza, Spain)

  • Carlos Monné

    (Mechanical Engineering Department, Engineering and Architecture School, University of Zaragoza, Maria de Luna s/n, Betancourt Building, 50018 Zaragoza, Spain)

  • Nuria Bernal

    (Mechanical Engineering Department, Engineering and Architecture School, University of Zaragoza, Maria de Luna s/n, Betancourt Building, 50018 Zaragoza, Spain)

  • Mariano Muñoz

    (Mechanical Engineering Department, Engineering and Architecture School, University of Zaragoza, Maria de Luna s/n, Betancourt Building, 50018 Zaragoza, Spain)

  • Francisco Moreno

    (Mechanical Engineering Department, Engineering and Architecture School, University of Zaragoza, Maria de Luna s/n, Betancourt Building, 50018 Zaragoza, Spain)

Abstract

This paper presents a thermal model for a dish Stirling cavity based on the finite differences method. This model is a theoretical tool to optimize the cavity in terms of thermal efficiency. One of the main outcomes of this work is the evaluation of radiative exchange using the radiosity method; for that purpose, the view factors of all surfaces involved have been accurately calculated. Moreover, this model enables the variation of the cavity and receiver dimensions and the materials to determine the optimal cavity design. The tool has been used to study the cavity optimization regarding geometry parameters and material properties. Receiver absorptivity has been identified as the most influential property of the materials. The optimal aperture height depends on the minimum focal space.

Suggested Citation

  • Rubén Gil & Carlos Monné & Nuria Bernal & Mariano Muñoz & Francisco Moreno, 2015. "Thermal Model of a Dish Stirling Cavity-Receiver," Energies, MDPI, vol. 8(2), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:2:p:1042-1057:d:45323
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    References listed on IDEAS

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    1. Natarajan, Sendhil Kumar & Reddy, K.S. & Mallick, Tapas Kumar, 2012. "Heat loss characteristics of trapezoidal cavity receiver for solar linear concentrating system," Applied Energy, Elsevier, vol. 93(C), pages 523-531.
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    Cited by:

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    2. Yeongmin Kim & Wongee Chun & Kuan Chen, 2017. "Thermal-Flow Analysis of a Simple LTD (Low-Temperature-Differential) Heat Engine," Energies, MDPI, vol. 10(4), pages 1-16, April.
    3. Zou, Chongzhe & Zhang, Yanping & Falcoz, Quentin & Neveu, Pierre & Zhang, Cheng & Shu, Weicheng & Huang, Shuhong, 2017. "Design and optimization of a high-temperature cavity receiver for a solar energy cascade utilization system," Renewable Energy, Elsevier, vol. 103(C), pages 478-489.
    4. Garrido, Jorge & Aichmayer, Lukas & Abou-Taouk, Abdallah & Laumert, Björn, 2019. "Experimental and numerical performance analyses of Dish-Stirling cavity receivers: Radiative property study and design," Energy, Elsevier, vol. 169(C), pages 478-488.
    5. Zhang, Yanping & Xiao, Hu & Zou, Chongzhe & Falcoz, Quentin & Neveu, Pierre, 2020. "Combined optics and heat transfer numerical model of a solar conical receiver with built-in helical pipe," Energy, Elsevier, vol. 193(C).
    6. Yang Li & Binyu Xiong & Yixin Su & Jinrui Tang & Zhiwen Leng, 2019. "Particle Swarm Optimization-Based Power and Temperature Control Scheme for Grid-Connected DFIG-Based Dish-Stirling Solar-Thermal System," Energies, MDPI, vol. 12(7), pages 1-23, April.
    7. Valerio Lo Brano & Stefania Guarino & Alessandro Buscemi & Marina Bonomolo, 2022. "Development of Neural Network Prediction Models for the Energy Producibility of a Parabolic Dish: A Comparison with the Analytical Approach," Energies, MDPI, vol. 15(24), pages 1-27, December.
    8. Bataineh, Khaled, 2024. "Hybrid fuel-assisted solar-powered stirling engine for combined cooling, heating, and power systems: A review," Energy, Elsevier, vol. 300(C).
    9. Buscemi, Alessandro & Lo Brano, Valerio & Chiaruzzi, Christian & Ciulla, Giuseppina & Kalogeri, Christina, 2020. "A validated energy model of a solar dish-Stirling system considering the cleanliness of mirrors," Applied Energy, Elsevier, vol. 260(C).

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