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Experimental evaluation of the performance of new Copenhagen solar cooker configurations as a function of solar altitude angle

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  • Apaolaza-Pagoaga, Xabier
  • Carrillo-Andrés, Antonio
  • Jiménez-Navarro, Juan-Pablo
  • Rodrigues Ruivo, Celestino

Abstract

The Copenhagen cooker is a panel-type solar cooker that uses four flexible reflective panels to redirect solar radiation to a cooking vessel. Its concept design allows adjustment of the four panels to create new geometries that can adapt to the solar altitude angle. Originally, three geometrical configurations were presented by its creators. In this work, building upon these originals, new configurations are proposed to improve performances. To quantify performance improvement, experimental tests are performed. First, stagnation tests are carried out to identify the best configuration for different solar altitude angles. Then, the most promising new configurations and the original ones are tested, side-by-side, heating a water load and for different ranges of altitude angle: low (35°), medium (66°) and high (75°). Results show that performance significantly improves. Results across the entire solar altitude angle range help general users to set the most effective configuration based on their specific conditions. Last, our experimental study suggests that tests without load can be a good predictor of the behaviour of solar cookers with load. This qualitative conclusion would allow solar cookers to be tested in shorter periods for all ranges of solar altitude angle, which is of great value for general users.

Suggested Citation

  • Apaolaza-Pagoaga, Xabier & Carrillo-Andrés, Antonio & Jiménez-Navarro, Juan-Pablo & Rodrigues Ruivo, Celestino, 2024. "Experimental evaluation of the performance of new Copenhagen solar cooker configurations as a function of solar altitude angle," Renewable Energy, Elsevier, vol. 229(C).
    • Handle: RePEc:eee:renene:v:229:y:2024:i:c:s0960148124008504
    DOI: 10.1016/j.renene.2024.120782
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    References listed on IDEAS

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    1. Apaolaza-Pagoaga, Xabier & Carrillo-Andrés, Antonio & Ruivo, Celestino Rodrigues, 2021. "New approach for analysing the effect of minor and major solar cooker design changes: Influence of height trivet on the power of a funnel cooker," Renewable Energy, Elsevier, vol. 179(C), pages 2071-2085.
    2. Ruivo, Celestino Rodrigues & Coccia, Gianluca & Di Nicola, Giovanni & Carrillo-Andrés, Antonio & Apaolaza-Pagoaga, Xabier, 2022. "Standardised power of solar cookers with a linear performance curve following the Hottel-Whillier-Bliss formulation," Renewable Energy, Elsevier, vol. 200(C), pages 1202-1210.
    3. Apaolaza-Pagoaga, Xabier & Carrillo-Andrés, Antonio & Rodrigues Ruivo, Celestino, 2022. "Experimental thermal performance evaluation of different configurations of Copenhagen solar cooker," Renewable Energy, Elsevier, vol. 184(C), pages 604-618.
    4. Cuce, Erdem & Cuce, Pinar Mert, 2013. "A comprehensive review on solar cookers," Applied Energy, Elsevier, vol. 102(C), pages 1399-1421.
    5. Hosseinzadeh, Mohammad & Faezian, Ali & Mirzababaee, Seyyed Mahdi & Zamani, Hosein, 2020. "Parametric analysis and optimization of a portable evacuated tube solar cooker," Energy, Elsevier, vol. 194(C).
    6. Ruivo, Celestino Rodrigues & Carrillo-Andrés, Antonio & Apaolaza-Pagoaga, Xabier, 2021. "Experimental determination of the standardised power of a solar funnel cooker for low sun elevations," Renewable Energy, Elsevier, vol. 170(C), pages 364-374.
    7. Apaolaza-Pagoaga, Xabier & Carrillo-Andrés, Antonio & Ruivo, Celestino Rodrigues, 2022. "Experimental characterization of the thermal performance of the Haines 2 solar cooker," Energy, Elsevier, vol. 257(C).
    8. Koshti, Bhupendra & Dev, Rahul & Bharti, Ajaya & Narayan, Audhesh, 2023. "Comparative performance evaluation of modified solar cookers for subtropical climate conditions," Renewable Energy, Elsevier, vol. 209(C), pages 505-515.
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