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Peer-reviewedCC BYScientific Reports

Investigation on rotating spiral baffles used in the solar air heater: an application of solar simulator

  • Yogeshkumar D. Khimsuriya1
  • Dinesh K. Patel2
  • Choon Kit Chan3
  • Chandrakant Sonawane4
4 affiliations
  1. 1Gujarat Technological University
  2. 2Mechanical Engineering Department, Government Engineering College Patan
  3. 3Faculty of Engineering and Quantity Surveying, INTI International University
  4. 4Symbiosis Centre for Nanoscience and Nanotechnology, Symbiosis International Deemed University
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Abstract

The thermal performance of a solar air heater equipped with novel rotating spiral-shaped baffles was experimentally investigated under controlled laboratory conditions using a solar simulator. The study evaluated the influence of mass flow rate and temperature rise parameter while maintaining constant geometric parameters of the baffle arrangement. The rotating spiral-shaped baffles enhanced fluid mixing and promoted effective heat transfer between the absorber plate and the flowing air. Compared with the conventional configuration, the modified absorber exhibited a significant increase in temperature gain and useful heat gain, with a maximum enhancement of 63.32%. The improved heat extraction also resulted in a notable reduction in absorber plate temperature, indicating superior thermal performance. Furthermore, the modified solar air heater achieved a maximum thermal efficiency of 61.03%, representing an improvement of approximately 63% over the conventional system. These findings demonstrate the effectiveness of rotating spiral-shaped baffles in enhancing the thermal performance of solar air heaters and highlight their potential for efficient solar thermal energy applications.

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Cite

BibTeXRIS
BibTeX
@article{khimsuriya2026investigation,
  title = {{Investigation on rotating spiral baffles used in the solar air heater: an application of solar simulator}},
  author = {Yogeshkumar D. Khimsuriya and Dinesh K. Patel and Choon Kit Chan and Chandrakant Sonawane},
  journal = {Scientific Reports},
  year = {2026},
  month = jul,
  doi = {10.1038/s41598-026-62534-y},
  url = {https://doi.org/10.1038/s41598-026-62534-y},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Investigation on rotating spiral baffles used in the solar air heater: an application of solar simulator
AU  - Yogeshkumar D. Khimsuriya
AU  - Dinesh K. Patel
AU  - Choon Kit Chan
AU  - Chandrakant Sonawane
PY  - 2026
DA  - 2026/07/01
JO  - Scientific Reports
DO  - 10.1038/s41598-026-62534-y
UR  - https://doi.org/10.1038/s41598-026-62534-y
AB  - The thermal performance of a solar air heater equipped with novel rotating spiral-shaped baffles was experimentally investigated under controlled laboratory conditions using a solar simulator. The study evaluated the influence of mass flow rate and temperature rise parameter while maintaining constant geometric parameters of the baffle arrangement. The rotating spiral-shaped baffles enhanced fluid mixing and promoted effective heat transfer between the absorber plate and the flowing air. Compared with the conventional configuration, the modified absorber exhibited a significant increase in temperature gain and useful heat gain, with a maximum enhancement of 63.32%. The improved heat extraction also resulted in a notable reduction in absorber plate temperature, indicating superior thermal performance. Furthermore, the modified solar air heater achieved a maximum thermal efficiency of 61.03%, representing an improvement of approximately 63% over the conventional system. These findings demonstrate the effectiveness of rotating spiral-shaped baffles in enhancing the thermal performance of solar air heaters and highlight their potential for efficient solar thermal energy applications.
SN  - 2045-2322
ER  -