Thermal Response of Nano-Enhanced Heat Transfer Media and their Contribution to the Performance of a Novel Hemispherical-Shaped Solar Greenhouse
نویسندگان
1 Department of Physics and Research centre, Nesamony Memorial Christian College, Marthandam, Kanyakumari, P. O. Box:629 165, Tamil Nadu, India.
2 Research scholar with Registration No: 241130613018, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamil Nadu, India.
3 Department of Physics and Research centre, Nesamony Memorial Christian College, Marthandam, Kanyakumari, P. O. Box:629 165, Tamil Nadu, India.
doi
10.30501/jree.2026.517490.2356چکیده
The present study focuses on enhancing the thermal performance of a solar greenhouse through the utilization of nano-coated and metal-alloy-based heat transfer media. As conventional heat transfer media exhibit relatively lower heat absorption, thermal distribution, and energy utilization, nano-coated galvanized iron, zinc–iron, and zinc–aluminum alloy substrates were developed, optimized, and employed as heat transfer media in a hemispherical solar greenhouse. Experimental investigations of these nano-coated substrates revealed that maximum surface temperatures of 70.3°C, 72.4°C, and 71.5°C, respectively, with corresponding coating efficiencies of 77.8%, 81.1%, and 84.5%, were obtained. Experimental investigations of the novel hemispherical-shaped greenhouse integrated with these nano-coated heat transfer media revealed that the overall thermal performance could be improved by approximately 20%, confirming the superior heat absorption, heat transfer, and heat retention capabilities of nano-enhanced heat transfer media. These research findings highlight the potential utilization of nano-coated metal alloys in solar greenhouses for improved thermal management and heating applications.
