article · Energy Sources Part A Recovery Utilization and Environmental Effects
An experimental study investigated the thermal performance of a stepped solar box type cooker (SSBC) by applying energetic silicon dioxide (SiO2) and titanium dioxide (TiO2) nanoparticles. These nanoparticles were coated onto the cooker's bar plate at various ratios, ranging from 5% to 25%, to enhance solar ray absorption. The research found that an optimised ratio of 15% SiO2/TiO2 nanoparticles significantly increased the average absorption bar plate temperature. This improvement led to an overall thermal efficiency increase of 31.42% for the system. The coated SiO2/TiO2 nanoparticles demonstrated improved performance compared to cookers using single nanoparticles (SiO2, TiO2) or conventional designs, with specific performance increases observed across all tested ratios.
Improving the efficiency of solar cookers can provide a sustainable and cost-effective cooking solution, particularly in regions with abundant sunlight. Enhanced thermal performance means faster cooking times and more effective use of solar energy, reducing reliance on traditional fuels and their associated environmental and health impacts.
This research presents an early-stage development for improving the thermal efficiency of solar box type cookers. The findings could lead to the development of more efficient solar cooking appliances for domestic or community use, potentially benefiting households and organisations seeking sustainable cooking solutions. Further applied research and development would be needed to transition this experimental finding into a market-ready product.
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The current study presents an experimental analysis of a stepped solar box type cooker (SSBC) using energetic SiO2/TiO2 nanoparticles focused on the different ratios of 5% to 25% with coating on the bar plate to enhance thermal performance. The important parameters of the system have been enhanced due to better absorption of solar rays. It depends on bar plate performances because it increases the temperature and reduces the cooking time. The experimental study was depicted the solar box cooker’s system, which uses a modified system with improved temperature. The inner moist air temperature generated through the bar plate is associated with the absorption frequency, which increased the furious SiO2/TiO2 nanoparticles’ temperature. Optimized energetic SiO2/TiO2 nanoparticles increased by the average absorption bar plate temperature, which is focused on the ratio of 15% and improved overall thermal efficiency of 31.42% of the system. Compared to other doping nanoparticles used for solar thermal applications to show the increases in the performances. The coated SiO2/TiO2 nanoparticles of SSBC have been increased of 31.77%, 37.69%, 49.21%, 36.99% and 34.66% for 5%,10%,15%,20%,25% individually and compared to that of single nanoparticles (SiO2, TiO2), convention cooker.
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DOI: 10.1080/15567036.2020.1859018
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