Investigating the Role of Heating Height in Gas Stove Burner Performance

This study provides a detailed analysis of the effect of heating height on thermal efficiency and heat transfer characteristics in combustion systems. Numerical simulations were performed for pots with diameters of 160 mm, 180 mm, and 200 mm at heating heights of 2 to 6 mm. The results indicate that smaller pots achieve maximum thermal efficiency at lower heating heights, while larger pots require higher heating heights to optimize their performance. More specifically, the PD160, PD180, and PD200 pots achieve maximum efficiencies of 59%, 61%, and 64% at 2 mm, 4 mm, and 6 mm, respectively. Analysis of the temperature contour shows that lower heating heights allow the flame to interact with the bottom of the pot in its hottest area, generating a more pronounced temperature gradient and better heat transfer. These results highlight the essential role of aligning pot geometry with heating conditions to improve energy utilization and boiling performance, providing guidance for stove design and cookware optimization.