Performance Enhancement of Domestic Gas Stoves Through Inclined Burner Cap Ports

This work investigates numerically the effects of the inclination angle of the burner cap on the thermal performance and efficiency of liquefied petroleum gas stove. The simulations carried out using ANSYS Fluent were validated using the experimental data to ensure reliability. Inclination angles were first analyzed in 15° increments, followed by finer 5° steps near the optimal range using the validated model. Results indicate that an inclination angle of 85° yields the best performance, with thermal efficiency reaching approximately 61%. At this angle, heat transfer to the cooking surface is maximized, while heat losses are minimized. On the other hand, the 90° configuration results in flame instability, uneven heat distribution, and a significant reduction in efficiency by nearly 7%. These results show that optimizing burner geometry can significantly enhance thermal efficiency, and that computational fluid dynamics analysis provides a reliable and effective tool for guiding the design of more sustainable cooking appliances.