Impingement Heating Characteristics of Domestic Gas Burner Flames

Heat transfer characteristics of household burner flames impinging on a flat surface have been investigated experimentally. This experimental study employed the analytical inverse heat conduction procedure (IHCP) concept for obtaining the local heat flux distribution. The heat flux distribution has been studied for various operating parameters such as firing rates, separation distance, burner-cap port diameter and equivalence ratios. The average heat flux distribution for three different burner caps has been compared at similar operating conditions. The separation distance between the burner tip and target surface has significant importance in heat transfer and stability viewpoint. Results of present experimental study revealed that the maximum heat flux values occur at separation distance corresponding to 15 mm. The firing rate has been observed to significantly influence the heat flux distribution on the impinging surface. The heat flux distribution has been found to be more uniform at higher separation distances and higher firing rates.

Automated summary

This experimental study investigated the heat transfer characteristics of household burner flames impinging on a flat surface. The study used the analytical inverse heat conduction procedure to analyze the local heat flux distribution. The results showed that the separation distance and firing rate significantly affected the heat transfer, with larger separation distances and higher firing rates resulting in a more uniform heat flux distribution.