Characterizations of flat flame burner for domestic applications

This paper investigates a clean and highly efficient domestic stove burner applied as a flat flame burner for cooking and water heating. The feasibility of the flat flame burner is experimentally verified by demonstrating that the flame stabilizer is composed of a porous metal medium and by comparison with a typical Bunsen flame burner. The flame appearance, temperature distribution, relative thermal efficiency and pollution emissions in terms of EICO and EINOx were measured and analyzed. The results show that the operating range, turndown ratio, and pollution emissions of flat flame burners are superior to those of traditional Bunsen flame burners. Furthermore, in contrast to traditional Bunsen flame burners, the efficiency and pollution emissions of flat flame burners are not strongly affected by the distance between the heat exchanger and the burner exit. For domestic stove applications in particular, where different sized pots and pans are used, the efficiency and pollution emissions can be well controlled with a flat flame burner.