Experimental comparison of efficiency and pollution of conventional and porous burners in appropriate power for domestic use

In this paper, experimental comparison between conventional burner and porous burner in domestic purposes as stove, according to Iranian National Standard No. 10325 has been carried out. This comparison between the conventional burner available in the Iranian market and its equivalent porous burner is done. First, flammability of the porous silicon carbide burner was investigated. The results showed that the flame is formed when the equivalence ratio is less than 1, so the best performance equivalence ratio was around 0.7. By changing the distance between the pot and the burner and also changing the pot diameter, it was found that for a pot with 26 cm diameter and burner distance of 1 cm, porous burner efficiency increases to 55%. The comparison between the conventional burner and optimum situation porous burner showed that at the same factors like power, distance between the pot and the burner, the pot diameter, the burner diameter, measuring tools and the same method, porous burner efficiency is 1.5 times more than conventional burner. In conventional burners CO and NOX pollutant are 8-26 and 8 times more than porous burners. Due to higher efficiency and lower emissions, conventional burners can supersede porous burners for domestic purposes.