نوع مقاله : مقاله پژوهشی
تازه های تحقیق
عنوان مقاله English
نویسندگان English
Double swirl burners are an advanced type of burner designed to improve combustion and increase flame stability. The burner used consists of two separate swirling air streams. In this paper, various experiments were performed on the burner. Subsequently, the results obtained from the experiments were repeated with a combustion chamber installed around the burner to analyze and investigate the changes that occurred. Key variables include the equivalence ratio, inner swirl number, outer swirl number, and flow split ratio.
Double swirl burners are a type of advanced burner designed to improve combustion and increase flame stability and efficiency. The burner used in current consists of two separate swirling air streams. Various experiments have been performed and the results obtained from the tests have been repeated in the case of installing a chamber on the burner to analyze and examine the changes that have occurred. The basic variables include the equivalence ratio, inner swirl number, outer swirl number and flow split ratio. Tests conducted in both cases without a chamber and with a chamber indicate that adding a chamber generally limits the stability of the burner and in some cases results in a longer flame length. In addition, the results show that adding a chamber in some places causes the lean blowout limit to extend to lower equivalence ratios. It is also shown that in certain conditions, increasing the outer flow split ratio leads to a shorter flame length and an increase in flame width; both effects were simultaneously observed in the flame area as well. In addition, at the points that were performed for both configuration (with and without the chamber), with a certain confinement ratio, the flame liftoff height did not change.
کلیدواژهها English
