Influence of gas burner design on heat transfer in low-power furnaces

Abstract

An experimental study showed that the influence of these factors is mutually equalized and the heat transfer in the combustion chamber does not change significantly. It was possible to establish that the nature of the heat absorption of individual elements of the combustion chamber did not change significantly in comparison with experiments with kinetic fuel combustion and distributed injection. An increase in heat removal can be obtained by no more than 5-7 % with an excess air coefficient of up to 1.5. It has been established that the use of an infrared burner provides an intensification of heat transfer processes in the furnace by 5-9 % only when operating on gas with an excess air coefficient of up to 1.25. It has been established that the maximum possible (subject to the operating conditions of the furnace) intensification of heat transfer in the studied range of geometric and operating parameters of the furnace is up to 15 %. Significantly turbulize and radically change the aerodynamics in the furnace volume allows the reverse scheme of the development of the torch and the movement of combustion products.