Experimental Study of Kerosene Combustion Characteristics in a Jet of Superheated Steam with a Controlled Air Excess
Abstract
The use of steam injection has a notable impact on decreasing the presence of harmful elements in combustion byproducts. This method holds promise for mitigating the environmental impact of heat and electricity generation facilities, as well as transportation systems, particularly in remote areas where combustion systems are necessary. This study examines the effect of the excess air ratio in the gas generation chamber on the thermal and environmental characteristics of jet fuel combustion with superheated steam. The research was conducted using a laboratory burner apparatus that employs steam jet atomization of liquid fuel and allows for excess air ratio control in the gas generation chamber. Measurements of intermediate and final combustion product concentrations, flame temperature, and visual documentation of the combustion process were carried out. The findings indicate that optimal levels of carbon oxide and nitrogen oxides content in combustion by-products are achieved with superheated steam injection at an excess air ratio of approximately 0.2, meeting the stringent requirements of the European standard for liquid fuel burners EN 267. To maximize combustion efficiency during steam injection, a criterion for the minimum required air supply to the gas generation chamber was introduced.