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In this work, flame characteristics of combustion of liquid hydrocarbons sprayed by a superheated water vapor in the burner device are investigated. Diesel fuel has been chosen as an example of liquid fuel. Flame characteristics like temperature distribution, effective emissivity are measured in a wide range of system parameters (fuel and steam flow rates, steam temperature) by using a FLIR JADE J530SB thermal imaging camera and a platinum-rhodium-platinum-rhodium type B thermocouple. It has been obtained that at a steam flow rate increasing the flame temperature decreases. Also, the systems influence on the effective emissivity of the flame. The thermal imaging measurements are in a good agreement with the thermocouple data. The results can be used for numerical simulation of the combustion process under study.

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