Measurement and Interpretation of Flames Issued from a Generic Multi-Fuel Burner

Air pollution concerns have led in many industrialized countries to new legislation on atmospheric pollutant emissions. In order to meet research objectives of providing industry with methods for scaling multi-fuel burners to industrial applications, detailed measurements were conducted on natural gas, light fuel oil and heavy fuel oil flames. The successful modeling of flames requires not only implementation of the governing equations for fluid flow, but the accurate determination of the inlet conditions. Towards this end, the inlet fuel oil spray velocity/size distribution were determined under isothermal conditions using the Phase Doppler Analysis technique. The inlet velocity profile of the swirling combustion air was determined during the swirl calibration. Success of the initial predictions show the importance of careful determination of the boundary conditions required to obtain reliable predictions of the fluid dynamics in practical combustion devices.