Abstract
In a series of three papers we report on laboratory experiments of waste water combustion with dissolved N- and S-compounds sprayed into a confined swirl flame. The aims are to measure the NO formation under various operating conditions and to study the interaction of NO and SO 2 formation in flames with water injection. In the present paper the experimental equipment, the sampling systems, and the diagnostics are described. Two types of burners, which mainly differ in the method of waste water injection, were used. The spray characteristics of the nozzles and the droplet evaporation process could be measured. The temperature and the axial flow velocity distribution together with CO and unburned hydrocarbon concentration measurement characterizes the global flow and combustion process. Thermal NO concentrations measured in the two types of burners under pure water injection conditions serve as a reference level for the subsequent N-doped water results.
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