Operation examples of emission control systems
Abstract This chapter introduces the laboratory-scale, pilot-scale, and full-scale operations examples of emission aftertreatment systems for marine diesel engines. First, the laboratory- and pilot-scale examples of the selective catalytic reduction NOx-removal method are explained. Following this is an explanation of several techniques that have been proposed to enhance the conversion efficiency or to implement the technology at low temperature. Furthermore, the SOx scrubber system is described, as well as its application to actual ships, and the explanation is followed by a review of the development of the marine diesel engine electrostatic precipitator (EP). Similarly, fundamentals and applications of computational fluid dynamics for two-phase flows in EPs are described as design methodologies, along with laboratory- and pilot-scale plasma particulate matter decompositions. An explanation of plasma NOx reduction follows, based on laboratory- and pilot-scale experiments. Finally, the exhaust gas recirculation method is described using a laboratory- and pilot-scale example.