Abstract
The development of automotive emission control technology over the last five decades is one of the greatest environmental success stories of this century. Innovation of Catalytic Converter in 1970 changed the emission scenario worldwide. Later on, Diesel Particulate Filters (DPFs) were innovated in 1985 and were commercialized in the year 2000 to control diesel engine out particulates. Particle Number emission limit came under regulated mass emissions after Euro 6 standards. Diesel Particulate Filters is an effective after treatment device to control Particulate Matter and Particle Number. In this Chapter, Diesel Particulate Filters have been elucidated with reference to their function, construction, working, substrate, wash coat, catalyst and canning technology. The Design Considerations with reference to geometrical, mechanical and thermal properties are explained. Influence of various constraints and factors effecting the performance of these After-treatment devices such as air-fuel ratio, exhaust and light-off temperatures, conversion and filtration efficiencies, space velocity and poison concentrations are discussed and the impact of fuel and lubricating oil quality have also been summarized. The different DPF failure modes with their causes and regeneration methods are classified in this chapter. Factors affecting DPF performance and general performance criteria for DPF are discussed in-depth. Diesel Particulate Filter validation plan, performance testing and certification criteria is highlighted in this chapter. Catalysed-DPF, Continuously Regenerating Trap (CRT), methods of servicing of DPF and various recent research advances in DPF have been explained in detail. Different types of tests used to evaluate them have been highlighted and their optimization, performance and durability have been explained. Regeneration, innovation in fuel injection and controls, etc. have been discussed in detail.
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Vora, K.C., Gurnule, K.E., Venkatesh, S. (2020). Diesel Particulate Filter. In: Lakshminarayanan, P., Agarwal, A. (eds) Design and Development of Heavy Duty Diesel Engines. Energy, Environment, and Sustainability. Springer, Singapore. https://doi.org/10.1007/978-981-15-0970-4_8
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