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Modelling Soot Formation in a DISI Engine by Collings N. is a nonfiction available to read on EtoBox.

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University of Cambridge, Department of Chemical Engineering, 2010. — 19 p. Abstract In this work, the formation of soot in a Direct Injection Spark Ignition (DISI) engine is simulated using the Stochastic Reactor Model (SRM) engine code. Volume change, convective heat transfer, turbulent mixing, direct injection and flame propagation are accounted for. In order to simulate flame propagation, the cylinder is divided into an unburned, entrained and burned zone, with the rate of entrainment being governed by empirical equations but combustion modeled with chemical kinet ics. The model contains a detailed chemical mechanism as well as a highly detailed soot formation model, however computation times are relatively short. The soot model provides information on the morphology and chemical composition of soot aggregates along with bulk quantities, including soot mass, number density, volume fraction and surface area. The model is first calibrated by simulating experimental data from a Gasoline Direct Injection (GDI) Spark Ignition (SI) engine. The model is then used to simulate experimental data from the literature, where the numbers, sizes and derived mass particulate emissions from a 1

Who reads Modelling Soot Formation in a DISI Engine?

Author

Collings N.

Language

EN

Category

nonfiction

Subjects

Technology, Transport, Stem