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two years master studies

high level of technical studies

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HAN
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TU Chemnitz
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Advanced Powertrains
Design of Vehicles
Alternative Powertrains
Modelisation and Computation

Eight specialisations
offered in the second year of study

Vehicle Dynamics and Intelligent Transport Systems
Internal Combustion Engines
Powertrains
Engines and Fuels

Introduction » Study program » Second Year » CTU in Prague » Theory of ICE and Simulation

Theory of ICE and Simulation

Type	Compulsory
Semester	winter
Contact hours	(62) 4 + 1
Number of credits	5
Type of termination	Assessment + Exam
Form	Lectures + exercises
Lecturers	Doc. Ing. Oldřich Vítek, Ph.D.

Anotation

TARGET
Theoretical description of internal combustion engine (ICE) is presented - description of important physical phenomena including their mathematical models.

CONTENT

Basic conservation laws - mass, momentum and energy.
Basics of ICE combustion - laminar/turbulent flame, physical/chemical induction time.
Application of thermodynamic laws to combustion case - 1st law of thermodynamics, "chemical" enthalpy and lower heating value of fuel, adiabatic flame temperature. Basics of combustion chemistry - equilibrium, kinetics.
Chained chemical reactions, chemical mechanism of hydrogen/hydrocarbon, introduction to pollutant production in ICE.
Combustion in ICE - time evolution (rate of heat release), different combustion systems (SI, CI, HCCI, CAI, PCI, etc).
In-cylinder turbulence and its influence on in-cylinder transport processes.
SI engine combustion - rate of heat release (ROHR), turbulent flame structure, influence of turbulence, thermodynamic analysis (single/multi-zone model), Tabaczynski model, mixture ignition, influence of ROHR on ICE thermodynamic cycle (including cyclic variations), incorrect combustion modes (knocking, incomplete combustion, etc.), limits of stable ICE operation.
CI engine combustion - high-pressure fuel injection, combustible mixture formation, fuel jet time evolution, fuel drops (size distribution, SMD, time decay, evaporation), fuel jet interaction with walls and with in-cylinder large-scale flow strucutre(s), ROHR, influence on ICE thermodynamic cycle.
Combustion chamber geometry shape - SI/CI engines, influence on in-cylinder flow structure.
Homogeneous combustion (HCCI), CAI, etc. - general properties, advantages/disadvantages, simplified description.
Pollutant production in ICE - pollutant formation of general point of view, specifics of different combustion systems (SI, CI, etc.), NOx formation in SI engine (Zeldovich model), CO formation, unburnt hydrocarbons formation, estimate of exhaust gas composition.
Energy fluxes in ICE - heat transfer (Woschni, Eichelberg), detailed thermodynamic analysis, warm-up of exhaust manifold.
Mechanical losses in ICE - mechanical efficiency, simplified models.

Study materials

Keywood, J.B.: Internal Combustion Engine Fundamentals. McGraw-Hill, London, England. 1988. ISBN 0-07-028637-X.
Macek, J. - Suk, B.: Spalovací motory I. Skripta ČVUT.