Advance techniques in IC engines – selected topics

Acquiring new knowledge on role and importance of modelling dynamic processes in IC Engines. Broadening theoretical knowledge and analytical approach to thermodynamics, heat and mass transfer, fluid mechanics and fuel combustion by studying dynamic processes in IC Engine cylinder and collectors. Broadening knowledge and skills in applied computational methods and modular programming. Developing practical skills to design complex model structures and apply extensive and efficient numerical methods for studying and research of IC Engine dynamic processes.

Understanding the reality and complexity of Heat Engines working cycles. Capabilities to design complex models and sub-models structures using multidisciplinary approach. Capabilities to analyse engine processes and performance using advanced simulation models. Establishing the Cause & Effect relationship between working cycle and engine performance.

1. Selected topics in Engine exhaust and noise emission. Exhaust gas concentration modelling based on chemical reactions kinetics and chemical equilibrium. Exhaust gas emission measurement. 2. Gas flow in intake and exhaust ports and collectors. 1-D modelling of dynamic gas flow in pipes. Optimization of Intake and exhaust plenum geometry by maximizing engine volumetric efficiency. 3. Mechanical losses in IC engines. Modelling engine friction and auxillaries power consumption. Experimental determination of mechanical losses distribution. 4. In-cylinder and port flow multidimensional modelling using CFD. The characterization of gas velocity profile in engine cylinders and ports by application of advanced anemometry measurement methods.

1. Chemical reactions kinetics and chemical equilibrium - Governing Equations and numerical solution. Laboratory test - IC engine exhaust emission measurement in steady state and transient operation conditions. Project task: Combustion product composition modelling based on assumption of chemical equilibrium 2. 1-D gas dynamics – Model governing equations and structure development, analysis and demonstration using commercial software packages. Solution methods and boundary conditions (comparative analysis of constant pressure charging, Fill and Empty technique, Wave-Action Method). Project task: Development, tuning and application of 1-D model of gas flow in IC engine collectors and ports. 3. Engine mechanical losses modelling - Global models. Detailed empirical and analytic angle resolved dynamic models. Prediction of engine performance by means of combined modelling of engine combustion and mechanical losses. Laboratory task: Measurement of friction losses in engine cylinder-piston assembly and bearings. Project task: Development, tuning and application of an engine friction model. 4. In-cylinder and port flow multidimensional modelling using CFD. Gas flow in complex geometry combustion chamber - simulation example. Laboratory task: Flow field characterization in engine ports and combustion chambers. Project task: Multidimensional model of gas flow in engine plenums and ports - model development in CFD software package and its application.

Passed exam in Numerical methods and Advanced topics in IC engine simulation. Good practical knowledge of Matlab/Simulink

Mathworks Matlab/Simulink IDE (Licensed) Ricardo WAVE – 1D Engine and gas dynamics simulation software package (Licensed) LMS Imagine.Lab AMESim – Simulation software for modelling and analysis of 1-D systems (Licensed) Laboratories equipped with IC Engine testing equipment (fully equipпed IC Engine test benches) DAQ Measurement equipment (National Instruments PXI based system with LabView Development software)

Total assigned hours: 65

New material: 40
Elaboration and examples (recapitulation): 10

Auditory exercises: 0
Laboratory exercises: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 10
Test: 0
Test: 0
Final exam: 5

Activity during lectures: 0
Test/test: 0
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 70
Final exam: 30
Requirement for taking the exam (required number of points): 0

Selected books from premium publishers: Springer Verlag, Teubner, McGraw-Hill, Butterworth-Heinemann, Elsevier; Extensive selection of articles and papers: IMechE, SAE, JSAE, ASME, MTZ/ATZ, Elsevier etc.; J. Heywood: Internal Combustion Engine Fundamentals, McGraw Hill, ISBN-13: 978-1260116106, 2018; R. Pischinger , M. Klell , T. Sams: Thermodynamik der Verbrennungskraftmaschine, ISBN: 978-3-211-99277-7, Springer Verlag, 2010; G. P. Merker et. al.: Simulating combustion and pollutant formation for engine development, Springer Verlag, ISBN 10 3-540-25161-8, 13 978-3-540-25161-3, 2006