Internal Combustion Engine Fundamentals, Engineering ...

COURSE NUMBER & COURSE TITLE: ME 500 Engine Cycle Simulation and Optimization INSTRUCTOR: DENG Kangyao, Credits: 3 FANG Junhua REQUIRED COURSE OR ELECTIVE COURSE:

Internal Combustion Engine Fundamentals, Engineering Thermodynamics, Heat Transfer , and Numerical Analysis

Language of instruction: Chinese TERMS OFFERED: spring semester

COURSE STRUCTURE/SCHEDULE: 1. Lecture 2. Discussion

PRE-REQUISITES:

ASSESSMENT TOOLS: 1. Homework, Quizzes—30% 2. One comprehensive final exam—70%

PROFESSIONAL COMPONENT: 1. Engineering Topics: Engineering Science-2credits Engineering Design-1credit

TEXTBOOK/READING LIST DE Winterbone and RJ Pearson,Theory of Engine manifold Design,professional Engineering publishing Limited,2000 COURSE DESCRIPTION: Engine Cycle Simulation is the major technology in the development of

modern internal combustion engine. The course is carried out with main content of engine cycle simulation, including simulation models and calculation methods of in-cylinder processes, intake and exhaust flow calculation models and methods, in-cylinder quasi-dimensional multizone combustion model and performance optimization methods. To meet the different requirements of engine design, emission control and electronic control, the course will introduce filling and emptying model, one-dimensional unsteady flow model and multi- zone combustion model to lay the foundation for the investigation modeling related to engine performance, and to build up the theoretical knowledge about using the commercial software. COURSE OUTCOMES [Related ME Program Outcomes in brackets] The course is intended to provide students with the following benefits: 1. To understand the classifications and applications of engine cycle simulation model 2. To grasp the major modeling and simulation methods and the influence of model parameters on engine performance 3. Familiar with the modeling of filling and emptying method and ability to build up control-oriented simulation model of internal combustion engines 4. Familiar with the essential models of engine cycle simulation and theoretical knowledge to control the calculation accuracy and calculation efficiency of engine performance, combustion and emission. [A5.1,A5.2,A5.4] RELATED ME PROGRAM OUTCOMES: A2. Engineering fundamentals A3. Analytical skills PREPARED BY:DENG Kangyao

REVISION DATE: Oct. 28, 2012

ME500 Engine Cycle Simulation and Optimization Course Syllabus COURSE INSTRUCTORS Name: DENG Kangyao Office: 34206589 Email: [email protected]

Name: FANG Junhua Office: Email: [email protected]

COURSE DESCRIPTION Engine Cycle Simulation is the major technology in the development of modern internal combustion engine. The course is carried out with main content of engine cycle simulation, including simulation models and calculation methods of in-cylinder processes, intake and exhaust flow calculation models and methods, in-cylinder quasi-dimensional multi-zone combustion model and performance optimization methods. To meet the different requirements of engine design, emission control and electronic control, the course will introduce filling and emptying model, one-dimensional unsteady flow model and multi- zone combustion model to lay the foundation for the investigation modeling related to engine performance, and to build up the theoretical knowledge about using the commercial software. The course is intended to provide students with the following benefits:

1. To understand the classifications and applications of engine cycle simulation model 2. To grasp the major modeling and simulation methods and the influence of model parameters on engine performance 3. Familiar with the modeling of filling and emptying method and ability to build up controloriented simulation model of internal combustion engines 4. Familiar with the essential models of engine cycle simulation and theoretical knowledge to control the calculation accuracy and calculation efficiency of engine performance, combustion and emission.

TEXTBOOK

READING RERENCE 1. Gunter, Merker, et al. Simulating Combustion, Springer, 2006. 2. 顾宏中，涡轮增压柴油机热力过程模拟计算，上海交通大学出版社，1985. 3. 刘永长，内燃机热力过程模拟，机械工业出版社，2001 年 2 月 4.DE Winterbone and RJ Pearson,Theory of Engine manifold Design,professional Engineering publishing Limited,2000

COURSE PRE-REQUISITES Internal Combustion Engine Fundamentals, Engineering Thermodynamics, Heat Transfer , and Numerical Analysis COURSE LEARNING OBJECTIVES 1. Introduction of Engine Cycle Simulation (2h) The effect of engine cycle simulation on the development of modern internal combustion engine, the introduction to primary contents of performance simulation, course orientation and main teaching contents

2. Modeling and Numerical Calculation of Filling and Emptying Method(12h) 2.1 In-cylinder Processes modeling of Filling and Emptying Method(2h) Fundamental assumptions of filling and emptying method, thermodynamic system partition, and in-cylinder work process modeling

2.2 Working Fluid Composition Formulation and Thermodynamic Properties(2h) Calculation The working fluid composition, component mixture, the generalized excess air coefficient formulation methods; parameter calculation of thermodynamic properties such as working fluid internal energy, enthalpy and specific heat capacity

2.3 Calculation Model of In-cylinder Heat Release and Transfer(4h) MCC model and Weber model of in-cylinder heat release calculation, change relation between model parameters and operating condition, and heat transfer calculation model

2.4 Intake and Exhaust System Model of Filling and Emptying Method(2h) Intake manifold model, intercooler model, exhaust pipe model, and turbocharger model

2.5 Calculation Equation Solution of Filling and Emptying Method(2h) Initial boundary conditions, differential equation solver, and the iteration and convergence criterion

2.6 Discussion about Filling and Emptying Method Calculation(2h) Contents simplified of filling and emptying method for control simulation, discussions about mean value model; discussions about the calculation accuracy of heat release rate calculation model

Homework To build up a filling and emptying model of a single-cylinder engine, to simulate the model and subject the results

3 Quasi-Dimensional Multi-Zone Model of Engine Combustion(14h) 3.1 Method and Partition of Quasi-Dimensional Calculation Model(2h) Diesel engine combustion characteristics, phenomenological combustion model, and the assumptions and zone construction of the model

3.2 Spray Penetration and Entrainment(2h) Spray penetration and spray cone angle calculation, air entrainment calculation of every small zone, and the influence of vortex and wall impingement on the spray

3.3 Fuel Evaporation and Combustion(2h) Fuel evaporation and air fuel ratio calculation, ignition delay and quantity combusted calculation, cell heat transfer calculation, and in-cylinder thermal parameters calculation

3.4 Emission Calculation model(2h) Combustion equilibrium product calculation, NO model, and soot emission model

3.5 Gasoline Quasi-dimensional Combustion model(4h) The assumptions and Partition of quasi-dimensional combustion model, burnt and unburned zones thermodynamic process calculation, flame combustion speed calculation, and combustion and emissions calculation Discussion and Homework(2h) The problems and improvement direction of quasi-dimensional combustion model, the report of quasi-dimensional combustion model and solving

4 Intake and exhaust one-dimensional Unsteady flow Calculation(16h) 4.1 Basic Equation of the One-dimensional Unsteady Flow Intake and Exhaust(2h) Simple derivation of mass, momentum and energy conservation equation, conservation and non-conservation scheme equations, and impact analysis of friction and heat transfer

4.2 Solution scheme of One-dimensional Unsteady s Flow Equation with characteristics(2h) The numerical solution of the characteristic line of single hyperbolic partial differential equation, calculation format derivation with the characteristic line method of one-dimensional unsteady flow calculation, variable transformation and normalization, and final calculation format

4.3 Mesh Generation of Intake and Exhaust Flow Calculation and the Solving of Intermediate point(2h) Mesh generation of spatial directions, stability criteria and time-step determination, and numerical solution of intermediate node

4.4 Basic Principles of Boundary Conditions of Intake and Exhaust Flow and Simple Boundary Conditions(2h) Basic principles of inflow and outflow boundary condition, boundary condition equations of the upstream and downstream of the container

4.5 Boundary Condition Equations of the Upstream and Downstream of valves(2h) Building up the calculation equations of the upstream and downstream of valves, boundary condition calculation procedure

4.6 Pipe Joint Boundary Condition Equations(2h) Boundary condition equations of mutational cross-section pipe, typical tee boundary condition equations

4.7 One-dimensional Unsteady Flow Finite Volume Method(2h) Basic format derivation of one-dimensional unsteady gas flow calculation with finite volume method

4.8 High-accuracy Calculation Format of One-dimensional Unsteady Flow Finite Volume Method(2h) High-accuracy calculation format of one-dimensional unsteady gas flow calculation

Homework To learn the built-up of boundary condition equations of turbine and compressor, and to write study reports

5 Engine Performance simulation and optimization(4h) 5.1 Introduction of Optimization Method, Optimization Objectives and constraints(2h) Introduction to common optimization method, intake and exhaust timing, the determination of optimization objective and constraints of exhaust pipe

5.2 Introduction and Application of DOE Method(2h) Basic principles of DOE method, application examples of engine performance optimization GRADING FORMAT AND POLICY Homework, Quizzes—30% One comprehensive final exam—70%

DESIGN PROJEXTS 1. To build up a filling and emptying model of a single-cylinder engine, to simulate the model and subject the results. 2. To learn the built-up of boundary condition equations of turbine and compressor, and to write study reports . TEAM-WORK The problems and improvement direction of quasi-dimensional combustion model, the report of quasi-dimensional combustion model and solving

COURSE ROAD-MAP AND SCHEDULE Week# Lecture# 1 2 12

Lecture Topic Introduction of Engine Cycle Simulation Modeling and Numerical Calculation of Filling and Emptying Method

14

Quasi-Dimensional Multi-Zone Model of Engine Combustion

16

Intake and exhaust one-dimensional Unsteady flow Calculation

Lecturer

Reference

Homework

To build up a filling and emptying model of a singlecylinder engine, to simulate the model and subject the results. The problems and improvement direction of quasidimensional combustion model, the report of quasidimensional combustion model and solving To learn the built-up of boundary condition equations of turbine and compressor, and to write

Lab/Recitation Topics

study reports 4

Engine Performance simulation and optimization

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