COURSE NUMBER & COURSE TITLE: ME 500 Engine Cycle Simulation and Optimization

INSTRUCTOR: DENG Kangyao, FANG Junhua

Credits: 3 Language of instruction: Chinese

REQUIRED COURSE OR ELECTIVE COURSE:

Internal Combustion Engine Fundamentals,

Engineering Thermodynamics, Heat Transfer ,

and Numerical Analysis

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 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.

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 Name: FANG Junhua

Office: 34206589 Office:

Email: kydeng@sjtu.edu.cn Email: fjunhuai@sjtu.edu.cn

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 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.

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# Lecture Topic Lecturer Reference Homework Lab/Recitation Topics

1 2

Introduction of Engine Cycle Simulation

12 Modeling and Numerical Calculation of Filling and Emptying Method

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

14 Quasi-Dimensional Multi-Zone Model of Engine Combustion

The problems and improvement direction of quasi-dimensional combustion model, the report of quasi-dimensional combustion model and solving

16 Intake and exhaust one-dimensional Unsteady flow Calculation

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

study reports

4 Engine Performance simulation and optimization

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