internal combustion engine fundamentals, engineering
TRANSCRIPT
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: [email protected] 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 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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