1.2 Problem Statement
There are many problems with the existing intake manifold design, such as it cannot give the best pattern of air flow induction in trying to have the best
performance of engine. This is because of the main function of intake manifold is to flow the air into engine block engine cylinder and direct it to induction valve at top
of cylinder head. It has long been realized that the design of inlet manifolds has a large effect
on the performance of reciprocating engines. This project is focused on intake manifolds design and it material properties. Design of intake manifolds has lot of
effect to engine performance, temperature on inlet valve and smooth of flow. Stability of engine working is also involved in the design of intake manifold. That
means rate of rotation per minute RPM for valve is depend on intake manifold design and also throttle body system.
Problems that will be studied in this project are: 1.
Effect of curve pattern of primary pipe 2.
Effect of material on intake manifold The unsteady nature of the induction processes means that the effect of the
manifold on charging and discharging is extremely dependent upon the engines speed. This is because the impedence or admitance of the manifold is a function of
the frequency of the pulses entering it. The outcome of this is that it is possible to tune engine manifolds to give a particular power output characteristic as a function
of speed. The comparison between existing product design of intake manifolds Proton
Wira 1.6 XLi with other model of car intake manifold will be done. The comparison will be focusing on the velocity and temperature parameter, and also
effect of the material.
1.3 Project Objective
The main objective of this project is to learn and understand the concept and working principles of intake manifolds component for any model car and Proton
Wira model. Type of component that involves in intake manifold part, component of car intake system, effect of intake manifold design and material will be studied
through literature review. Journals and books will be the main sources of getting the information.
The study is also referring to existing product of intake manifold in market. The design of existing intake manifolds is adapted to CAD software. Effect of
velocity, temperature and materials will be analyzed through CFD software based on existing design.
The new design and material will be proposed as purpose to improve the output performance in term of velocity, temperature and materials effect. The design
and material that proposed is base on studying that done before. CFD and FEM technique will be used to make a computational analysis for proposed intake
manifold design. Objectives of this project are:
1. To understand the working principles, components, design and development
of the intake manifold through literature study. 2.
To analyze existing design of intake manifolds for Proton WiraWaja and its material properties.
3. To propose new design and material of intake manifold.
4. To perform computational analysis of the proposed intake manifold using
CFD and FEM techniques.
1.4 Project Scope