Week 10: Project 1 - FULL HYDRO case set up (PFI)

Aim:

The Main objective of this project was to setup no-hydrodynamics solver transient simulation of a port fuel injection engine using converge CFD.

Introduction

Port injection, the fuel injectors are positioned on the air intake leading to each cylinder of your engine. As your engine sucks in air to later be compressed your fuel injectors will spray a fine mist of fuel that will eventually mix with the ambient air as it gets sucked into your engine.

This allows the air and fuel enough time to mix with each other as they are eventually sucked into the cylinder wall. That air and fuel mixture would then be compressed and then ignited to complete the combustion process of your engine.

Port injection is the other of the two injection technologies and has been around for quite some time.

Benifits of PFI Engine

Since the 1980s, when carburetors were supplanted as the primary fuel injection technology, port injection has been in use. Fuel is injected into your air intake port and drawn into the piston, providing fuel for your engine's combustion stroke.

The advantage of port injection is that it allows air to uniformly mix with the gasoline before it is supplied into the engine cylinder. When the air and fuel mixture is evenly mixed, the combustion process can burn all of the fuel fed into the engine cylinder, which reduces carbon buildup from unburned fuel.

Direct injection allows less time for the fuel to mix with the air entering the cylinder, which can result in hot spots forming inside the engine cylinder. Hot spots are bad because they can cause one place to become significantly hotter than the rest of the engine cylinder walls, rather than uniformly heating them.