H2_FUEL.pdf

Hydrogen Fuel

Cell Engines

MODULE 3: HYDROGEN USE IN INTERNAL

CONTENTS

3.2 C OMBUSTIVE P ROPERTIES OF H YDROGEN ............................................................... 3-3

3.3 A IR /F UEL R ATIO .................................................................................................... 3-6

3.4 P RE -I GNITION P ROBLEMS AND S OLUTIONS .............................................................. 3-9

3.4.1 F UEL D ELIVERY S YSTEMS ................................................................................. 3-9

3.10 H YDROGEN G AS M IXTURES .................................................................................. 3-20

Hydrogen Fuel Cell Engines and Related Technologies: Rev 0, December 2001

COMBUSTION ENGINES

Hydrogen Fuel

Cell Engines

MODULE 3: HYDROGEN USE IN INTERNAL

OBJECTIVES

At the completion of this module, the technician will understand:

• the combustive properties of hydrogen that relate to its use as a combustive fuel

• the air/fuel ratio of hydrogen fuel mixtures and how it compares to other fuels

• the types of pre-ignition problems encountered in a hydrogen internal combustion

engine and their solutions

• the type of ignition systems that may be used with hydrogen internal combustion

engines

• crankcase ventilation issues that pertain to hydrogen use in an internal combustion

engine

• the thermal efficiency of hydrogen internal combustion engines

• the type of emissions associated with hydrogen internal combustion engines

• the power output of hydrogen internal combustion engines

• the effect of mixing hydrogen with other hydrocarbon fuels

Hydrogen Fuel Cell Engines and Related Technologies: Rev 0, December 2001

COMBUSTION ENGINES