15 - Engine Operating Characteristics

15.1 Engine Performance Parameters
15.2 Indicted and Brake Power and MEP
15.3 Operating Variables That Affect SI Engine Performance, Efficiency, and Emissions

• 15.3.1 Spark Timing
• 15.3.2 Mixture Composition
• 15.3.3 Load and Speed
• 15.3.4 Compression Ratio

15.4 SI Engine Combustion Chamber Design

• 15.4.1 Design Objective and Options
• 15.4.2 Factors That Control Combustion
• 15.4.3 Factors That Control Performance
• 15.4.4 Chamber Octane Requirement 
• 15.4.5 Chamber Optimization Strategy

15.5 Variables That Affect CI Engine Performance, Efficiency, and Emissions

• 15.5.1 Load and Speed 
• 15.5.2 Fuel-Injection
• 15.5.3 Air Swirl and Bowl-in-Piston Design

15.6 Supercharged and Turbocharged Engine Performance

• 15.6.1 Four-Stroke Cycle SI Engines
• 15.6.2 Four-Stroke Cycle CI Engines
• 15.6.3 Two-Stroke Cycle SI Engines
• 15.6.4 Two-Stroke Cycle CI Engines

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