ABE 133: Agricultural and Biosystems Power and Energy Sources Lecture PDF

# ABE 133: Agricultural and Biosystems Power and Energy Sources ## Heat Engine - **Lecturer**: Prof. Roberto E. Tabal ## Learning Outcomes - Identify and differentiate heat engine types. - Classify internal combustion engines. - Analyze engine functionality and applications. ## What is a Heat...

# ABE 133: Agricultural and Biosystems Power and Energy Sources ## Heat Engine - **Lecturer**: Prof. Roberto E. Tabal ## Learning Outcomes - Identify and differentiate heat engine types. - Classify internal combustion engines. - Analyze engine functionality and applications. ## What is a Heat Engine? - A heat engine uses heat energy from fuel to generate mechanical power for any useful purposes such as driving machines and for electrical power generation. ## Major Classification - **External**: Burns fuel and air outside the cylinder of the engine. - **Internal**: Burns fuel and air inside the cylinder of the engine. ## External Combustion Engine - **Classification** - **Steam Engine**: Rotary, piston. - **Stirling Engine** ## Internal Combustion Engine - **Classification** - **Piston or Reciprocating** - **Rotary** - **Gas Turbine** - **Jet Engine** - **Rocket Engine** ## Classifications of Piston Engine ### 1. According to Ignition - Electric-Spark Ignition - Fuel Injection Ignition ### 2. According to Fuel - Gasoline Engine - Kerosene Engine - Diesel Engine - Gas Engine ### 3. According to Thermal Mechanics - Constant Volume Cycle (Otto cycle engine) - Constant Pressure Cycle Engine (Diesel cycle engine) ### 4. According to Practical Cycle - Two-Stroke Cycle Engine - Four Stroke Cycle Engine ### 5. According to Number of Cylinders - One-Cylinder Engine - Two-Cylinder Engine/ Multiple-Cylinder Engine ### 6. According to the Direction of Cylinder - Horizontal Type Engine - Vertical Type Engine ### 7. According to Disposition or Arrangement of Cylinders - Linear Type Engine - Oppose Type Engine - V, W, X, H Type Engine - Star Type Engine ### 8. According to Cooling Systems - Water Cooled - Air Cooled ### 9. According to the Crankshaft Speed - Low Speed (800 rpm and below) - Medium Speed (700 to 2500 rpm) - High Speed (1000 rpm and above) ### 10. According to Action - Single Action - Double Action ### 11. According to Use - Farm - General land - Marine - Generator or Dynamo ## Thanks - Prof. Roberto E. Tabal, MSAE - Lecturer ## Reference - Agricultural and Biosystems Power and Energy Sources - [https://aerospacenotes.com/propulsion-1/gas-turbine/](https://aerospacenotes.com/propulsion-1/gas-turbine/) - [https://aerospaceengineeringblog.com/jet-engine-design/](https://aerospaceengineeringblog.com/jet-engine-design/)