Diesel Cycle: Difference between revisions
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# Isentropic (adiabatic) compression | # Isentropic (adiabatic) compression | ||
# Isobaric heating (Qin): Combustion of fuel (heat is added in a constant pressure;) | # Isobaric heating (Qin): Combustion of fuel (heat is added in a constant pressure;) | ||
'''Engine displacement''' is the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. A '''combustion chamber''' is part of an internal combustion engine in which the fuel/air mix is burned. | |||
== Realistic Diesel Cycle == | == Realistic Diesel Cycle == | ||
Revision as of 21:47, 23 March 2026
Introduction
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Diesel Cycle
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Diesel Cycle
- Isentropic (adiabatic) expansion
- Isochoric cooling (Qout): Heat rejection. Power stroke ends, heat rejection starts.
- Isobaric compression: Exhaust
- Isobaric expansion: Intake
- Isentropic (adiabatic) compression
- Isobaric heating (Qin): Combustion of fuel (heat is added in a constant pressure;)
Engine displacement is the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. A combustion chamber is part of an internal combustion engine in which the fuel/air mix is burned.
Realistic Diesel Cycle
Mercedes Benz W211(2003)
- Engine displacement: 3222 cm3
- Bore x Stroke: 88.0 x 88.4 mm3
- Compression Ratio: 18.0
Bore x stroke gives V = 6xπ(8.8/2)2 x 8.84 cm3 = 3225.95cm3, which is rather close.
