ENGINE SIMULATOR
ENGINE
RESULTS
P–V diagram
Pressure and temperature vs crank angle
Idealised cycle: isentropic compression and expansion, Wiebe combustion over 40° crank angle, 35 % wall heat loss. Indicated work includes the gas-exchange loop.
Torque and power
Efficiency and fuel consumption (BSFC)
DATA
A red duty cycle means the injector is open more than 90 % of the cycle, which is the practical hardware limit.
Peak pressure and temperature
Efficiency and torque
DATA
The model has no knock limit. At high CR with fixed ignition it therefore shows efficiency gains a real petrol engine cannot reach; watch the temperature at ignition.
Based on a simplified thermodynamic model. Meant for learning and comparison, not for tuning a real engine.
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