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Old 04-02-2009, 04:47 PM   #1 (permalink)
ny551
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Hybrid Thermal Efficiency

Hello,

I'm trying to understand how to calculate Thermal efficiency of a car with regular Otto cycle and with Hybrid Parallel system.

I know that Thermal Efficiency = Wout/Qin.

If I have the fuel consumption data, RPM and Torque,
How can I calculate Qin?

As for the hybrid, is it enough to derive that the thermal efficiency in the hybrid system is : (Wout(without electric motor) + P (electric motor)) / Qin

?

I hope you could help me,
Yair.

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