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Old Aug 20th 2018, 08:31 PM   #1
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Carnot Cycle problem Help please

Carnot Cycle 300 degrees to 25 degrees 125Kn 250 cycles per second

Find
What work is transferred?
Power required
Heat rejected during process

Since I don't have length of stroke how do I find work.

Heat rejected is that not during the isothermal part of the cycle so don't you need pressures and volume to find that.

Any help would be appreciated. Thanks

I'm not looking for a full solution just any hints would be great

Last edited by Kromdil; Aug 21st 2018 at 04:48 PM.
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Old Sep 18th 2018, 07:38 AM   #2
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If you know the working fluid, use these relations:

$\displaystyle \oint P \,dV=\oint T \,dS$

$\displaystyle Q=\int Tds$

$\displaystyle Q_h=T_h\Delta S$

$\displaystyle Q_c=T_c\Delta S$

$\displaystyle \eta=\frac{W}{Q_h}=1-\frac{T_c}{T_h}$
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