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2A2-3: Practical Thermodynamic Cycles > Diagrams/Formulas > Flashcards

Flashcards in Diagrams/Formulas Deck (7)
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1

Explain how this simple heat engine works:

 

2

Explain how the Carnot Cycle works:

3

Derive the following formula:

From: Efficiency = output/input

To: η = 1 - T2/T1

4

Derive the following formula for Otto Cycle:

From:

Heat supplied at constant volume = mCv(T3-T2)

Heat rejected at constant volume = mCv(T4-T1)

To: 

η = 1 - (T4-T1)/(T3-T2)

5

Derive the following formula:

From:

rV = (V1/V2) = (V4/V3)

To: 

η = 1 - 1/(rVγ-1)

6

Derive the following formula:

From:

Thermal efficiency = 1 - (heat rejected at constant volume)/(heat supplied at constant pressure)

To:

η = 1 - (T4-T1)/γ(T3-T2)

7

Derive the following formula:

From:

η = (Heat supplied - Heat rejected)/Heat supplied

To:

η = 1 - 1/(rp)(γ-1)/γ