Heat Engine Thermodynamics Quiz

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Questions and Answers

What is the reversible power of the heat engine?

30 kW (correct)
50 kW
40 kW
60 kW

What is the irreversibility rate for this process?

170 kW
160 kW (correct)
180 kW
150 kW

What is the second law efficiency of the heat engine?

35%
25% (correct)
40%
30%

What is the reversible power of the heat engine?

37.5 kW (D) Signup and view all the answers

What is the irreversibility rate for this process?

162.5 kW (C) Signup and view all the answers

What is the second law efficiency of the heat engine?

20% (A) Signup and view all the answers

Flashcards

Reversible Power

The maximum theoretical power output a heat engine can achieve operating reversibly.

Irreversibility Rate

The difference between the actual power output and the reversible power output, indicating the energy lost due to irreversibilities.

Second Law Efficiency

The ratio of the actual power output to the reversible power output, representing how efficiently the heat engine utilizes its energy.

Reversible Power (Example 1)

30 kW

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Irreversibility Rate (Example 1)

160 kW

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Second Law Efficiency (Example 1)

25%

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Study Notes

Heat Engine Performance Metrics

The reversible power of the heat engine is a measure of its idealized maximum power output.
The irreversibility rate for this process is a measure of the rate at which energy is wasted due to internal dissipations.
The second law efficiency of the heat engine is a measure of how efficiently the engine converts thermal energy into useful work, considering both the first and second laws of thermodynamics.

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Description

Test your thermodynamics knowledge with this quiz on heat engines! Calculate the reversible power, irreversibility rate, and second law efficiency of a heat engine operating between two different temperature reservoirs. Put your understanding of thermodynamic processes to the test!