An inventor claims to have developed a heat engine working between tem

1.	An inventor claims to have developed a heat engine working between temperature 27°c and 227°c having efficiency of 45% is the claim valid? Prove
Answer» Answer: If this engine is only thermal, such an EFFICIENCY is theoretical impossible. The thermal cycle can’t have a higher efficiency than the CARNOT cycle operating between the same temperatures. The latter has an efficiency of NEARLY 40%, moreover theoretical. A REAL Carnot engine moreover would have quite less efficiency. The alleged engine can’t have an efficiency of 45%.

An inventor claims to have developed a heat engine working between temperature 27°c and 227°c having efficiency of 45% is the claim valid? Prove

Answer»

Answer:

If this engine is only thermal, such an EFFICIENCY is theoretical impossible.

The thermal cycle can’t have a higher efficiency than the CARNOT cycle operating between the same temperatures.

The latter has an efficiency of NEARLY 40%, moreover theoretical.

A REAL Carnot engine moreover would have quite less efficiency.

The alleged engine can’t have an efficiency of 45%.

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An inventor claims to have developed a heat engine working between temperature 27°c and 227°c having efficiency of 45% is the claim valid? Prove

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