How does a compound engine extract more work compared to a simple expansion engine?

Answer

It uses multiple cylinders in series for progressive expansion

Compound engines expand the steam sequentially through multiple cylinders; high-pressure steam expands in a small cylinder first, and the lower-pressure exhaust then moves to a larger cylinder for further expansion, maximizing work extraction from the initial charge.

How does a compound engine extract more work compared to a simple expansion engine?

#Videos

The most simple and efficient steam engine in history - YouTube

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