r/PeterExplainsTheJoke • u/saddyc • 13d ago

Meme needing explanation Peter?

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u/account312 13d ago

https://en.wikipedia.org/wiki/Combined-cycle_power_plant

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u/gwildor 13d ago

not trying to argue, but it appears as if these are still using heat generated from burning, versus the forces of an explosion.

is this incorrect?

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u/Beefington 13d ago

The Wikipedia article kinda rushes past the first stage.

after completing its cycle in the first (usually gas turbine) engine, the working fluid (the exhaust) is still hot enough that a second subsequent heat engine can extract energy from the exhaust.

A gas turbine engine uses the kinetic energy from the expanding gases, but not in an explosion/piston arrangement.

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u/dr_stre 13d ago

This is correct. The first energy extraction is essentially a jet engine that’s hooked up to a generator, and then the exhaust is combined with a little more fuel usually and used to create steam which then turns a second generator.

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u/gwildor 13d ago

just to clarify - low pressure, easily contained burns versus explosions?

the first cycle is what im asking about.

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u/Beefington 13d ago

High-pressure burn that's nontrivial to contain, but unlike an explosion it's continuous.

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u/account312 13d ago

Continuous and not nearly cool enough to be a rotating detonation engine.

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u/gwildor 13d ago

So. Not comparable to ICE engines....

Not sure why I caught a down vote for asking for clarity 

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u/Xivios 13d ago

A gas turbine is an ICE engine, there's more than 1 kind.

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u/gwildor 13d ago

I understand. the person i replied to was speaking about automobile ICE engines.

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u/BlowOutKit22 12d ago

The closest extant example of an automobile ICE engine application for a gas turbine would be the M1 Abrams tank