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Author Topic: Which is the most efficient engine and why?  (Read 6765 times)

Offline Tintin_Triton

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Which is the most efficient engine and why?
« on: 30/09/2009 09:11:33 »
Well, I have heard about many engines, but my question is which is the most efficient? And if it is then why?


 

Offline peppercorn

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Which is the most efficient engine and why?
« Reply #1 on: 30/09/2009 12:08:40 »
The frustrating answer is 'it depends'.

No one type of engine (I'll assume you mean heat engine) is most efficient under all loads or speeds. Also realisable efficiency is also a question of what 'fuel' you have available.

If you want to pick a specific well-defined application for your engine, someone might have a more illuminating answer for you.
 

Offline lightarrow

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Which is the most efficient engine and why?
« Reply #2 on: 02/10/2009 18:33:08 »
Well, I have heard about many engines, but my question is which is the most efficient? And if it is then why?

It is an engine working with a Carnot cycle: two isotherms and two adiabatics. The reason lies in thermodynamic theory; it's demonstrated that every other cycle has a lower efficience.
http://en.wikipedia.org/wiki/Carnot_heat_engine
http://en.wikipedia.org/wiki/Heat_Engine#Efficiency
« Last Edit: 02/10/2009 18:35:26 by lightarrow »
 

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Which is the most efficient engine and why?
« Reply #2 on: 02/10/2009 18:33:08 »

 

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