this post was submitted on 18 Dec 2023
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Science Memes

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I've invented a 100% efficient combustion engine (aussie.zone)
submitted 1 year ago by [email protected] to c/[email protected]
27 comments fedilink hide all child comments
 

I use it to heat my house.

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[–] [email protected] 30 points 1 year ago (1 children)

Most engines are less than 30% efficient at producing movement. The majority of the energy is lost as heat.

Thermodynamics tells us that pretty much all energy ends up as heat. In a closed system, any device that uses energy is 100% efficient at making heat. A 1000W computer will make exactly as much heat as a 1000W heater.

A 100% efficient engine can only exist if the desired output is heat, thus making it a pretty useless engine. Also, in a closed system, the exhaust cannot leave.

[–] [email protected] 10 points 1 year ago (3 children)

A 1000W computer will make exactly as much heat as a 1000W heater.

All space heaters should be coin miners (or some other borderline useless energy wasting tech, like AI training). Change my mind.

[–] [email protected] 6 points 1 year ago

We have enough of a chip shortage, tyvm

[–] owenfromcanada 3 points 1 year ago

If you want to be philanthropic, there are programs you can run that use your computer's idle time to process data for cancer research and such.

[–] someguy3 2 points 1 year ago

You can sign up for research crunching.