Home made High Power Stirling engine with fan

Home made High Power Stirling engine with fan

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[mizrael77]

Wtf are you saying? Many powerful sterling have been realised.

Ford and GM have done extensive research on Stirlings, at least 20 prototypes of stirling-powered cars have been realised.

In 1985 a Chevy Celebrity powered with a 90hp Stirling could run 0-60mph in12 secs...

Please don't speak if you don't know what you are talking about man

[V2DK]

actually I bet your Petrol/Diesel car is less efficient

[elbacano97]

that fan

"puts on sunglasses"

blew me away.

[triketrek11]

can i see your reference? I'm trying to see where you found those records and numbers because i can't find them. only asking because I'm interested, thanks!!

[boldziga]

@mizrael77 but ford and gm make crappy, non-efficient cars, they have the worst gas milage of any car manufacturer

[Lanthoriel]

Hello. I've been thinking possibilities of this engine type. With access to decent hardware store and garage, would it be possible to make homemade stirling engine powerful enough to move a really small and light car, but light enough to be lifted by one man.

I'm not talking any high-performance or fancy stuff; Just as light and simple wooden frame car as possible, which wouldn't have to run faster than running speed, but could climb small hills. I'm just interested in the possibilities. :)

[carpetmonk]

steam is efficient enough. 1700 to 1 expansion ratio. thats much more than gasoline. downside i suppose would be lack of instaneous conversion. steam can be used more than the intial conflagration, like gasoline.. the titanic used the same steam 3 times in different engines on the same drive train. a sterling car is a great idea.. green? no. but design a heating chamber with liquid combustible lines, gaseous fuel lines, even a tray for coal, trash.. and yo ucould run car on anything

[JesusDillinger]

Okay, so where do I get a Sterling set to power my house?

[WorBlux]

@geoffart

Yes, I suppose the fan moves because the molecules in one piston smack harder into it than on the other piston and the fan takes up this energy, but something tells me it's not something you could measure or notice by standard means.

[geoffart]

put it this way: if you were in a room with a fan-stirling and a blow-torch (enclosed enviroment), then the fan would indeed never, over a period of time cool the room because, as you rightly point out, the process is not one way. The fan will have to slow down, and the energy would be converted back to heat. I think this is what you meant?

[geoffart]

heat differential indeed proportional to work of heat engine can be extracted - and a blow torch is a pretty big one lol!! If the blow is supply 10000W of power straight to heating the air, then thats going into translational, rotational and vibratilonal degrees of freedom in mocules. Trans relates to heat and K.E. If velocity of fan increase, then some of the blow torch energy, (but not air's energy) is being redirect to fans kinetc energy, rather than heatering (temporary process) no?

[geoffart]

I have some background in thermodynamics with an emphasis on heat engines (a few yrs back now...), so I would say yes: entropy will increase. But as long as the fan is in motion, the room will not be as hot as it would otherwise have been, since only a certain amount of energy is avaliable. Once the fan has either stopped, either through frictional forces or braking, then all temps balance. K.E of all molecules + K.E of fan = total K.E no?