Stirling engine 1

First working test of a 'gamma' type Stirling engine. The hot/cold cylinder was formerly a paint can. Displacer is 2 discs, space between packed with steel wool. Power piston bore/stroke 1.5"/3", displacer 4.25"/2". Phase angle 80 deg. approx. Cooling technique basic but effective.

Category:

Entertainment

Tags:

• Stirling
• engine
• heat
• engineering
• science

[TimpBizkit]

0.1% Efficiency

[james9149]

Can't argue with that!

[fuzzymonkey777]

Very cool design. Is your power piston made of graphite?

[james9149]

No, it's brass. The tube is 42 mm OD copper. Seal is maintained by oil, but might try coating with solder then machining down for a closer fit.

[richardebbole]

0.too much friction

[vincent7520]

somtin' wrong with design

[superfelixRC]

@TimpBizkit

0,001

[IQmaza]

@TimpBizkit Jajaja :D

[3carloscruz]

the shaft and the wheel is too heavy for the power of a Stirling engine with these dimensions

[michael970]

Looks pretty cool great job TAKE CARE

[acerkiwi]

Stirling Engines can be more efficient and as powerfull as and diesel engine.

[timkowalik]

You've got way to much friction. With the heat of a torch, it should run at least 1000 rpm. I made a smaller version that runs off an alcohol candle that tops of at 1600 rpm. Check out my videos. Don't use oil as a lubricant. Way to much drag. Graphite works great. Polish any of the sliding surfaces like the rods, ball bearings instead od plain ones, and don't have leaks.

[Zetune79]

the inneficiency is inherint in the concept of a stirling engine, The relative temperature difference with respect to absolute zero is too small for any practical amount of work to be accompished. to turn a big wheel like this is actually pretty good for a stirling engine.

[shorty40merza]

i also made one and the efficiency was very bad where does all the inefficiency come from is it just the friction? or is it the piston perfection as well which lets air out?