Stirlingengineforum.com

For anyone who might be interested I have posted an Indigogo campaign to raise funds to build a prototype Stirling Engine. I've been theorizing on this subject for years and if possible would like to move beyond just theorizing an making sketches and such and do some real testing. According to Tesla...

Compression of a small amount of air can generate considerable heat.

https://www.youtube.com/watch?v=htObjxzwLBQ

The power is still going to be measured in Milli Watts, rather than Watts. Ian S C An LTD type engine might not be the best design. An alpha or some other type might due just as well or better, but I always thought seeing was believing. That large LTD in the video Aviator168 posted is driving a 150...

Ah, and here I thought it was an original idea.

A perpetual machine? Presumably no matter how feeble the engine, it could operate some kind of little air compressor. So some warming and cooling effect above and below ambient should be possible, if for example the engine were started initially by setting it atop a block of ice. Something would ha...

Thanks! very cool.

To Illustrate: LTD_with_air_cycle.gif A simple LTD Stirling with a little air-pump for an air-cycle heating and refrigeration unit. That is of course simplified. The hot and cold heat exchangers would consist of coils of tubing looping around the top and the bottom of the engine rather than straight...

That's a low temperature deferential engine. What kind of power requirement are you talking about? No specific power requirement particularly. Just make the LTD big enough and the air pump small enough that the Stirling Engine can run the air-pump or air compressor. The compressor or air pump doesn...

You have 3 displacers here? No, just one displacer, but it has holes in it. Like this: displacer.gif The regenerator consists of tubes running from top to bottom. You might also want to switch cold and hot ends. My reasoning for having the heat on top is that heat rises. Suggestion. If you get rid ...

Compressing air generates considerable heat. Releasing that compressed air results in cooling.

What I have in mind is to have an LTD type Stirling (Or any Stirling Engine for that matter) power an air-cycle heat pump.

What I had in mind was something like this engine:

https://www.youtube.com/watch?v=ARD3ctp80ac

but I wanted to somehow attach a very small compressor or air pump. Something very simple, similar to a bicycle pump. This type of gearing looks like a very smooth way to accomplish that.

That gearing may very well solve a problem I've been working on. I want to build an LTD type Stirling that will power an air compressor. It would need to be geared down. This type of gearing looks like a very elegant way to accomplish that without a lot of loss due to side load.

I've been thinking about doing something like this to increase surface area and heat transfer between the displacer chamber and the air in the chamber. The regenerator channels are just tubes. There are holes in the displacer, which would have to be rather close fitting to force the air through the ...

https://www.youtube.com/watch?v=vH2WJrq3cw8 There is another similar video: https://www.youtube.com/watch?v=dl_eP3c4gD8 Seems like it could be a good way to convert a reciprocating motion into a rotary motion very effectively as well as vice versa. There appears to be a 2:1 ratio between the inner ...

heat is in a sense literally disappearing. That is, the heat is being converted to electricity by the load on the engine. Assuming the load is an electric generator. Right on. One of the laws of thermal dynamics. Even without a load. Work is being done except the load is on the friction of the slid...