Stirlingengineforum.com

On the video he said 230w @ 25psi.

Oh yeah. The GPU3 and the V160, they have to be designed right because they are commercially built. All the Beale number tells you is if build a stirling engine the same way as those, you can estimate the power output with a simple formula.

The degree does not matter. The important thing is the power piston lags the displacer bt 90 degrees

I have a big problem with the Beale number. Have you ever wonder how those stirling "pioneers" came up with the number? Answer. With stirling engines they designed and built, and those designs are supposedly optimum(or no one else will ever come up with a better design). I have spend a goo...

Ralf,
Are the Tc and Te related to gas temperatures? If those are the temperature differences of the working fluid, you should see much higher power output.

There is a chance your engine will work by going with a much smaller tube. Better yet, replace it with a metal tube. TDC -- Top Dead Center. When the piston is at TDC, make sure there is no room left in the cylinder. Also, does your cold piston lag the hot piston by 90 degree? Your design is a typic...

BTW. Why did you use copper for piston and ss for cylinder? You should use the other way around.

I wouldn't have TOTAL dead volume greater than 20% of displacement.
Look how small this tube is.
https://www.youtube.com/watch?v=NF4qvpR8RvY

So the displacement off each cylinder is about 6cc. What is the dead volume of the transfer tube?

nice to left it running on my office desk.

What kind of engine is this depasha? alpha, beta or gamma.

I don't know how much is minimum amount of dead space to you. Dead space is a necessary devil. Minimum amount of dead space leads to minimum amount of heating and cooling space.

There is also a gap between the displacer and the cylinder

Without change volume, increase of stroke leads to reduce in bore. That means less torque and I don't think there is a change in power output.

The side load is another thing that work against stirling engines since you don't want oil to lubricate the cylinder wall. The mechanism indicated by Ian can also benefit IC engines; but we have seen any of them been put into practice. Too many parts, too heavy?

Some techniques on this page are very useful when verifying your own stirling engine design. http://www.solarheatengines.com/ I worked out some number. Even if you can get the fluid temperature to 100c on the hot side and 20c on the cold side, with a 1.5cm piston (diameter) and a stroke of 1cm, the ...