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I have made a gamma type Stirling engine with the following specs: Power cylinder volume = 70 cc Displacer cylinder volume = 100 cc Compression ratio of displacer = 2 Crank angle = 90 degrees Cylinder pressure = 101 kPa Displacer piston stroke = 41.4 mm Displacer piston length = 47 mm The power pist...

Okay thanks!

I am using a piston rod to connect thee displacer piston to the flywheel. Can you recommend what seal to use for the piston rod?

PS: My engine is GAMMA type, with hot end temperature of 400 degree centigrade and the cylinders will be pressurized at 1 atm pressure

Hey Ian,

So if I am using a regenerator in the pipe connecting the two cylinders, would I need to place the cooler then?

Thanks

Hey!

I have seen some designs of Gamma Type Stirling engine and I found a cooler/heat sink on the displacer cylinder. Why would we need a cooler on the Displacer Cylinder when we have the power piston cylinder (cold cylinder) to maintain the temperature difference?

Hey! I'm designing a Solar Powered Gamma Type Stirling engine with the following parameters: 70cc piston cylinder volume, 100cc displacer volume, Stroke of 39.5mm and crank radius of 19.8mm. As far as I have searched online for Stirling Engine Designs, all the flywheel design has been a guess work. ...

Thank you Ian for all the help! Your advice is quite valuable for a newbie! :)

Sorry but i mistakenly wrote it as a beta type. I'm making a gamma type. Thanks anyways

I am building a gamma stirling engine and was considering using a 100 cc displacer cylinder an a 70 cc power piston. But that is just an assumption. I have no clue how to decide the volume of the displacer and power piston cylinders. So any help would be appreciated

Thank you everyone for your replies! Much appreciated :)

Hey Ian!

We are using a solar parabolic dish and have achieved a temperature of 250 degree Centigrade for the hot end. Can you please suggest what swept volume ratio should we use and what should be the size of the displacer and power piston?

Osama

Thank you Ian! :) I will make sure to take your suggestion for the diameter.

I can't find any material to work out the size by calculation, so if you have any link to that, kindly share it. Thanks again!

Hey R,

I haven't decided the alternator, but either be coupling it with the shaft or will be using a gear mechanism.

What I need to know is whether there is any sort of calculation for the diameter of the connecting rods?

Osama

Hey Ian!

I hope to get 50 W from the alternator.

Hi! I'm making a 50W Solar Powered Gamma Stirling Engine, that will operate on a hot end temperature of 250 degree Centigrade. Can anyone please help me in designing the crank mechanism & connecting rods for the engine to transfer my power? (I will be using an alternator to generate electrical p...