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Hi Ian , I understand that aspect, but is there something going on with compression and expansion via the power piston?
Seqsun

Hi Ian , I am interested in what actually is going on when this scenario of cooling is in play. I understand the air in your engine is being compressed ,thus heated, then the pressure drops when the power piston draws out of the cylinder , thus cooling, is the cold end and the hot end in the cooling...

When calculating the 1.5:1 ratio does one have to consider the "dead" volume between the displacer and cylinder wall?
Thanks Seqsun

Hi Ian, What is the stove temp. that your stove top fan runs on?
Seqsun

Hi Ian, I really appreciate you getting back with some real life specs , this , with the previous explaination cements the principles that are in play . I guess your engine would be what they call a"square" engine where the bores are similar and the strokes reflect the 1.5:1 magic ratio? M...

Hi Ian, Are you able to tell me ,on your fan stirling what the power piston dia and stroke are and the displacer dia , length, and stroke are?
Thanks Seqsun

Hi Ian, this 1.5:1 ratio , is it assuming that both cylinders are the same diameter? If this is the case , then what are the best considerations when the displacer is 2.25"dia. and the power cyl. is 1.25"dia.?
Regards , Seqsun.

Thanks for the reply Ian, I 'm assuming that swept volume is bore x stroke, is this correct?
Thanks, seqsun

Greetings to all my fellow heat engine enthusists, I am wanting to build a stirling engine powered fan for the top of my wood stove with a temp. range of 200-600*F . I was wondering if there is any of you out there that , I guess first off , help me understand the importance of the correct compressi...