Stirlingengineforum.com

Wellington Assuming 13.5 Volts output, 10W gives some 0.75A nominal. Going back to the 20 hour rate bit, it suggests that is sufficient to charge a battery no larger than 15AH. In fact it will, it will just take longer. How long? That depends on the state of (dis) charge of the battery. A bit more: ...

Hi Wellington The charging voltage is temperature dependent, about 13.5 ish volts usually for a 12V battery. See table: http://www.powerstream.com/SLA.htm Then you need to decide the charging current, a typical figure is to charge at the 20 hour rate; ie. if you have a 40 AH battery it should be cha...

They are used to drive submarines ...

http://www.stirlingengines.org.uk/manuf ... /subm.html

No expert on such matters, but I would think 1000 bhp or more would be required.

Dave

I live in UK, and I've never seen a fitting like that. Some points: It looks like an [obsolete ?? ] solvent weld type which are seldom used now. Most use the 'Speedfit' type now. The wide end will not be 3/4". Standard UK sizes for pipe is 15mm or 22mm. The 1/2" bit is not known here. UK P...

Didn't have any CI for the piston. The original was made from aluminium alloy, but it scored very badly. No idea what alloy grade it was, just a bit of bar lying around. The only other option I had without going to buy metal for the job was either M.Steel, S/Steel or more brass. As the bore is brass...

Hi Folks Well, ran it for over two hours today, stripped the engine and found no real problems. Bit surprised ... The power piston is 20mm dia. PTFE. I did expect to see some scoring, but it was quite OK apart from a small 2mm dia. mark, and a similar mark on the bore. Why, I don't know. Does not se...

Hi Folks Video of an engine just made from bits hanging around the shop. No pretence to be elegant, just curious to see if I could make one. Lots of parts not made too well, the clattering is from the Displacer big-end bearing. Actually sounds a lot louder on the clip than for real. http://i359.phot...

Hi Folks

Obligatory first post.

Me? Retired IT Tech. Myford S7, Warco WM16 Mill, other odd bits.
Made first Stirling about 1974, went well. Next one, own design, refused to run.

So, back again ... some 35 years later. Certainly older, wiser open to question.

Dave