Search found 2219 matches

by Ian S C
Sat Jan 26, 2019 2:20 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My stirling engine school project
Replies: 28
Views: 4307

Re: My stirling engine school project

User1, spot on. Remember to down load Andy Ross's book.
Ian S C
by Ian S C
Thu Jan 24, 2019 1:35 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My stirling engine school project
Replies: 28
Views: 4307

Re: My stirling engine school project

Yes, but you need to add the Heylandt Crown on top of the hot piston. Give it 1 mm to 1.5 mm clearance on the diameter, and 2 mm on the end, the crown should be as light as possible, mild steel is OK, but thin stainless steel is better. Make the bore of the cylinder and hot cap the same. If you use ...
by Ian S C
Wed Jan 23, 2019 4:24 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My stirling engine school project
Replies: 28
Views: 4307

Re: My stirling engine school project

Here's a rough(very)sketch of an ALPHA hot end, note where the air transfer port is. The piston in any Stirling Engine should fit very well, if you place the piston in the open (at each end) cylinder it should slide through under it's own weight, and if you block one end the piston should stop slidi...
by Ian S C
Tue Jan 22, 2019 3:07 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My stirling engine school project
Replies: 28
Views: 4307

Re: My stirling engine school project

The same motor before I changed it to air cooling, with the little power hacksaw that sometimes replaces the generator. It will actually cut a 13 mm steel bar in a bit over 20 minutes, not too bad for about 5Watts of power.
Ian S C

Image
by Ian S C
Sat Jan 19, 2019 3:46 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: My stirling engine school project
Replies: 28
Views: 4307

Re: My stirling engine school project

Hi User1, If you are building an ALPHA motor, it"s worth down loading Andy Ross's book "Making Stirling Engines", it's a free download, if you print it out it's 68 pages. No, steel wool won't work, you must have 2 well fitting pistons in proper cylinders, one the hot cylinder has an extension, the h...
by Ian S C
Fri Jan 04, 2019 3:17 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Burnt pancake displacer (carbon foam)
Replies: 8
Views: 3784

Re: Burnt pancake displacer (carbon foam)

Thanks for that Bumkin, as a first thought it could be used to line the furnace around the hot cap of a Stirling Engine. Also the blackened stuff (what ever you want to call it) could be wrapped round the cool end to dissipate heat. Something to think about.

Ian S C
by Ian S C
Thu Dec 27, 2018 1:57 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: "Hi...We are new here!" First posts here (or anywhere is OK)
Replies: 442
Views: 167968

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Welcome Voxelman, you'll find all sorts here. For home and water heating, go geothermal. For electridity I am coming to the conclusion that the best way I can see is if a group (city block, sub division, small town) get together and provide their own power, and at the same time their own cell and in...
by Ian S C
Fri Dec 07, 2018 1:34 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Hello from a new member
Replies: 3
Views: 2022

Re: Hello from a new member

When ever you have a few minutes to spare it's worth going right to the start and read a thread or two, and slowly work your way through, you'll find some good ideas, and some that are "well a bit odd", but all learning.
Ian S C
by Ian S C
Tue Dec 04, 2018 3:59 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Hello from a new member
Replies: 3
Views: 2022

Re: Hello from a new member

Welcome to the forum. Ian S C
by Ian S C
Fri Nov 30, 2018 2:24 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tin can engine dimensions
Replies: 1
Views: 1003

Re: Tin can engine dimensions

Have you had a look at Boydhouse's free plans in the top section of the index, hes the expert in tin can Stirling Engines.
Ian S C
by Ian S C
Wed Nov 28, 2018 3:02 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Thanks boydhouse
Replies: 2
Views: 1211

Re: Thanks boydhouse

Thank you Darryl, for providing this site, we'v had our times, but have pulled through, I don't know how, but thank you(and all the other guys that make up the forum.
Ian S C
by Ian S C
Tue Nov 13, 2018 2:51 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Need a 50 watt power output providing stirling engine
Replies: 2
Views: 1460

Re: Need a 50 watt power output providing stirling engine

If you have a machine shop, and know what you are doing, 50 Watts is not impossible to build your self. In this country I would expect to spend about $NZ 500 for materials to build such a motor, that's why my bigger motors have cost no more than $NZ 40, and produce 5 Watts, a lot of the stuff I use ...
by Ian S C
Thu Nov 08, 2018 3:45 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Small Beta type stirling engine not running
Replies: 2
Views: 1211

Re: Small Beta type stirling engine not running

I think I can see why the motor wont work, you have a large clearance around the displacer rod, you need absolute minimum without binding/friction.
Ian S C
by Ian S C
Tue Nov 06, 2018 3:26 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Designing a Beta Stirling Engine (Please help)
Replies: 2
Views: 1175

Re: Designing a Beta Stirling Engine (Please help)

Sarahwad, I imagine that you propose to build a pressurized motor. I would suggest that you down load Andy Ross's book "Making Stirling Engines" (it's free). I have run one of my larger unpressurized BETA motors, 1 3/4" bore using a large Freznel lens 24" x 18". It was summer time, and I am at about...
by Ian S C
Mon Nov 05, 2018 5:05 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Design and Manufacture of Beta Stirling
Replies: 8
Views: 3176

Re: Design and Manufacture of Beta Stirling

If you don't have a lathe the cooling fins can be made up from aluminium discs, all with the same size hole then alternate large and small outside diameter. One of my motors has fins like that, with three thin, long bolts through all the fins and spacers. The aluminium came from a surplus pot from t...