Search found 61 matches

by Crazyguy
Mon Feb 22, 2016 6:59 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

Re: What is the difference between thermal lag and lamina flow engines

Test#2.
My heat tube is 3/4" diameter and about 8" long. Half filled with pot scrubber. Larger choke hole no better.
Tried tea light candle n/g, then propane torch, red hot, n/g.
Wondering what I should be looking for if I'm going in the right direction or just spinning my wheels.
by Crazyguy
Mon Feb 22, 2016 4:44 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

Re: What is the difference between thermal lag and lamina flow engines

Test #1 = fail
No indication of running or what needs to be done next. All guess work. Working blind. :sad:
Making choke bigger.
by Crazyguy
Sun Feb 21, 2016 1:23 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

Re: What is the difference between thermal lag and lamina flow engines

Watched lots of video's on youtube. I'm going to try it as a free piston version first. Got the heat tube from a Solar garden LED light, stake. 3/4" copper cap on one end, 3/4" copper elbow other side with a small tuna can RTVed on top. Tuna can has a 1/4" hole in bottom leading to elbow as a choke....
by Crazyguy
Fri Feb 19, 2016 6:38 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

Thermal lag hot air engine project

Wish me luck. Going to build it. Here's basically what it might look like. Components are not to scale in relation to each other.
POC.

Image
by Crazyguy
Fri Feb 19, 2016 4:08 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

Thermal lag hot air engine project

I'll build it and report back on the results. It may be awhile since I have a lot of household chores that have been assigned to me.:-(
The only hot air engine I've been succesful with, has been the pringles can, water piston, metronome engine.
by Crazyguy
Thu Feb 18, 2016 4:43 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

Re:thermal lag hot air engines

@ian sc Okay, i was looking at what was readily available and easy to fabricate and i forgot about copper spreading the heat. I just wonder how i would seal the ends , maybe compression fittings? I cant weld stainless steel. I wonder if high temp silicone sealer like the type used for internal combu...
by Crazyguy
Wed Feb 17, 2016 10:03 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

Thermal lag hot air engine project

@ ian sc
Thanks.
After reading, watching, and scratching my head I came up with this design. Any suggestions would be much appreciated.

Image
by Crazyguy
Tue Feb 16, 2016 3:11 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: What is the difference between thermal lag and lamina flow engines
Replies: 36
Views: 10790

What is the difference between thermal lag and lamina flow engines

I see all kinds of confusing information on the internet. Is there a difference betwern thermal lag and lamina flow engines? What are the key components of each?
by Crazyguy
Tue Feb 16, 2016 6:22 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: large lamina flow build
Replies: 97
Views: 41382

Re: large lamina flow build

@derwood I think your engine is awesome. I downloaded your zipped plans, looked them over, and was disappointed. Disappointed because the engine build is way beyond my pay grade and capabilities to build. It looks like a jet engine inside. Was the original build this complicated? The video's on you ...
by Crazyguy
Sun Aug 09, 2015 6:23 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Making manson engine
Replies: 6
Views: 4382

Re: Making manson engine

I ve also seen the port inside the displacer cylinder on the hot side and on the cold side. Which is better?
by Crazyguy
Sun Aug 09, 2015 4:40 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Making manson engine
Replies: 6
Views: 4382

Re: Making manson engine

What about ratios of displacer to power piston and the size of the ports? Are bigger ports better? I cant even get it to run at all. My first attempts were with rubber diaphragms which didnt work for some reason , so i thought i would try a piston instead.
by Crazyguy
Sun Aug 09, 2015 4:03 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Making manson engine
Replies: 6
Views: 4382

Re: Making manson engine

Im no expert on this by a long shot, but i tought the displacer had to displace or move air. Allow air to pass around etc.
by Crazyguy
Sat Aug 08, 2015 2:59 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Making manson engine
Replies: 6
Views: 4382

Making manson engine

I have tried numerous times to make a working engine. First failure was free piston nasa type, then pringles can metronome ( i did get it to work with a water piston though) then a couple tries at manson. Mostly failures. Here is my latest idea, shooting for an LTD version of the manson. I need to b...