Search found 147 matches

by theropod2
Sun Apr 06, 2014 7:07 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Solar Powered LTD Twin Stirling Engine Generator (Gamma)
Replies: 26
Views: 12306

Re: Solar Powered LTD Twin Stirling Engine Generator (Gamma)

simonchan wrote:Huh? But there's no thread on the bike spoke. You mean you place the nut by putting glue?? or weld??

ON the end of the spoke that connects to the rim there should be threads and a odd shaped nut one uses to true up the rim by varying torque on the spokes.


RS
by theropod2
Sun Apr 06, 2014 6:51 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: High powered Stirling going into production
Replies: 72
Views: 54907

Re: High powered Stirling going into production

I know all this and live with it daily. My battery bank, and large AC inverter, are housed in a separate steel structure and indeed the feed cables from my 3,500 amp hour bank to inverter are massive 00 gauge. They are only 1.5 meters long and are fed from huge solid copper buss bars connecting all...
by theropod2
Sat Apr 05, 2014 4:05 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: High powered Stirling going into production
Replies: 72
Views: 54907

Re: High powered Stirling going into production

A simple regulator similar to what's used on propane tanks should suffice to hold the gas pressure at a given setting. Is there something I'm missing here? Maybe you are not missing anything? It could be as simple as you suggest. I didnt ask specifically for details in this area as for me the wifi ...
by theropod2
Sat Apr 05, 2014 5:33 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: High powered Stirling going into production
Replies: 72
Views: 54907

Re: High powered Stirling going into production

Since I was thinking to possibly run the engine with a rocket-stove I did ask if one needed to buy the whole thing. The answer is no, they will sell units eg without the pellet burner as well as barebone engines. However, that said, since the internal N preassure is controlled and adjusted automati...
by theropod2
Fri Apr 04, 2014 3:43 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: High powered Stirling going into production
Replies: 72
Views: 54907

Re: High powered Stirling going into production

What about those of us that already have our own battery bank and live off grid. The engine/generator would be great, but shipping their batteries is a cost barrier. I just need an engine that will make the electrical power and throw a little heat back into the house when needed. I don't need a whol...
by theropod2
Sun Mar 23, 2014 3:08 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha type 3D printed Stirling
Replies: 5
Views: 4479

Re: Alpha type 3D printed Stirling

Very nice!

Welcome aboard.

R
by theropod2
Fri Mar 21, 2014 4:28 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: 2-cylinder Gamma - project
Replies: 69
Views: 27696

Re: 2-cylinder Gamma - project

Triangle.Stirling , If you use copper tube there's a trick to bending it without kinks. Fine loose dry sand. Plug both ends of the tube with a wooden dowel shaved to fit very tight. Plug one end and then fill the tube with the sand. Leave enough room to plug the other end. Tight bends can then be ca...
by theropod2
Thu Mar 20, 2014 4:24 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: alpha type stirling engine question
Replies: 18
Views: 10874

Re: alpha type stirling engine question

Isn't this a variation of a gamma engine?

Nice either way.

RS
by theropod2
Sun Mar 02, 2014 11:16 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Big Stirling Engine
Replies: 47
Views: 35500

Re: Big Stirling Engine

Well I can vouch for at least one of those feedback comments because it was mine! As I said, overall I am vey pleased with the engine - but I did go in with open eyes, knowing what to expect in terms of power rather than accepting the sellers claims at face value. NHH OK, that's not exactly what I ...
by theropod2
Sun Mar 02, 2014 7:23 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Big Stirling Engine
Replies: 47
Views: 35500

Re: Big Stirling Engine

With all the Hyporex stirlings being sold on ebay, I havent found a forum yet where someone posted that they got one. In response to your curiosity or search for buyers who got their engine delivered, http://www.hyporex.ca/testimonial.php Sorry to be a spoil sport but using an internal reference fo...
by theropod2
Wed Feb 05, 2014 6:48 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: delete
Replies: 5
Views: 3992

Re: Solar Powered Stirling engine school project help!!

I think you are adding complexity where it isn't needed and may waste energy by the addition of processes to the whole affair. Every step where the heat is moved without doing work in the engine is potentially wasted.

R
by theropod2
Fri Jan 10, 2014 4:22 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Here's why we NEED a 10W Stirling generator!
Replies: 8
Views: 9689

Re: Here's why we NEED a 10W Stirling generator!

Bookmarking for later comment.

R
by theropod2
Mon Dec 30, 2013 5:07 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Stirling alpha . recicled materiales - new creatures
Replies: 8
Views: 4153

Re: Stirling alpha . recicled materiales - new creatures

Alberto,

You MUST give us some background on these different engines! Please!!

R
by theropod2
Fri Dec 06, 2013 12:48 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: NASA Stirling research
Replies: 9
Views: 5790

Re: NASA Stirling research

Nice video! I wish I could buy one of those little test engines, running 160 watts each. I bet they would out live my old ass. I'll take 3K watts please. I wish we could have seen the scaled up models about to be tested in the vacuum chamber! I have a forest of wood waste, and with my current ice st...
by theropod2
Fri Dec 06, 2013 12:23 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: HHO, woodgas, OTTO alternative
Replies: 6
Views: 4631

Re: HHO, woodgas, OTTO alternative

Wood gas could be collected and pressurized in a large large large propane tank. Even if not made liquid a 5,000 gallon tank could store a lot of this gas. If stored the particulates would settle out. Didn't they used to make coal gas and light entire cities with the stuff?

R