Introduction: My Second Stirling Engine Generator, Produces Around 50mw

This is a more reliable Stirling engine generator that I built. It has a graphite piston and a larger cooling tank, so it will run all day powering the radio. The displacer is steel wire wool. I haven't measured it properly yet, but I think that it's slightly more powerful than the first one I built. This one will just about run the radio on one candle, although it really struggles with the LED's using three candles. Photo's  and more information is available my site :


mattbomb (author)2010-07-24

this would be sweet if you had a fort in the middle of nowhere like a forest. and you had a wood stove you could power lights and a radio like here.

Lance Mt. (author)mattbomb2010-07-30

How practical would a wood-fire generator be? I could see that ideal situation to work flawlessly.

mattbomb (author)Lance Mt.2010-07-31

it would work to. like even all night if you had to

Lance Mt. (author)mattbomb2010-09-15

I could live that lifestyle. Pizza oven must be included though.

mattbomb (author)Lance Mt.2010-09-20

ya i think thats all i would be eating

earthwindwater (author)2014-03-17

You again! :) Thanks again for the videos and kits!

shoefly4672 (author)2011-12-08

would it be possible to make one from 55gal drums and 2" exhast pipe and on a smaller scale can a car piston work or does it have to be like steel wool

rstumph (author)2011-08-01

hey since your producing enough electricity could you put a eat plate instead of candals

ykumar4 (author)2011-06-26

so can u pls tell me how to built this step by step please.

wiinick (author)2011-03-14

why does it slow down, thats not right.

segarza (author)2011-03-03

Question...Does it matter what brand of beer can you use? Kidding. Nice job!
Imagine how much power you could produce from a 1 gallon paint can sized Sterling engine....that would be cool to see...hint hint

scraptopower (author)segarza2011-03-03

Well, I'll just have to conduct a comprehensive study of all brands of beer to be sure! Heheh

I do plan on trying out a coffee pot Stirling engine sometime!


celalboz (author)2010-07-14

now if you use a voltage quadrupler circuit , that will be 75ma and 24v and , voltage goes up so the ampere a little bit as well. regulate that 24v and charge a 12v sla ...yey. Great thanks

pfred2 (author)celalboz2011-02-25

ha ha very funny! Thanks for the laugh.

The3rdPunch (author)2011-01-12

maybe next time supersize it with a campfire and some large piping or barells

sahalja (author)2010-11-26

Very good job.. Thanks

rmooresr (author)2010-09-16

Very cool! For some reason, I have the Hogan's Hero's theme song running through my head now!

lemonie (author)2010-07-13

Very nice (good sound too)


Lance Mt. (author)lemonie2010-07-30

The sound is crucial!

PKM (author)2010-07-14

Are you going to post this as an Instructable? I have a machined brass piston/cylinder combo thanks to steveastrouk's CNC lathe, but only bits and pieces of scarp bar/tube to make the rest, so I was imagining making a design something like yours. I'd be interested to see how you attached the power cylinder to the main cylinder to deal with airtightness and temperature issues.

scraptopower (author)PKM2010-07-25
I don't think I'll be doing an instructable on this, but it's identical to my stirling engine fan except for the following things:
  • Stronger bearings, I used M6 bolts cut down with a 2mm hole drilled in them]
  • Graphite power piston
  • Much taller to accommodate said piston.
  • Uses a 22mm pipe elbow to attach the piston
  • Steel flywheel from large beans tin
  • Big water tank
To attach the power piston, I used a 22mm pipe elbow superglued to the side of the can then sealed l all around it with RTV silicon , seems to be airtight. The piston cylinder fits in this and is sealed again with RTVAny air leaks would show up immediately because the cylinder is under water too :)

Sorry I missed your post for some reason.

rimar2000 (author)2010-07-14


About This Instructable




Bio: Scrap To Power - check out my website for more projects
More by scraptopower:Thermoelectric USB charger - off grid electricity.Tetra Pak Bird Box Idea.Stripboard track cutter
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