Powere sources for a stirling

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Bogstandard:
Nick,

It is frustrating, but just another trial on the journey thru life. A shrug of the shoulders and carry on doing what you enjoy.

This is way off topic, but this post is going nowhere until my metal stuff turns up. So I may as well show something of interest.

I don't know if you have seen it before Nick, but this is the one I dropped.

When eventually the storage box gets opened again, I will finish off all three that are all made except for assembly, and of course, make a new crank for this one.

I am wondering if they will run off the heat of the heater pads they put under vivariums, rather than an eggcupful of water being heated by a candle. They would be a lot safer for me, if they work.

I can't be trusted with matches any more.

John

BillTodd:

--- Quote ---I am wondering if they will run off the heat of the heater pads they put under vivariums, rather than an eggcupful of water being heated by a candle. They would be a lot safer for me, if they work

--- End quote ---
John,

What about putting cheap 50/100w soldering iron element into a block of aluminium? You could control the heat/temperature with a simple light dimmer

e.g.

http://cpc.farnell.com/duratool/d00757/heater-element-for-zd-415/dp/SD01389

Bill

Bogstandard:
A good idea Bill, unfortunately I think I will need a few to cover the area I want. I would like a small table top, say 18" square, where maybe a dozen low temp stirlings could sit, all running.

Vivarium heaters are ready made heating pads, and you can get them in fairly large areas for not too much money. I think they only generate heat on the area that is covered.

http://www.discountleisureproducts.co.uk/Heat_Mats

I just don't know if they will provide enough heat. I will have to buy a small one and try it.

I think I still have some 1/4" diam heating elements from when I was working on cellulose ribbon cutting. The only problem is, they glow red hot when working, and the electric meter would spin itself off the wall.

John

slowcoach:
Hi Bogs, What about using a few peltier pumps. http://www.greenweld.co.uk/acatalog/Shop_Peltier_76.html

Rob :thumbup:

Bogstandard:
Rob,

Getting rather expensive for the size I want to do. A quickie calc comes out around 3,200 squid, plus maybe a bit of overkill.

I am looking for a KISS solution.

I was hoping someone would have a vivarium AND a low temp Sterling and maybe they could try it out for me.

John

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