[Stoves] Experiment in generating light using stove heat

[Crispin Pemberton-Pigott]

Dear Friends of Neat Heat

The provision of heat in remote areas is a long term human need. Getting electricity for basic needs is also a prime requirement.

Jeremy and I have been looking at ways to bring light from stoves (and heaters) using relatively low grade sources (below 180 C).

Attached is our experiment using a metal plate as the heat source, a very inexpensive booster, a USB ‎port and a high efficiency LED. The middle photo is illuminated by the output from the generator.

We are using a thermoelectric cooler running backwards. The cost of the three TEC's plus the 5 vdc booster and the HE-LED is about $7.50. The plan is to keep it as cheap as possible, and separate from the stove.

The input temperature can be up to 250 C and we used a pot of water to cool the other side. It lights up the LED bright enough that it requires cooling. We will stick it onto a small rectangle of aluminum sheet.

This choice of components is useful far beyond the provision of light because it was able to charge a BlackBerry Passport ‎and a dual lens infrared camera. We also successfully tried an AAA battery charger. ‎

Regards
Crispin

__._,_.___
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20170212/abf718cd/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_20170212_100032.jpg
Type: image/jpg
Size: 133962 bytes
Desc: IMG_20170212_100032.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20170212/abf718cd/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_20170212_100112.jpg
Type: image/jpg
Size: 104519 bytes
Desc: IMG_20170212_100112.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20170212/abf718cd/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_20170212_102601.jpg
Type: image/jpg
Size: 107564 bytes
Desc: IMG_20170212_102601.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20170212/abf718cd/attachment-0002.jpg>