flare pans - more efficient pans complimentary to more efficient stoves

I thought the group might find this interesting. Improving the pan efficiency is complimentary to improving stove efficiency.

http://techpageone.dell.com/downtime/flare-pans-a-faster-greener-way-to-boil-liquids/#.VE-DkfnF-xU

"With conventional pans, a significant amount of heat disperses into the air, causing energy to be lost. But the Flare pan uses technology that is often found in jet engines. Fins on the sides of the pan capture heat that would otherwise be lost. This is known as FIN-X technology and helps distribute heat evenly. This technology allows for heat transfer to happen quicker without using as much energy.

First designed for outdoor use during camping trips, the Flare pan could also be suitable for indoor cooking, Povey discovered.

“We realized it was a problem that applies to the domestic market,” he told the Telegraph. “So we worked from there.”



When camping with my alcohol stove, I already use a pan with heat collection fins on the bottom that greatly increases efficiency of the stove.

http://www.amazon.com/Olicamp-Hard-Anodized-XTS-1-Litre/dp/B007OJKI2U/ref=sr_1_1?ie=UTF8&qid=1414498271&sr=8-1&keywords=olicamp+xts

I am seeing more of these heat collecting pans in the camping gear scene, and I bet they would be just as effective on the top of a rocket stove.

It might be worth noting that these types of pans are probably only more efficient with an open flame stove, where the hot air is moving past the pan. They probably won't be as efficient with an electric stove, or hot plate, such as the top barrel of a RMH or wood stove. In that case, greater contact surface area probably counts for more. This is just my guess.

I found flare pans commercially available here:

http://www.lakeland.co.uk/brands/flare?intcmp=INTSRCH:flare%20pans

Douglas S. : I have used the second model and like it very much, and do think there may be potential for the second model will what I would call turbulator ,
but will probably sell better as 'Flare pans'

Both of these units were never designed for exposure to the combination of freakishly high temps, and flood of BTUs that you have to deal with with any
solid fuel fire !

The best way to achieve a good even cooking temperature is still to ''let it burn down to coals''.

The best adaptation for capturing all of the btus of heat is with a final skirt that provides a 1mm to 2mm skirt gap to force the hot exhaust stream past the
side walls of the pot increasing the contact area !

Three examples, 1)The industrial cooking stoves made by the fine folks at aprovecho.org! 2)Various models of 1950s recessed Burners that sat underneath
deep well pot shells and heated a mated pot or pots! There where engineering issues and overheating problems that cooked the wiring of the early models
that 50's technology was not ready to solve. Later the idea was revived with recessed stovetop "Fry Baskets'' during a period when making 'southern-fried'
chicken was one of the signs of a good cook, however dedicating that much Stovetop space for a not frequently used specialty burner did not sell well with
the '' June Cleavers '' of America !

A picture is worth a thousand words, at the bottom of this page find :::--> permies >> forums >> energy >> rocket stoves click on
rocket stoves

On the Rocket stoves / rocket mass heater forum page, find and click on the Forum/Thread

Rocket Stove Hot Water Heater for Outdoor Wood Fired Hot Tub then scroll down to the second picture ! For the Good of the crafts ! Big AL !

FYI, I got this email back from Sam Bentson over at Approvecho. Looks like it's a pot with it's own skirt built in.

Hi Douglas,

Thanks for sending this. We have done tests with finned pots before on wood stoves and the gains are not noticeable. There is also a problem of the fins becoming clogged with the tar from the wood smoke.

I think you are right that the pots you have found are designed for gas stoves. Have you seen our super pot? It increases fuel efficiency of wood stoves by about 30%

http://stovetecstore.net/product/stovetec-super-pot/

Take care,

Sam

Douglas S. : I had not seen that model, It looks extremely effective, I think I would want to see a 2 piece model that was easier to clean, I Expect that
that pot might save gas when used over a gas burner, and if you were traveling and stopping at campgrounds with the kind of metal fire places with
raisable grates, or even had the use of tin can style Rocket stoves, this might have some daily use !

The current Stove-tec offering is a little high tech, and therefor needlessly expensive, though it probably sells well with the BMW driving Preppers/Zombie
hunters preparing now for Armageddon !

This is merely a spun-off enterprise of Aprovecho who have created several types, styles, and sizes of other cook stove replacements for the Horrible
3-rock fires that 40% of the 9 billion people on the planet still use for cooking and water for sanitation!

It seems like the different branches rarely talk to each other and there is no institutional Memory left. Even though I say that, I wish the very best for them
Good work is being done ! for the Good of the Crafts! Big AL

Consider this a late contribution to this thread... if the StoveTec SuperPot is too fancy for your tastes, here's how to make your own diy super pot.