dslreports logo
site
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
1949
share rss forum feed


Snakeoil
Ignore Button. The coward's feature.
Premium
join:2000-08-05
Mentor, OH
kudos:1

Candle-Powered Electric Candle

»www.instructables.com/id/Candle-···-Candle/

I stumbled upon this little project.

Though the question I have is why not just use a larger candle?
--
Is a person a failure for doing nothing? Or is he a failure for trying, and not succeeding at what he is attempting to do? What did you fail at today?.



Red_Menace
poking around since 1978

join:2001-11-03
Littleton, CO

I would just use a regular hurricane lamp, although I don't think it will do much good if the big one hits. ...or zombies.



SparkChaser
Premium
join:2000-06-06
Downingtown, PA
kudos:3
Reviews:
·Verizon FiOS
reply to Snakeoil

At first I thought it was stupid but after thinking about it it's still probably stupid but he is doing something.

He's getting the IR part of the tea light to generate electricity to make visible light. Now, TE's are notoriously inefficient but it is something.



Crash Gordon
Drive It Like You Stole It

join:2004-06-08
Smyrna, GA
reply to Snakeoil

Using a real candle to power a "fake" one kinda seems pointless to me (other than a proof-of-concept type thing). Just use a bigger candle or oil lamp and be done. Cool concept, just doesn't seem very practical.


garys_2k
Premium
join:2004-05-07
Farmington, MI

But it's more light for the same "amount" of candle. Making use of the thermal energy to convert it into useful light. I'm kinda' impressed.



Jason
Stowage Class Traveler
Premium,Mod
join:2001-01-24
38.2967 Lat
kudos:3

said by garys_2k:

But it's more light for the same "amount" of candle. Making use of the thermal energy to convert it into useful light. I'm kinda' impressed.

Actually, me too..

I have a few mid-size TEMs lying around.. this has got me thinking of how I can use them for some goofy thing like this.
--
When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.


dMarks
Melting Faces For Fun
Premium
join:2007-02-09
Jackson, MI
reply to Snakeoil

I read the article...and the first thing that came to mind after reading it all is...this is perfect survivalist material for someone who has some electrical / electronics background.

Let me give you a hint. Imagine, during an event that leaves you without electricity, you can still charge your battery-operated items. Some modifications and such would be needed, but this gives an indication of what is possible...on a small scale.

Seriously, it's far from stupid.

EDIT!!! That's if it does work. I've not tried it.
--
Windows 7 64 Professional|AMD FX 8150|Asus Crosshair Formula V Motherboard|8GB G.Skill Sniper Series 1866 DDR3 RAM|EVGA GTX560 Ti (Fermi) DS SuperClocked x2|Corsair CMPSU 850HX 850w Modular|Lian Li Lancool PC-K62 Case



SparkChaser
Premium
join:2000-06-06
Downingtown, PA
kudos:3
Reviews:
·Verizon FiOS

said by dMarks:

I read the article...and the first thing that came to mind after reading it all is...this is perfect survivalist material for someone who has some electrical / electronics background.

Let me give you a hint. Imagine, during an event that leaves you without electricity, you can still charge your battery-operated items. Some modifications and such would be needed, but this gives an indication of what is possible...on a small scale.

Seriously, it's far from stupid.

EDIT!!! That's if it does work. I've not tried it.

Forgive the stupid word, I've used it for years (more on myself than anyone) and get called on it. Perhaps foolish, silly, impractical would have been better.

As I tried to explain TE's have about an 8% efficiency, so unless you are picking up free heat from some thing, it's not the best answer to getting energy. If you do have a heat source that will be used in an emergency you can get enough to charge a battery.

»tegpower.com/pro8.htm.

Getting a couple of milliamps to light an LED is science fair stuff IMHO.

I'm working on a commercial product at the moment using a peltier module but not to light a house.
--
--
--
"Facts do not cease to exist because they are ignored." - Aldous Huxley

lutful
... of ideas
Premium
join:2005-06-16
Ottawa, ON
kudos:1

1 edit

1 recommendation

reply to SparkChaser

Click for full size
said by SparkChaser:

Now, TE's are notoriously inefficient but it is something.

Traditional thin-film bismuth teluride peltier modules used in such projects are about 6% efficient and they also can't handle very high temperatures. But they are low cost and allow generating a few watts to charge phones or power a book light.

I showed a TEG powered radio site in Alberta in »Re: Solar power . More robust BiTe TEG systems running on propane or LNG can provide upto 50W.

Some recent R&D thermoelectric generators (TEG) actually come close to 20% like silicon solar cells and can tolerate more than 300C on the hot side. GM is experimenting with them to replace alternators.

*** A Japanese company (TES New Energy) is commercializing such a TEG module.
»tes-ne.com/English/04_technology_e.html


SparkChaser
Premium
join:2000-06-06
Downingtown, PA
kudos:3
Reviews:
·Verizon FiOS

Thanks for the info, the highest I've seen was 11%. It's interesting that the have the technology to 20. I knew the temperature ranges.

What I was attempting to point out to those less familiar with the technology is that it's usefulness is more as a secondary device not a primary source.

For instance the Power Pot can be confusing. In just looking at the picture one might get the impression that someone is cooking with it. If fact they are cooking with propane and getting some electrical energy to charge a phone. Great for camping but I get the feeling some readers thought they were going to beat the thermo laws.
--
--
--
"Facts do not cease to exist because they are ignored." - Aldous Huxley


Kearnstd
Elf Wizard
Premium
join:2002-01-22
Mullica Hill, NJ
kudos:1
reply to Snakeoil

Isnt Curiosity running on a thermal-electric generator? I know its nuclear powered so guessing its somehow using the heat to directly create power.
--
[65 Arcanist]Filan(High Elf) Zone: Broadband Reports


public

join:2002-01-19
Santa Clara, CA

said by Kearnstd:

Isnt Curiosity running on a thermal-electric generator? I know its nuclear powered so guessing its somehow using the heat to directly create power.

Yes but the heat is also used to keep the vehicle warm.
Thermionic generators/coolers are potentially much more efficient than thermoelectrics.


ArthurS
Watch Those Blinking Lights
Premium
join:2000-10-28
Hamilton, ON

1 recommendation

reply to Snakeoil

Interesting device:
»www.leevalley.com/en/garden/page···=2,40731



J E F F
Whatta Ya Think About Dat?
Premium
join:2004-04-01
Kitchener, ON
kudos:1
Reviews:
·Rogers Portable ..
reply to Snakeoil

I actually saw a larger version of something similar like this. My first thought was "what the hell" but it looks impressive.

»www.leevalley.com/us/garden/page···&p=68887
--
If you can't explain it simply, you don't understand it well enough. - Albert Einstein



J E F F
Whatta Ya Think About Dat?
Premium
join:2004-04-01
Kitchener, ON
kudos:1
Reviews:
·Rogers Portable ..
reply to ArthurS

HA! I didn't see that...I posted the same one you posted, different page though....lol..I think you got the Canadian site, I got the US one.

This interesting thing, it produces the light output of 18 tea light candles out of 1 candle. It would be useful in an emergency if you're concerned about batteries.

--
If you can't explain it simply, you don't understand it well enough. - Albert Einstein

lutful
... of ideas
Premium
join:2005-06-16
Ottawa, ON
kudos:1

1 edit
reply to SparkChaser

said by SparkChaser:

they are cooking with propane and getting some electrical energy to charge a phone.

A few burning twigs are boiling water in this kettle and also charging the phone.

My interest in high efficiency thermo-electric conversion actually started when public See Profile mentioned the Topaz radioactive thermal reactor a few years ago.
»heating ideas for a cold winter

Expand your moderator at work