peltier effect fridge

[jazzy4me4eva]

lol is that out of a dick smith cooler ?

[Unasigad]

@talldude6 I am planning to make a model like you did but should the hot side be facing the up?

Thanks

[WARGIRLWARGIRL]

Can you tell me hoe can I make one for my CPU?

[F4SOLD]

@talldude6

I have a question.. I recently got a peltier unit with 37W and 3.9A at max..i wanted to use it for a small fridge, but even though i have a heatsink,. in a matter of a few minutes the cold side becomes a little above the room temperatue, i would liuke to know what you did for yours to work like that :)

[folken692000]

What's the wattage of this TEC?

[talldude6]

@folken692000 50W

[inkisicao]

@folken692000

hi,

can one peltier 3,1W do the same effect? (max 7V and 3,1A)

thanks

[stdavross666]

4 amp @ 12 inefficient piece of shit.

[vmelkon]

How cold can it get? -25C? -50C?

[gjaeigjiajeg]

Thanks for the video. Can you tell me the peltier's power rating? And also how big (actual dimensions, please =P) was the heat sink you were using?

[Alexvideoclip]

OMG, I was kidding, you guys don't have any sense of humor !

[Alexvideoclip]

We could use it to reduce earth's global warming !

[sergi5122]

the other side of the peltier is hot enough to burn the skin, and it consumes a crapload of power(at least 65 watts for the piece shown in video)

so it will only make things worse.

[Alexvideoclip]

LOL, I was jocking.

But, they can be used to convert heat into electricity (as they do in space probes, transforming the heat from uranium fuel  into electricity)

[Slovenec5]

it uses electricity... a LOT of it

[t1mmy13]

no you can't.

[KileSimons]

Sarcasm doesn't work on the Internet

[t1mmy13]

gonna make one for my pc

[dodoshlodo]

amp draw??

[talldude6]

approximately 4 amps at 12v D.C.

[dodoshlodo]

48 watts,

thats not bad, i wanna make a cooler!

[rtwman57]

What is the part number of the Peltier device you demonstrate?

[speedsk8r010]

So uhh.. how exactly do you power a peltier.. dont you need some special type of power converter thing?

[talldude6]

no nothing special at all.... i used a computer power supply for the peltier in this video as they can supply up to 8 Amps or more thesedays at 12V D.C. .... but you could use a car battery also... thats why the "coler / warmers" that shops are selling work in cars as they are just a single peltier attached to a metal jacket and heatsink... i should know my peltiers come from them...

[speedsk8r010]

Huzza, yes but peltiers only consume electricity, there is no need for gasses, thus if you got all your electricity from a renewable resource (wind/solar) peltiers would be more environmentally friendly due to the fact that compresses use gas which is toxic :]

[talldude6]

exactly what i was trying to say!! no nasty gasses being manufactured/consumed or even let out int the atmosphere!! and they do work really well i have a "commercial" bar fridge which uses two peltiers back to back and it would use only as much as a clock radio in juice....

[superpotential]

yes, BUT not until you have a renewable source. until then, you're causing more gases to be emitted by the power plant by using it.

Peltiers can be effective and fast but are *extremely* inefficient, they emit MUCH more heat than they transfer.

[talldude6]

well of course they emit more heat... there is inefficiencies in all equipment and that inefficiency is usually heat...

[Grak70]

A compressor fridge would still be more environmentally sound because watt for watt, a compressor consumes much less electricity than a peltier cooler. That electricity has to come from somewhere and will probably come from coal or gas. So yes, peltier coolers are great for low weight applications, but they suck for energy efficiency. Interestingly, it's very difficult and inefficient to build a micro-compressor for a cooling system. So there's a solution for both extremes.

[travisthetwat]

Why would we ever have them in our home refrigerator? Pelts, handy as they are in portable fridges, are not as energy efficient as a compressor fridge, which isn't really what I call environmentally friendly.

[talldude6]

well both options are still a heat pump... and they both consume electricity unless you use gas or kero... as for efficiencey yeah the compressor fridge is more efficient BUT how are you looking at the environmentally friendly part in terms of carbon dioxide or cfc's? because when a peltier effect fridge is at the end of its servicable life will realese no hamful gasses unlike a CFC filled fridge!!