New thermoelectric cooler invention hits the market.

[317537]

The solid state device can pump up to 1.5 W of heat at 85°C and operates at a maximum 2.7 V with a maximum current of around 1 A and achieve up to 60deg c cooling.

What? Pumps 1.5w of heat @ 2.7watts? Is that 55% efficiency?

PDF is here!

http://www.mouser.com/ds/2/292/Nextreme_OptoCooler_HV14_Data_Sheet-3989.pdf

eTEC™ HV14 Thin-Film Thermoelectric Cooler

Features:

1.7 watts maximum cooling @ 85°C
•
110 W/cm
2
heat pumping capability
•
Small 1.52mm X 1.79mm footprint

Ultra fast response and very small too.

@110w/cm2 I think this is a third of what a good refrigerator would do, but the weight factor is almost making this invention practical for Ebike motor cooling, and worth while for cooling controllers. If you can dump all of the heat on the hotside including the pumped heat using traditional passive cooling, they should cool things down on the cold side nice and save some power. They only have to switch on during peak bursts. To maintain a cool temperature should be easier and less harfull than correcting excessive heat build up.

I wonder how the Seedbeck effect works on these? You could fit a few hundred of these on the back of a large solar panel. Run a small fan for the cold side and with a blocking diode to stop the PV powering this on and wasting energy, it should produce extra energy. Another 55% of thermal conversion of wasted light and heat should be handy.

As a comparison. I'll put up this plain-Jane 15.4v @15A 230watt Peltier.

http://www.farnell.com/datasheets/1693149.pdf


Qmax running @130w Plain-Jane Peltier is 130W (W/cm2)
Tmax @ 68°C Really @ 230 watts consumption. 15A Imax * 15.4Vmax = 231 watts. This peltier runs @ 12v 10 amps and seems they pushed it beyond its ability to get better numbers.

Vs

Qmax running the new thin film tech @2w is 90w (W/cm)
Tmax is 45ºC


Correct me if I am wrong but it appears the little 2 watter is out performing the larger device by miles.

 

[Sunder]

When this becomes cheap/easily available, people will be using it to over clock computers again.

Hell, it might start coming stock standard with high end CPUs. One of the biggest limitations with growing computing power now, is how to remove the heat.

 

[Toorbough ULL-Zeveigh]

and leslie's back.

read this.

One of the biggest limitations with growing computing power now, is how to remove the heat

that's why the big push is on to make the total switchover to Ge with it's inherently lower barrier potential before the decade is out, potentially even bypassing SiC.
just like with batteries the key to eliminating unwanted heat is not to generate it in the first place.

 

[317537]

Why thank you for your replies.

Recheck those figures, I funked up the formatting in the op. Copy paste didnt work so well.

Well an Aussie team made a transistor out of a phosphorus atom. Old news. Size does count as well in computing, the or lack of it.

Whats next nano vacuum tubes?

 

[317537]

BTW how hot does my motor get? OMG 1000 degrees. A motor is well within a pelter capabilities if your windings are in spec and phat enough to carry the current..

You know how cold those things can get?

 

[317537]

To even suggest putting a gas tank and spraying it on the wheel for cooling, now theres a snap idea!

Well! What if you believe in cryoteching hardware, and keeping it cold, super conductors, and single layer solar panels that can break the 33.7% theoretical efficiency and a future where we wont even need that noisy motor.

[youtube]oUHUV8dx8Mw[/youtube]

This silly fello (not) has a fan, some nice leds lights and if he designed his device better the light from the candle. Two light for the price of one. It cools itself even.


Right what is a solar panel worth at open voltages, well its the same thing but the load has to be harder.
and how hot can your controller get. See in the youtube video, there is band gaps to be gained f you know your shit using just utter wasted heat to get the right balance, they will pump heat in lots of conditions, in this way a device can cool itself or better if you add a little power, to the fan, a water pump, Anyway..

 

[317537]

And Leslie is back again.

[youtube]mHqqHZsU4k0[/youtube]

The amount of cooling the difference between hot and cold water can supply.

In this case, heat is still being moved as of the indication of current and energy seen in the fans. No added energy needs to be applied so no extra heat is made from using a peltier.. It must cool that water faster as the power runs out.

The most efficient cooling system is one that can cool it self from its own power.

IMO it works a bit like a Bedini motor the use power from the bottom battery causes the motor to turn which rides the charge over to the top series battery. A little energy is lost in maintaining momentum of the wheel of the Bedini the rest is transferred, it is an efficient device for what its worth. The peltier in this configuration is using heat like a water wheel uses gravity.

The peltier ceramic surface with no power is cold to the touch and will absorb heat very well and shed it through the peltier fast enough to turn 6 motors and provide its own cooling. They use ceramic in cook tops and fast heat transferral.

 

[317537]

How cool is this. Candle power is going places.

[youtube]7oLs0gP4ae4[/youtube]

 

[oldpiper]

Thanks, Leslie,

I might be able to use this (although not in my electric bike), much better than a plain old Peltier, as you say. Only wish I could get it bigger, like a cm^2 or two.

Cameron