These new fridge magnets are also 35% more efficient at keeping your reminder notes and postcards stuck to door.

you should use Kelvin when you talk about temperature differences

I wonder why they have used solid magnets that they have to oscillate in preference to coils fed with AC current, which, unlike the oscillating solid magnet components, will not wear out.
If they can get it down in size to that shown at the end of the video, then all well and good. Failing that, there is no reason why something too big for the kitchen should not be located in the cellar and plumbed in to a kitchen fridge cabinet.
Also, there are the obvious heat pump applications of domestic heating and cooling. If the kitchen unit is plumbed in, these could be combined with the fridge application into one unit that extracted waste heat from the sink and bathroom, etc. as well as from ground water in order to heat the house or in air conditioning mode, the domestic hot water tank.

I agree wilth Mel RE, the application of this technology to AC for a small home or apt where only a 20 F difference between I/O of air flow works to cool a dwelling. There is still the cost of moving a volumn of air through the system.

MG127:
1 degree C = 1 degree K, so the temperature difference is the same in Kelvin and C.

So if I understand this correctly we still need a heat transfer fluid, but it does not have to be one that changes phases under pressure and heat - as the magnets are replacing this step and doing the cooling. Sounds good.

I see opportunities all over the place. In heating and cooling homes, in heating hot water. Why not standardize the fittings and make heat exchangers that can be used in ventilation ducts for heating and cooling, and for domestic hot water, as well as a refrigerator? Maybe even a stove? Think big guys, this is great work, and the opportunities abound if the energy savings and capacities can be realized! Congratulations. Time to cool a Champaign bottle!

There was no mention of the energy used, compared to a standard refrigerator. The same principal can be used with a propane flame, microwave or the standard compressor. It still takes energy to create heat. They are merely using the magnetic eddies to generate heat and alloys to cool down. I just loved the wash machine sound!

The GE presenter did a great job making the material easy to understand. I like his speech patterns and the mood and tone of his delivery.

Donwine,
It's right there in the first paragraph. "...predicted to be 20 to 30 percent more efficient that current technology."