What Is It?

A 6 cylinder rotary engine.

give me an application

Hyperloop fan.

A small aircraft.

actually it is in fact a refrigeration compressor that doesn't use any type of Freon, it uses magnetism. the developers say the ROI is 3 years, we'll see

http://www.gizmag.com/cooltech-commercial-magnetic-cooling/43874/?utm_source=Gizmag+Subscribers&utm_campaign=38aa9c7aa8-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-38aa9c7aa8-90360106

Very interesting. Thanks!

you are quite welcome

Dang - I was about to say that. Not really. I was expecting that the side port had a UV bulb or some such thing hooked to it. Very good. Now that is a subject to talk about and will not devolve into a discussion of political candidates.

if the dollars are right it will change everything........remember a fridge is working around the clock, most loads are far less frequent, upping deficiency nationwide has big energy implications

https://youtu.be/7CNiE1lGubo this explains the exciting principle

I only saw history, no explanation of how it works. The first part of SolarEagle's link is a much better start at understanding how it works.

This is really interesting! I started working on microwave ovens around 1961, and ever since, I've thought: "when will somebody come up with a similar thing for cooling?" This is the closest I've seen...

Agreed. For a start, what does the compressor do?

Also I'm not impressed by the picture. On the Hot side, it shows the hot air going back into the fan suction, when it should obviously be discharged elsewhere.

As I understand it, there is no compressor. There are one or more rotary devices that move the special magnetocaloric materials into and out of strong magnetic fields, two sets of heat transfer devices (one for heat in and one for heat out), which may or may not contain moving parts, and one or two pumps to move the heat heat transfer fluid (supposedly water) from the heat transfer devices to the radiators.

My suspicion is that the first rotary devices must move in an intermittent/stepped mode, moving quickly into and out of the magnetic fields to produce the temperature changes, then pausing while the heat transfers into and out of the magnetocaloric materials. I can also imagine the heat transfer system moving into contact with the magnetocaloric materials for contact heat tansfer during the pause, then moving away for the next motion step, since non-contact heat transfer is very inefficient at small temperature deltas. This is all conjecture! The motions I've described would tend to be noisy, so considerable effort would have to be expended to avoid jerk. As I recall, they indicated 35dB noise level, which is pretty good.

https://www.youtube.com/watch?v=uDF_COU1OJI

at the 4 minute mark It will be explained in simple speak

Thanks for that link! It pretty much confirms what I had suspected/conjectured.

Now, It seems conceivable that the same principles could be used with electromagnets, thereby eliminating all the moving parts except the water pumps.

the new material is the whole key, the magnetism just kicks its properties on, SUPER cool!

But didn't you say in #6 the what is it? is a compressor?

it compresses NOTHING, that's why its totally different

Then it's misleading to call it a compressor, even though it performs an analogous function.

Well, I'd certainly agree with you that a compressor that doesn't compress anything is totally different

the principle is different and I think better, either way its the heart of the refrigeration system

Compressors that don't compress anything are nothing new !

I've had one for years -

I think the starter is faulty.

I'll get round to fixing it one day.

Rotary hydraulic pump...

The explanations given in the links are mostly verbal, where for me with age related loss of hearing in the speech range, it is nigh on impossible to make out what is being said.

And in common with lots of these links, the narrators like the sound of their own voices, usually talking a lot without telling us anything.

If your picture is a 'motor' for a magnetic fridge, what is, in as few words as possible, the principle of cooling it uses?

It looks to me as though it is magnetohydrodynamic power generation in reverse, so to speak.

I get your point. I guess since I've been working on commercial AC since the early 80's I just see things differently, it made complete sense to me the first look

"magnetohydrodynamic power generation in reverse"

I don't think so. MHD requires a conductive fluid, while this system supposedly uses only water as a heat transfer medium. See my previous post for my conjecture.

"magnetohydrodynamic power generation in reverse"

I don't think so. MHD requires an electrically conductive fluid, while supposedly the fluid in these devices is just water for heat transfer. To avoid corrosion, that water would probably be de-ionized water, most likely with an antifreeze.

See my previous posts for more conjecture.

After enlarging and further studying their diagram, I interpret the following: The device in the center is both a motor and a pair of pumps. You have to look very closely to see that the hot fluid circulates clockwise, while the cold fluid circulates counter-clockwise, so there are two fluid loops, not one, as it appears at first glance. Although the descriptions I've seen describe moving the MagnetoCaloric Material into and out of magnetic fields, this unit does the opposite: it moves the magnets. By keeping the MCM stationary, they can pump the water directly through hollow MCM, eliminating the need for moving something into and out of thermal contact that I described in an earlier post, and possibly eliminating the need for the intermittent motion I was visualizing.

The light horizontal bar in their drawing represents a shaft that connects the motor to and rotates the magnets (2 down on the left, 2 up on the right). In practice, I suspect that there are either 12 or 24 magnets, with appropriate pole pieces joining each pair of magnets.

Before this Gizmag article, I don't recall having been aware of MagnetoCaloric Materials. This is all coming together pretty well in my mind. There is no compressor, no significant pressure, and of course no phase-change fluid, so it is inherently a pretty safe and environmentally friendly system, except for the materials used to make the magnets.