Okay, so probably more efficient electronics and power grids, MRI machines without helium, probably easier maglev tech, …?

58 points
*

Ok, I see a lot of false info in here. EE chiming in here.

Minor efficiency improvements: consumer electronics, batteries, solar panels, CPUs/GPUs

Major efficiency improvements: power transmission, wireless power transmission, electric motors, high density electro-magnets (used in fusion, MRI, etc), ‘traditional’ energy generation techniques that spin a thing to produce electricity (wind, nuclear, hydro, gas, (even coal, but let’s pretend coal doesn’t exist)).

Outside of my expertise, but I’m speculating major improvements: wired and wireless data transmission (antenna tech)

The implications that excite me the most are mostly around transportation.

-Realistically, of existing technologies I think electric motors are the biggest winner with superconductors. For the most part, the size and power of electric motors are constrained by how to get the electrical waste heat out. With superconductors you don’t have electrical waste heat. You can create incredibly small, powerful, efficient electric motors with super conductors. This means efficiency gains in so many of our big ‘energy sinks’ right now. Transportation, air conditioning, manufacturing… I mean it would be a largely unnoticed improvement to almost every aspect of our modern lives.

-Cars with close to 100% regenerative braking (superconductors+capacitors for temporary energy storage) You could stop at a red light and accelerate back to the same speed ‘for net-zero energy’. THAT IS BANANAS! A current conventional gas car burns fuel for ~30% efficiency, the other 70% is waste heat. Then after you’ve done all that inefficient work to get moving you hit the brakes and USE FRICTION TO TURN YOUR MOMENTUM INTO MORE WASTE HEAT! Bugs the bajesus out of me! Superconductors would make it much more practical to recoup energy when stopping a vehicle.

Then you can get into cool new technologies:

-Mag-Lev trains would be super cool. I don’t see a huge practical benefit since the mechanics of train wheels on rails are pretty efficient as is, but come on… levitating trains? so cool!

-Rail gun style space launch systems (unfortunately, this comes with rail gun style weapons too, sorry everybody!)

-Tokamak nuclear fusion reactors are currently constrained by the strength of the magnetic fields they can produce using electromagnets. The limiting factor is largely cooling for these electromagnets and the associated superconductors. Room temp superconductors allows for much more compact designs for the magnetic confinement infrastructure used in these facilities.

-You could make a friggin mag-lev skate park. Hoverboards! REAL FRIGGIN HOVERBOARDS could be produced!

-(I think) We can actually start talking about ‘active support’ structures. Buildings that would not be possible because of the compressive or tensile strength of known materials can be supplemented by active support through electromagnets!

-This removes probably the biggest constraint in electrical engineering and design. We will see amazing technology come out of this that none of us can predict.

EDIT (I’m just gonna keep adding these as they get mentioned elsewhere):

-Magnetic energy storage. Similar to how an electrical transformer works: You induce a current to flow which ‘stores’ the energy in a magnetic field. In the case of magnetic energy storage you just leave that current flowing. No resistance means it will flow indefinitely. You can then extract it directly or through interaction with the magnetic field.

permalink
report
reply
8 points

Only major thing you didn’t mention that I noticed is applications for quantum locking. From my understanding, superconductors would allow us to make frictionless, lubricationless “ball” bearings

permalink
report
parent
reply
1 point

How much force can one of these locks take without slipping?

permalink
report
parent
reply
3 points

You touched on regenerative breaks, but what about for EV’s with power management? Will we see longer ranges on the same platform due to needing less power from the battery or is that going to require a full redesign

permalink
report
parent
reply
6 points
*

You certainly would see longer ranges for the same battery if you just swapped the cabling and motor over to superconducting versions, but there are kind of two scenarios at play here.

You have highway driving where a lot of your losses are mechanical due to high sustained speeds (air resistance and friction). Those wouldn’t go away, but your “electrical to mechanical” losses would be reduced, so you’d see modest improvements.

Then you have around town driving where your losses from accelerating and decelerating are much larger than the mechanical losses (air resistance and friction). Here with proper design changes I think you would see spectacular improvements in efficiency.

Unfortunately, this doesn’t help much with the EV ‘range anxiety’ issue haha. Go figure.

permalink
report
parent
reply
3 points

I don’t have range anxiety lol. I think once most people get in an EV they would realize the anxiety isn’t needed. But seeing the boosts to range does help with that anxiety. I’ve been watching this and the solid state battery tech for a bit now. I’m not an expert in either but I feel like with solid state batteries finally hitting the market and now this, driving could be revolutionized in less than 10 years

permalink
report
parent
reply
39 points

Anything electric would be dramatically improved. Electric car range, consumer devices like computers and phones would have a huge jump in efficiency, etc. You name it basically.

permalink
report
reply
19 points
*

In theory, the cost of getting an MRI would come way down due to not having to keep the coils crazy cold. In practice, we have capitalism, so it’ll probably go up

permalink
report
reply
3 points

In practice, the medical market is one of the most heavily regulated in history. We definitely don’t have capitalism in medicine.

If we did, prices would go way down.

permalink
report
parent
reply
17 points

Having a conductor with zero resistance allows to transmit (regenerative) power from where it can be generated for free (solar in the desert) all across to where it is needed without loosing any power on this way.

permalink
report
reply
17 points

The potential for tech miniaturization alone is a massive deal.

Right now, one of the biggest obstacles toward packing more transistors into a given space is the fact that they radiate a shit ton of heat which must be removed by close to immediate contact with the heat sink.

Without the need to deal with a shit ton of waste heat, instead of only having one, or only a couple layers of transistors in a processor, you can stack that shit high. Volumetric processing. Instead of wider chips, we could have taller chips. Hell we could stop calling them chips, and start calling them blocks!

If our processors could be as dense vertically as they are horizontally, we would see entire orders of magnitude more processing power, and, because a lot of energy is not being lost to heat, it’s actually being used productively. Or in other words, you need less energy and yet can accomplish even more work.

permalink
report
reply
16 points

The overwhelming majority of the heat from processors is not from resistive power dissipation, it’s from transistors switching state. This will not go away because of superconductors.

permalink
report
parent
reply
4 points

I read in another comment somewhere that introducing a superconductor wouldn’t change the properties of the semiconductor bits. So the transistors themselves would still produce heat. But there are also full-conductor bits that produce heat that might be eliminated.

permalink
report
parent
reply

Asklemmy

!asklemmy@lemmy.ml

Create post

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it’s welcome here!

  1. Open-ended question
  2. Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
  3. Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
  4. Not ad nauseam inducing: please make sure it is a question that would be new to most members
  5. An actual topic of discussion

Looking for support?

Looking for a community?

Icon by @Double_A@discuss.tchncs.de

Community stats

  • 9.7K

    Monthly active users

  • 5.5K

    Posts

  • 301K

    Comments