World’s first large-scale ‘sand battery’ goes online in Finland

Sand doesn't move heat to the surface via convection.

I don't understand.
How good of an insulator is it? Doesn't it still lose energy over time?

>using an acronym without expanding it first

Attached: 1637456918531.png (448x428, 211.1K)

What is it a thermal mass?

It stores enough energy to work long enough during winter months despite small losses.

clip studio paint

The article says its heated from renewable energy and then used in a district heating system, but how?

It's a giant pile of hot as fuck sand. You heat it up with electricity and then use the heat in the winter for...heating.

wikiless.org/wiki/Superheating?lang=en

You put a metal rod in hot sand and this shit heats up water that goes into your home?

Pass it through a heat exchanger to get hot water.

Not stable, retard. We are talking about real life systems designed to not explode.

yes
>Doesn't it still lose energy over time?
I'm sure it does but the more they scale it up the less losses it should have.
Storing heat isn't that hard really especially when you go big.

Yeah but this means they need to run giant insulated water pipes to every building. Many countries can't even do waste water recovery.

All you need is pressure. Do you know how cooling systems in cars work?

Yeah, that's what district heating means. It's widely used in Europe.

>sometimes referred to as boiling retardation
sick insult, thanks user

>all you need is to spend extra thousands of dollars on a system that can explode

You can use cheap sand instead, mong.

stop tripfagging outside of Any Forums
hell stop tripfagging there you barely even lift

Why not phase change material?

>things filthy Americans don't have

>system that can explode
Don't be a tard.
>You can use cheap sand instead, mong.
I'm simply pointing out that your were wrong, not the best solution.

Let me guess, low cost of the fucking sand?

Water is a shit solution due to convection.

>don't have
We have them in some places but most that tried them ended up dismantling them. Outside of urban cores with dense commercial space it becomes ridiculously expensive.

low cost of sand doesn't matter, the construction costs of the facility dominate everything. If we want to use the facility the most efficiently, we need the material be the most efficient, so reducing the volume of material needed, and so the count of facilities needed.

So, why not phase change material? It is orders of magnitude has more capacity of storing energy.

Minorities in USA switched from mugging trains to stealing sand now?

>doesn't move heat to the surface via convection.
Isn't that a disadvantage?

When you store heat in a hot water tank you can have hot water at the top and the cold water at the bottom.
The more heat you store the bigger the % of hot water vs cold water.
But even when you only have a little bit of heat stored, say 5% of the tank is hot and 95% is cold, you can still get nice hot water by tapping off the top.

Attached: big.jpg (161x300, 17.93K)

Convection is good if one wants to transfer energy.

>If we want to use the facility the most efficiently
We don't. It has to be cheap and it has to work.
Bloody armchair communist planners...