3 ms·
1 cubic meters of water chilled 10C below ambient is 40MegaJoules of energy. Or in other words: 11kW-hrs of cooling, comparable to an entire Tesla Powerwall.
by dragontamer 3y ago
1 cubic meters of water chilled 10C below ambient is 40MegaJoules of energy.
Or in other words: 11kW-hrs of cooling, comparable to an entire Tesla Powerwall.
We aren't talking about entire swimming pools here. Just a few cubic meters of water. Shift the temperature delta as you see fit but... It's actually very space efficient.
- pi-e-sigma 3y agoTypical residential air conditioning is using 4kW of power. So your 40MJ of energy would be used up in 40MJ/4kW=10000 seconds, or just 3 hours. And its only theoretical, because it assumes 100% efficiency in storage and conversion
- llm_trw 3y agoIt's odd how often battery enthusiasts don't understand the difference between energy and power.
- nimos 3y agoAir conditioners have a COP of about 3 though. So really its more like 3.5kwh of storage. If you want to go lower temperature to store more then your COP drops.
- dragontamer 3y agoThe temperature delta is the hard part for me to estimate here. I know that IceBear left the water around 45F, so take that for what you will. Either way, we aren't talking about entire swimming pools here. Just a small, single digit number of cubic meters of water.