Closed loop watercooling is really just air cooling with extra steps. The water is heated by the devices and cooled by a large radiator with fans. Or it’s cooled with a chiller which in turn is cooled by a radiator with fans.
Replacing the water is the most effective (yet wasteful) way to remove the heat.
I once saw a spa that was using a liquid cooled bank of computers to heat their pool water. It involves a liquid-to-liquid heat exchanger so they’re not pumping chlorinated pool water through their servers but…I wish we did more of that. Server farms are a source of heat, lots of other things need heat.
To a point, yes. While you’re still using air to cool the water, I think it’s still a little more efficient than blindly keeping the server room at a low-ish temperature.
Keeping the server room cool is just using an air conditioner which is cooled by a radiator with a fan, and then using that cooled air to cool another radiator with a fan. Every step is a loss of efficiency.
The main advantage of water loops is that you get to use a different form factor for the radiator and fan by moving it away from the source of heat and aren’t limited by the case dimensions.
Closed loop watercooling is really just air cooling with extra steps. The water is heated by the devices and cooled by a large radiator with fans. Or it’s cooled with a chiller which in turn is cooled by a radiator with fans.
Replacing the water is the most effective (yet wasteful) way to remove the heat.
I once saw a spa that was using a liquid cooled bank of computers to heat their pool water. It involves a liquid-to-liquid heat exchanger so they’re not pumping chlorinated pool water through their servers but…I wish we did more of that. Server farms are a source of heat, lots of other things need heat.
To a point, yes. While you’re still using air to cool the water, I think it’s still a little more efficient than blindly keeping the server room at a low-ish temperature.
Keeping the server room cool is just using an air conditioner which is cooled by a radiator with a fan, and then using that cooled air to cool another radiator with a fan. Every step is a loss of efficiency.
The main advantage of water loops is that you get to use a different form factor for the radiator and fan by moving it away from the source of heat and aren’t limited by the case dimensions.