When it comes to machines and hardware, as advancements move forward, heat generation is still a big issue for big companies. Needless to say, if unaddressed, it can become a massive issue for data centres.
The answer to this is the immersion cooling. It is a sort of liquid cooling that is used to moderate data centre equipment temperature by submerging it in a cooling fluid. The server immersion cooling assists in dissipating heat and keeps the components, like CPUs, performing optimally.
There are measures like the rack load bank which can help address the issue of overheating. Let us take a deep look at immersion cooling in data centres.
Single-phase immersion cooling
In single-phase immersion cooling, heat from the immersed server parts is transferred directly to the surrounding fluid. However, the dielectric fluid does not undergo a phase change from a liquid to a gas.
Instead, the fluid is cycled out of the immersion tank by a coolant pump that runs through a heat exchanger and is returned to the immersion tank at a lower temperature, where it continues the heat transfer cycle.
Two-phase immersion cooling
In the two-phase immersion cooling, the heat from the immersed server components causes the special immersion fluid to boil. The resulting steam heats a condenser coil on top of the sealed chamber.
The coolant in the condenser coil is cycled out of the chamber to heat rejection mechanics; then, the coolant is sent back to the sealed chamber at a lower temperature to continue the heat transfer cycle.
One of the key elements of this kind of immersion cooling tank is the low boiling point of the immersion fluid. However, one of the key complaints of two-phase cooling is the sealing functionality of the immersion chamber.
Immersion cooling: the fluid
The reason immersion cooling is more efficient than air cloning is because of the fluid. The liquid is the key to how the heat is conducted. The choice of liquid is fundamental if the total benefits of immersion cooling are to be achieved.
The dielectric fluids are generally based on hydrocarbon compounds. The compounds can be from vegetable oils, mineral oils, fluorocarbons or other synthetic fluids. These liquids are classified based on whether they are used within single-phase or two-phase immersion cooling.
The space requirements
The space needed for immersion cooling system setups is also considerable, demanding dedicated areas with appropriate infrastructure. Safe transportable measures and lifting devices are also needed because the racks generally run horizontally inside tanks rather than vertically, and the servers have to be lifted in or out of the tanks for maintenance and replacement.
With the arrangement of data center rack load bank, the space needs are very reasonable.
It enhances the rack density
An average or fully populated data centre cabinet stores from 5 to 7 kW worth of server computing. Alternatively, fully populated immersion racks might hold over 380 kW of computing.
The safe computing density advantages that come from liquid immersion cooling solutions cannot be disputed. Not to mention, the immersion tanks can be installed anywhere with a proper network hookup.
Wrapping Up
The damnd of computing power, higher server rack density, and heat removal are continuously trending upward. Consider the load bank heat simulation for the best experience on the company premises.
