Absorption/desorption processes and systems for liquid immersion cooling
A two-phase liquid immersion cooling system is described in which heat generating computer components cause a dielectric fluid in its liquid phase to vaporize. Advantageously an absorption/desorption unit is employed having a carbon element and a controller configured to regulate the absorption unit.
1. A system comprising: a tank, wherein the tank is configured to hold a liquid phase and a gas phase of a fluid; a structure within the tank configured to hold one or more computer components to be at least partially submerged within the liquid phase of the fluid during an operation of the system; an absorption unit including a carbon element; and a controller configured to regulate the absorption unit, and wherein the absorption unit includes: a housing; an air intake; an air output; a vapor intake; and a vapor output.
2. The system of claim 1 , wherein:
the housing includes a plurality of tubes;
the vapor intake is coupled to the vapor output using the plurality of tubes; and
each tube is configured to pass incoming vapor from the vapor intake to the vapor output.
3. The system of claim 2 , wherein the air intake is coupled to the air output using the housing.
4. The system of claim 3 , wherein the vapor intake, the vapor output, the air intake, the air output and the plurality of tubes are configured such that the housing includes two separate channels for guiding fluids through the housing:
a first channel for the incoming vapor, wherein the vapor intake is configured to provide the incoming vapor through the plurality of tubes to the vapor output; and
a second channel for the incoming air, wherein the air intake is configured flow the incoming air outside of the plurality of tubes to the air output.
5. The system of claim 4 , wherein an inside of each of the plurality of tubes is coated with a layer of carbon.
6. The system of claim 5 , wherein the layer of carbon is configured to absorb the incoming vapor.
7. The system of claim 6 , wherein the layer of carbon is configured to desorb vapor in response to receiving heat.
8. The system of claim 1 , further comprising an air pump, a heater and a 4-way valve.
9. The system of claim 8 , wherein the 4-way valve is connected to:
an air filter;
an exhaust pipe;
the air pump; and
the air output.
10. The system of claim 9 , wherein the air pump is connected to the air intake through the heater.
11. The system of claim 10 , wherein the air pump is configured to draw an incoming air from the air filter through the 4-way valve and pass the incoming air through the heater and to the air intake.
12. The system of claim 11 , wherein the controller is configured to regulate the heater to raise the temperature of the housing.
13. The system of claim 10 , wherein the controller is configured to operate the 4-way valve such that the air pump draws an incoming air from the air filter or the air output.
14. The system of claim 10 , wherein the controller is configured to operate the 4-way valve such that air is released from the air output through the exhaust pipe in the event of an emergency.
15. The system of claim 14 , further comprising a pressure sensor.
16. The system of claim 15 , wherein the controller is configured to detect the emergency if the pressure sensor indicates an internal pressure within the housing that exceeds a threshold.
17. The system of claim 1 , further comprising a vapor emergency release.
18. The system of claim 17 , wherein the vapor emergency release includes a valve configured to release an incoming vapor in the event of an emergency.
19. The system of claim 1 , wherein the controller is configured to determine to activate the air pump based on a prediction by a prediction model.