Server facility cooling system
Technology is provided for a server facility cooling system. The system can include a coolant tank containing an electrically insulating liquid and one or more servers submerged in the liquid. At least a portion of the heat generated by the servers is transferred to the liquid. An elongate cooling loop extends vertically between a first end and a second end, wherein the first end is located in the air and the second end is located underground. A heat exchanger is positioned between the coolant tank and the cooling loop to transfer heat from the liquid to the cooling loop. A cylindrical cooling tower is positioned around the first end of the cooling loop.
1. A server cooling system, comprising:
a tank containing an electrically insulating liquid;
one or more servers submerged in the liquid, wherein at least a portion of the heat generated by the one or more servers is transferred to the liquid;
an elongated cooling loop extending vertically between a first end portion and a second end portion, wherein the first end portion is located in the surrounding air and the second end portion is located beneath the surface of the earth; and
a heat exchanger positioned between the tank and the cooling loop configured to transfer heat from the liquid to the cooling loop,
wherein the heat exchanger comprises a thermally conductive wall in contact with the liquid on one side and in contact with the cooling loop on an opposite side.
2. The cooling system of claim 1 , further comprising a cylindrical cooling tower positioned around the first end portion of the cooling loop.
3. The cooling system of claim 2 , further comprising a fan positioned in the cooling tower to move air through the cooling tower.
4. The cooling system of claim 1 , wherein the thermally conductive wall comprises metal.
5. The cooling system of claim 1 , wherein the cooling loop comprises a tubular loop containing water.
6. The cooling system of claim 5 , further comprising a pump coupled to the cooling loop to circulate the water in the tubular loop.
7. A server cooling system, comprising:
a coolant tank containing an electrically insulating liquid;
one or more servers submerged in the liquid, wherein at least a portion of the heat generated by the one or more servers is transferred to the liquid;
an elongated cooling loop extending vertically between a first end portion and a second end portion, wherein the first end portion is located in the surrounding air and the second end portion is located beneath the surface of the earth;
a heat exchanger positioned between the coolant tank and the cooling loop configured to transfer heat from the liquid to the cooling loop; and
a cylindrical cooling tower positioned around the first end portion of the cooling loop,
wherein the heat exchanger comprises a metal wall in contact with the liquid on one side and in contact with the elongated cooling loop on an opposite side.
8. The cooling system of claim 7 , wherein the cooling loop comprises a tubular loop containing water.
9. A method for cooling servers, comprising:
submerging one or more servers in an electrically insulating liquid, whereby at least a portion of the heat generated by the one or more servers is transferred to the liquid;
positioning a heat exchanger in contact with the electrically insulating liquid; and
circulating a coolant in a vertically oriented loop between the heat exchanger and at least one heat sink, wherein the at least one heat sink is the earth,
wherein the heat exchanger comprises a thermally conductive wall in contact with the electrically insulating liquid on one side and in contact with the vertically oriented loop on an opposite side.
10. The method of claim 9 , further comprising circulating the electrically insulating liquid around the one or more servers.