Server cooling system without the use of vapor compression refrigeration

1. A server cooling center comprising:

a plurality of fans forming an air cooling path to cool first server components by convection to outdoor ambient air by passing the outdoor ambient air over the first server components;

a pump circulating a liquid coolant to cool second server components through direct thermal conduction into the liquid coolant, the liquid coolant is cooled by flowing the outdoor ambient air over a heat exchanger without the use of a vapor compression refrigeration unit;

a plurality of sidewalls, each sidewall including a first side exposed to the outdoor ambient air and second side facing the first server components and the second server components, the side walls having openings to allow the outdoor ambient air into the cooling center;

at least one chimney allowing heated air to flow out of the cooling center; and

a raised floor, the outdoor ambient air entering above the raised floor is channeled to the heat exchangers and the outdoor ambient air entering below the raised floor is channeled to the first server components.

2. The cooling center of claim 1 , further comprising at least one of air filters and louvers, configured to weather guard and control air flow through the openings in the sidewalls.

3. The cooling center of claim 1 , further comprising a second heat exchanger positioned below the raised floor along at least part of the air cooling path.

4. The cooling center of claim 1 , further comprising server racks with perforated surfaces allowing for airflow through the racks.

5. The cooling center of claim 1 , wherein the heat exchanger is positioned at an entrance of the air cooling path.

6. The cooling center of claim 1 , further comprising valves to control flow of the liquid coolant through different heat exchangers.

7. The cooling system of claim 1 , wherein the plurality of fans is proximate to the heat exchangers, the fans having a diameter greater than 200 mm.