| 摘要 |
PROBLEM TO BE SOLVED: To provide electronic equipment in which plural pieces of server equipment are installed in a closed rack internally loaded with an air conditioner and a system for more reducing the power and use power of the air conditioner by using the system for cooling those server equipment as a target.SOLUTION: Coolant cooled by a condenser installed outdoors is pressure-reduced by a first expansion value, and made to flow to a direct expansion cooling jacket which cools the CPU of server equipment, and separated into a gas phase and a liquid phase by a gas/liquid separator, and the liquid phase part of the separated coolant is more pressure-reduced by a second expansion value than the first expansion value, and made to flow to an air/heat exchanger loaded in the rack so that air in the rack can be cooled. Thus, it is possible to cool the CPU at a coolant evaporation temperature set to a cooling upper limit while cooling air in the rack at a coolant temperature which is 25°C as usual. Therefore, it is possible to reduce an air conditioning power for the quantity of heat to be removed of the CPU. |
