Cooling system

A cooling system comprising:

• a local cooler that is positioned near a heat source and evaporates a liquid-phase refrigerant by receiving heat from the heat source;
• a turbo compressor that compresses a gas-phase refrigerant that absorbed the heat in the local cooler;
• an outdoor unit that condenses the gas-phase refrigerant supplied from the turbo compressor by heat dissipation;
• and
• an expansion valve that depressurizes the refrigerant supplied from the outdoor unit and sends the refrigerant to the local cooler,
• wherein the refrigerant is a low-pressure refrigerant having a condensing pressure lower than a predetermined value,
• wherein a plurality of the local coolers corresponding to the heat source are installed,
• a flow rate adjusting valve that adjusts a supply amount of the liquid-phase refrigerant is respectively provided in a middle of a refrigerant supply pipe that supplies the liquid-phase refrigerant to the local coolers,
• a refrigerant supply pump that supplies the liquid-phase refrigerant to the local coolers is provided between the flow rate adjusting valve and the expansion valve, and
• a refrigerant tank that temporarily stores the refrigerant is installed on an inlet side of the refrigerant supply pump.