Aircraft comprising a cooling system for operation with a two-phase refrigerant

Aircraft comprising a cooling system, wherein the cooling system comprises:

• a cooling circuit allowing circulation of a two-phase refrigerant therethrough,
• an evaporator disposed in a first section of the cooling circuit and having a refrigerant inlet and a refrigerant outlet,
• a condenser disposed in a second section of the cooling circuit and having a refrigerant inlet and a refrigerant outlet,
• a first cooling circuit control valve disposed in the cooling circuit between the refrigerant outlet of the evaporator and the refrigerant inlet of the condenser, and
• a second cooling circuit control valve disposed in the cooling circuit between the refrigerant outlet of the condenser and the refrigerant inlet of the evaporator, the first and the second cooling circuit control valve in their closed state being adapted to seal the first section of the cooling circuit from the second section of the cooling circuit, wherein the second section of the cooling circuit is installed in an unpressurized region of the aircraft.