Air conditioning system

An air-conditioning system for a cooling operation and a heating operation comprising,

• a first heat exchanger to which a high-pressure and high-temperature refrigerant which has not been substantially cooled and adiabatically expanded after being compressed is supplied to heat an inside of a room to be air-conditioned,
• a second heat exchanger to which a low-pressure and low-temperature refrigerant which has been substantially cooled and adiabatically expanded after being compressed is supplied to cool the inside of the room,
• an air flow generator for generating an air flow which passes the first heat exchanger and the second heat exchanger,
• a first temperature sensor for measuring a temperature of the inside of the room,
• a second temperature sensor for measuring a temperature of the air flow which has passed the first and second heat exchangers, and
• a temperature adjusting means for determining a desired temperature of the air flow which has passed the first and second heat exchangers on the basis of a difference between a predetermined temperature and the temperature of the inside of the room measured by the first temperature sensor, and for controlling a ratio of a flow rate of the refrigerant flowing through the first heat exchanger to a flow rate of the refrigerant flowing through the second heat exchanger to change the temperature measured by the second temperature sensor to the desired temperature.