초록 ▼

An air cycle air conditioning system including a turbine for receiving air and providing expansion thereof, thus lowering the temperature and pressure of the air, an air--air heat exchanger defining a first air flow path for air to be cooled and a second air flow path for air from the turbine at sub

An air cycle air conditioning system including a turbine for receiving air and providing expansion thereof, thus lowering the temperature and pressure of the air, an air--air heat exchanger defining a first air flow path for air to be cooled and a second air flow path for air from the turbine at sub-atmospheric pressure to pass therethrough and absorb heat from the air to be cooled, and a compressor, at least partially driven by the turbine, for drawing air at sub-atmospheric pressure through the second flow path for air, characterized by a pre-heater which heats a flow of air, preferably comprising a mixer of ambient air and recirculation air, and directs this mixed flow to the air--air heat exchanger, thereby increasing its temperature and, as a result, the outlet temperature of the secondary air flow, thereby increasing its water vapor absorption capacity.

대표청구항 ▼

[ What is claimed is:] [1.] An air cycle air conditioning system comprising:a turbine for receiving air and providing expansion thereof, thus lowering a temperature thereof;an air--air heat exchanger defining a first air flow path for a fluid to be cooled and a second air flow path for air from said

[ What is claimed is:] [1.] An air cycle air conditioning system comprising:a turbine for receiving air and providing expansion thereof, thus lowering a temperature thereof;an air--air heat exchanger defining a first air flow path for a fluid to be cooled and a second air flow path for air from said turbine at sub-atmospheric pressure to pass therethrough and absorb heat from the fluid to be cooled; anda compressor, at least partially driven by said turbine, for drawing air at sub-atmospheric pressure through the second flow path for air,characterized bya pre-heater which heats a flow of incoming air, said incoming air not coming from said turbine, and directs said flow of incoming air via said first air flow path to said air--air heat exchanger, thereby heating said incoming air and consequently increasing a temperature and water vapor absorption capacity of said air of said second airflow path.