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AIR-CONDITIONING SYSTEM, :fountain_pen: CENTRAL AIR CONDITIONING SYSTEM …

- - - - CONDENSATION
        
        EXPANSION
        
        Refrigerant exits the condenser coil as a high-pressure liquid, although at lower temperature
        
        Refrigerant pass through expansion valve before returning to evaporator coil
        :check:FUNCTION:check:
        -Regulates flow of high-pressure refrigerant into low-pressure evaporator coil at a rate that maintains an optimal difference in pressure to ensure all refrigerant is evaporated prior to leaving the coil
        -High-pressure refrigerant is expanded as gas as it escapes the expansion valve
        
        Hot compressed refrigerant carries room heat energy
        -compressor > condenser coil
        
        Coil transfer heat to another medium, like air
        
        Condensor coil operates at higher temperature than air
        
        Air flow across coil is heated by coil and hot gas refrigerant flowing through the coil is conversely cooled
        
        Heat flow from refrigerant to air
        
        Air typically blown across hot coil by fan which exhaust the hot air to the outdoor
        
        This is how the heat energy from room pumped to outdoor
      - Vaporized but cool refrigerant carrying heat from data center is drawn into a compressor
        :check:IMPORTANT:check:
        -Pushes the refrigerant carry heat energy around the refrigeration loop
        -Compress gaseous refrigerant
        
        The compression of gas cause temperature to rise
        
        Moving gaseous refrigerant exiting the compressor is 52° C
        
        Temperature rise due to compression is the key to the ability of the refrigeration loop to eject heat into the outdoor environment