Btu refrigerant - Tempreture of condensor evaporater

Technical information Refrigerants Standard Evaporator and Condenser Temperatures

Standard Temperature of the Evaporator and Condenser

Fig. 9-3 shows a typical pressure-enthalpy diagram for domestic cooling system. All the vapor-compression-based refrigeration and air conditioning systems use the same four main components. Pressure-enthalpy diagram (see Fig. 9-3 is the ideal of the refrigeration system and do not represent the pressure drops through the evaporator and condenser coils or inefficiency of the compressor.
  • Compression. The compressor must lines of constant enthalpy and increases the pressure of the refrigerant from 21 psig 117 pounds per square inch. This process is known as cidiabatic compressionpressure changes without adding or removing heat,
  • Condensation. The refrigerant vapor then passes from the compressor and condenser. High-pressure steam is condensed and refuses the warmth. Refrigerant changes of the state and the outlet of the condenser, as high-pressure liquid. The " pressure-enthalpy diagram condensation follows the line of the permanent TEM temperature, while reducing the amount of enthalpy (Btu).

    The result of this process, heat dissipation.
  • Metering. Refrigerant enters the expansion unit and differential pressure for the measuring instrument of reduced diameter. Refrigerant outputs the meter as a low-temperature vapor. This process leads to considerable pressure and differential temperature without the acquisition or loss of heat (Btu) and is called the adiabatic expansion,
  • Evaporation. Low vapor pressure refrigerant enters the evaporator and changes from liquid to vapor. This state change refrigerant absorb large amounts of heat (Btu) and occurs along the lines of constant pressure.


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