Ph Diagram R134a. The first argument of the function is the substance. Diagram however the pressure is shown as absolute pressure psia the difference between the two is about 147 pounds per square inch or about 30 inches of mercury 2992 inches of mercury to be more precise.
If the operating temperatures and pressures are known the refrigeration system can be plotted on the p h. 5f compressor discharge pressure drop 455 psi economizer pd 45 psi the et for subcooler is 10f which is connected to the economizer of the. Manual describes the version of ees developed for microsoft windows operating systems including.
Evaporator the refrigerant entering the evaporator is a cold partial liquid vapor mixture.
R134a pressure enthalpy chart. Paul evans apr 14 2019. This is the difference between atmospheric pressure at sea level and no pressure 147 psi less than atmospheric pressure also referred to as a perfect vacuum. 1 1 r134a ph diagram.