What is the theoretical discharge temperature of the compressor including suction superheat given the following conditions: Suction Pressure - 33 PSIG, Discharge Pressure - 152 PSIG, Suction Temp - 34°F?

To determine the theoretical discharge temperature of a compressor, you typically use thermodynamic principles related to refrigerant properties and the basic equations for compression.

In this case, the suction pressure (33 PSIG) and suction temperature (34°F) are required to first find the enthalpy at the compressor's inlet. From the suction temperature, you can ascertain the properties of the refrigerant at that particular state using a refrigerant property table or software specific to the refrigerant in use.

Once you have the inlet enthalpy, the next step is to consider the compressor's discharge pressure (152 PSIG). The compressor increases the refrigerant's pressure and, correspondingly, its temperature. The theoretical discharge temperature can generally be calculated using the refrigeration cycle equations, which includes considering the efficiency of the compressor and any superheat that may be present at the suction line.

For this scenario, the superheat must be taken into account, which is the temperature above the saturation temperature of the refrigerant at the suction pressure. By applying superheat to the initial temperature and then using the pressure ratio from suction to discharge to approximate the increase in temperature, you arrive at a theoretical discharge temperature.

Calculating with typical refrigerant values and assuming no significant heat loss