What is the theoretical discharge temperature considering the following conditions: Suction Pressure 33 PSIG, Suction Temperature 34°F, and Discharge Pressure 151 PSIG?

To determine the theoretical discharge temperature, you need to use the refrigerant properties and understand the relationships between pressure, temperature, and the refrigeration cycle.

In this scenario, knowing the suction pressure and temperature allows you to discern the state of the refrigerant in the low-pressure side before it is compressed. The discharge pressure indicates where the refrigerant will be after compression. The conversion from low to high pressures typically increases not only pressure but also temperature, as per the principles of thermodynamics.

By applying the appropriate thermodynamic formulas or refrigerant property tables, you would find that the increase in pressure correlates with a specific increase in temperature, leading you to calculate the expected discharge temperature. The 151 PSIG discharge pressure correlates to a discharge temperature that aligns closely with the refrigerant property tables for the defined refrigerant being used (often R-134a or similar).

In this case, selecting 194°F is consistent with the expected discharge temperature derived from the parameters provided. This value fits within the operating characteristics of a refrigeration system under those specific suction and discharge conditions.