To determine the temperature of the refrigerant flowing in the evaporator of an air conditioning (AC) system, we need additional information. Specifically, we need to know the pressure at which the refrigerant is operating in the evaporator.
The temperature of a refrigerant in a system depends on both the pressure and the type of refrigerant being used. The relationship between pressure and temperature is described by the refrigerant's pressure-temperature (P-T) chart or table.
Different refrigerants have different P-T relationships, so the specific refrigerant being used in the AC system is necessary to provide an accurate temperature reading.
If you provide the specific refrigerant and the corresponding pressure in the evaporator, I can help you determine the temperature based on its P-T chart or table.