The condensing pressure is 260psig and the metering device inlet temperature is 100 degrees for R-22 what is the total subcooling in the system?
To determine the total subcooling in the system, we need to know the condensing temperature and the liquid line temperature.
The condensing pressure of 260 psig can be converted to condensing temperature using a pressure-temperature chart for R-22 refrigerant. By referring to the chart, you can find that 260 psig corresponds to a condensing temperature of approximately 120°F.
The metering device inlet temperature is given as 100 degrees. This temperature represents the liquid line temperature.
To calculate the total subcooling, we subtract the liquid line temperature from the condensing temperature:
Total subcooling = Condensing temperature - Liquid line temperature
In this case, the calculation would be:
Total subcooling = 120°F - 100°F
Therefore, the total subcooling in the system would be 20°F.
Note: It's important to note that refrigeration systems may have additional factors and considerations that can affect subcooling, such as the specific design of the system or the manufacturer's recommendations. Always refer to system specifications and guidelines for accurate calculations.