Question

As the indoor wet-bulb temperature increases on fixed metering systems, how does the required superheat change?

a) Decreases
b) Increases

Answer 1

As the indoor wet-bulb temperature increases on fixed metering systems, the required superheat decreases.

Step-by-step explanation:

As the indoor wet-bulb temperature increases on fixed metering systems, the required superheat decreases.

This occurs because the wet-bulb temperature represents the temperature at which liquid water can evaporate into a gas. When the indoor wet-bulb temperature increases, it means that the air inside the system is becoming more humid and saturated with moisture. In this condition, less superheat is required to prevent liquid refrigerant from entering the compressor, as the moisture in the air provides additional cooling capacity.