What is a reasonable evaporating temperature for a forced convection air cooling evaporator?

A reasonable evaporating temperature for a forced convection air cooling evaporator typically involves taking into account the temperature differential necessary for effective heat exchange. When air is cooled by passing over an evaporator, the evaporating temperature needs to be lower than the temperature of the air exiting the evaporator to allow for adequate heat absorption.

The choice reflecting the evaporating temperature being the air temperature off the evaporator minus 10K indicates that there is sufficient temperature difference for effective heat transfer. This allows the refrigerant in the evaporator to absorb enough heat from the air, facilitating proper cooling.

In practical terms, if the air temperature leaving the evaporator is 10K higher than the evaporating temperature, it ensures that the evaporator operates efficiently, preventing issues like icing and maximizing the cooling effect. A temperature differential of this magnitude helps maintain the overall system efficiency in a forced convection setup, allowing for optimal function in air conditioning and refrigeration applications.