What is the difference between the Dew Point and the Bubble Point referred to as?

The difference between the Dew Point and the Bubble Point is referred to as Temperature Glide. This term is used primarily in the context of refrigerant behavior and phase changes during the cooling and heating processes.

The Dew Point is the temperature at which a vapor becomes saturated and starts to condense into a liquid, while the Bubble Point is the temperature at which a liquid begins to vaporize. The Temperature Glide represents the range of temperatures that occur during this phase change process for certain refrigerants, particularly in mixtures where the components evaporate or condense at different rates. This phenomenon is essential to understand because it affects system efficiency, capacity, and the performance of HVAC systems using these refrigerants.

Understanding Temperature Glide is crucial for technicians as it helps them make informed decisions regarding system design, refrigerant selection, and performance optimization, especially in systems that operate with temperature variations across different stages of the refrigeration cycle.