The discussion revolves around the phase changes of refrigerants as they pass through heat exchanger devices, such as condensers and evaporators. Participants explore whether phase changes are guaranteed under certain conditions, the role of temperature and pressure, and the implications for refrigeration cycles.
Participants express differing views on the conditions necessary for phase changes to occur, particularly regarding the role of temperature and pressure. There is no consensus on whether phase changes are guaranteed in all scenarios.
Participants highlight the importance of understanding saturation temperature and pressure relationships, but some assumptions about the conditions under which phase changes occur remain unresolved.
This should not be considered the atmospheric boiling point; it is the saturation temperature at the pressure in the evaporator.Atomic80 said:When a Refrigerant goes through a heat exchanger, it begins to absorb heat. When it reaches it's boiling point there is where the cooling begins, it turns into a low pressure vapour with the aborbed heat in it and releases the heat through the condenser( Did that help)?
Chestermiller said:This should not be considered the atmospheric boiling point; it is the saturation temperature at the pressure in the evaporator.
No. The saturation states of a refrigerant refer to the curve of temperature versus pressure in which the liquid and vapor can simultaneously exist in thermodynamic equilibrium.Atomic80 said:You need to remember also that Refrigerants have low boiling point, in the negatives to be exact so it's the actual boiling point of the gas? Saturation temperature happens when the refrigerant cools from a gas to a liquid in it's high pressure state. Isn't that so?
Chestermiller said:No. The saturation states of a refrigerant refer to the curve of temperature versus pressure in which the liquid and vapor can simultaneously exist in thermodynamic equilibrium.
Sure.Atomic80 said:So in this case, during evaporation, condensation.