Final answer:
The high side design pressure in a refrigeration system is indeed determined by the required condensing temperature of the refrigerant vapor, making the statement true. This pressure is essential for the refrigerant to condense at the desired temperature, which is influenced by heat transfer and the proper functioning of the system.
Step-by-step explanation:
The statement that the high side design pressure is determined by the required condensing temperature of the refrigerant vapor is true. In refrigeration and air conditioning systems, the condensation process occurs in the condenser, where the refrigerant vapor releases heat to the surrounding environment and changes state from a vapor to a liquid. The design pressure on the high side must be sufficient to allow condensation at the desired temperature, which is typically higher than the ambient temperature.
The thermodynamic principles governing refrigeration cycles demonstrate that as the temperature of the refrigerant increases due to compression, the vapor pressure also increases. This sets the necessary conditions for condensation to occur in the condenser. Heat transfer from the refrigerant to the room, or outside environment, facilitates this phase change, and the pressure at which this transfer occurs is crucial to the proper function of the refrigeration system. Hence, the design pressure in a refrigeration system correlates with the required condensing temperature to maintain equilibrium.