At what pressure does the high stage compressor discharge in a two-stage package system?

In a two-stage refrigeration system, the high stage compressor is responsible for compressing the refrigerant to high pressure before it is sent to the condenser. The discharge pressure of the high stage compressor is typically determined by the design of the system, the refrigerant being used, and the performance requirements of the application.

The correct answer of 154 PSIG aligns with common pressure settings found in many industrial refrigeration systems, where the high stage will often be optimized to achieve an efficient balance between performance and energy consumption. This pressure allows the refrigerant to effectively condense in the condenser, which typically operates at a pressure slightly lower than the discharge pressure of the compressor.

By setting the discharge pressure at 154 PSIG, the system ensures that it operates within a safe and efficient range, maximizing system performance while minimizing the risk of issues such as overheating or excessive wear on the compressor components. Understanding these pressure settings is crucial for effective management and operation of refrigeration systems in industrial settings.