What component is used between stages of a compound compression system?

In a compound compression system, an intercooler plays a crucial role by cooling the gas between stages of compression. As gas is compressed, its temperature rises due to the increase in pressure from the compression process. An intercooler is used to reduce the temperature of the gas before it enters the next compression stage, leading to a more efficient process.

Cooling the gas prior to further compression decreases the work required by the subsequent compressor stages. This not only improves the overall efficiency of the system but also helps to prevent potential overheating and associated wear on the compressors.

The other components mentioned have different specific functions: the evaporator is involved in vaporizing refrigerant, the condenser is responsible for condensing the refrigerant from vapor to liquid, and the compressor serves to increase the pressure of the refrigerant gas in the cycle. Therefore, the intercooler uniquely addresses the need to manage temperature effectively between the stages of a compound compression system.