True or False: Multi-stage centrifugal compressors increase discharge pressures by enhancing volume and pressure ratio.

Multi-stage centrifugal compressors are designed to increase discharge pressures effectively by utilizing multiple impellers or stages. Each stage compresses the gas and raises the pressure, allowing for a greater overall pressure increase compared to a single-stage compressor. The design leverages both the volume and pressure ratio enhancements achieved through the series of stages, making it capable of handling more demanding applications where higher discharge pressures are necessary.

By combining multiple stages, these compressors can compress gases to much higher pressures while also managing the volume flow efficiently through the process. Therefore, the statement is true; multi-stage centrifugal compressors indeed enhance discharge pressures by enhancing both volume and the pressure ratio through their multi-stage design. This capability is essential in various industrial applications, demonstrating the importance of such compressors in achieving desired operational specifications.