Which statement is true about the rotary vane compressor?

The choice that indicates the vanes move in the rotor is accurate because, in a rotary vane compressor, the vanes are designed to slide in and out of the rotor. As the rotor spins, centrifugal force acts on the vanes, which causes them to extend outward against the inner wall of the casing. This design creates a series of pressure chambers that help compress the refrigerant gas as it moves through the compressor.

This mechanism allows the compressor to effectively draw in refrigerant, compress it, and discharge it, maintaining a continuous flow necessary for refrigeration cycles. Understanding the movement and function of the vanes is crucial for grasping how rotary vane compressors operate and the role they play in HVAC systems, making it essential knowledge for anyone studying power engineering.