What is the purpose of steam ejectors on the surface condenser of a system with a turbine?

The purpose of steam ejectors on the surface condenser of a system with a turbine is to create a proper operating exhaust vacuum. Steam ejectors function by using the high-speed jet of high-pressure steam to entrain and remove gases or vapors from the condenser. This action lowers the pressure within the condenser, which is crucial for maintaining a vacuum that allows the system to operate efficiently.

By achieving a proper vacuum within the condenser, the steam ejectors help facilitate the condensation of steam into water, enhancing the overall thermodynamic efficiency of the steam cycle. This vacuum ensures that the pressure at the turbine's exhaust is sufficiently low, which allows for improved turbine performance, as the turbine can extract more work from the steam.

While other options relate to system functionality, they do not align with the primary role of steam ejectors in maintaining optimal operational conditions within the condenser system.