What method is used to perform a water wash on a turbine?

The method of performing a water wash on a turbine typically involves introducing cleaning solvents in a controlled manner under specific operating conditions, such as at one-half load. This approach allows for the effective removal of deposits and contaminants accumulated on the turbine blades without causing damage to the components or negatively impacting the turbine's performance.

When water and solvents are injected into the turbine, they help dissolve and wash away pollutants that may have accumulated during operation. Operating at half load ensures that the turbine can handle the additional water without affecting its performance drastically and allows for effective cleaning while minimizing the risk of unintended consequences, such as overspeed or pressure drops.

This carefully managed process ensures that the turbine can be cleaned while still maintaining operational safety and performance, which is crucial for efficient power generation.