What does the water wash inject through the water wash nozzle while monitoring the RIMSS?

What does the water wash inject through the water wash nozzle while monitoring the RIMSS?

• A. Water or chemical cleaner
• B. Fuel
• C. Air
• D. Lubricating oil

Answer: (A)

Water washing uses a liquid cleaning stream to dissolve and remove deposits from the compressor. The water wash nozzle delivers either plain water or a chemical cleaner approved for the wash, which helps restore compressor efficiency by cleaning the blades and passages. Introducing fuel, air, or lubricating oil through the wash nozzle would contaminate the system and isn’t part of the cleaning process, so they aren’t used. During the wash, the RIMSS is monitored to ensure the cleaning is proceeding safely and effectively, tracking relevant engine conditions to detect any abnormal readings.

Water washing uses a liquid cleaning stream to dissolve and remove deposits from the compressor. The water wash nozzle delivers either plain water or a chemical cleaner approved for the wash, which helps restore compressor efficiency by cleaning the blades and passages. Introducing fuel, air, or lubricating oil through the wash nozzle would contaminate the system and isn’t part of the cleaning process, so they aren’t used. During the wash, the RIMSS is monitored to ensure the cleaning is proceeding safely and effectively, tracking relevant engine conditions to detect any abnormal readings.