EK Motor Jul 2021 (Q5)

With reference to diesel engine hybrid Sox scrubber system: 

1. State the fluids used in the open and closed loop of the scrubber, explaining how these fluids are controlled to meet the scrubbing demand at different engine loads (6) 
2. State the circumstance under which open loop scrubbing would be used. (2)
3. Describe how the effective Sox neutralizing effect of the fluid used in and closed loop system is maintained during long operation periods and two pollution of the sea is avoided (8)

Jul 2021 (Q5)