Q3. With reference to diesel engine hybrid Sox scrubber systems:
(a) State the fluids used in the open and closed loops of the scrubber, explaining how these fluids are controlled to meet the scrubbing demand at different engine loads;(6)
(b) State the circumstances under which Open Loop scrubbing would be used and Closed Loop scrubbing would be used; (2)
(c) Describe how the effective Sox neutralizing effect of the fluid used in the closed loop system is maintained during long operating periods and how pollution of the sea is avoided.(8)