Q7. Exhaust emission control is a major global issue and under serious consideration by world shipping. In this context, comment on the following: - A. Tier 2 and 3 emission regulation on main engine; B. Primary NOx reduction vis-a-vis secondary NOx reduction measures; C. SCR for NOx Emission Reduction; D. Scavenge Air Moisturizing & Exhaust Gas Recirculation for ME.
Q3): Exhaust emission control is a major global issue and under serious consideration by world shipping. In this context, comment on the following: -
a) Tier 2 and 3 emission regulation on main engine (4)
b) Primary NOx reduction vis-a-vis secondary NOx reduction measures. (4)
c) SCR for NOx Emission Reduction. (4)
d) Scavenge Air Moisturizing & Exhaust Gas Recirculation for ME. (4)
Q2. (a) How does the Selective Catalytic Reduction (SCR) system work? (10)
(b) If Selective Catalytic Reduction (SCR) has such an extremely high NOx reduction efficiency
why is it so rare in marine applications? (10)
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