Q7.
a.) Define Specific Cylinder Lubricating Oil Consumption (SCLOC) in a two-stroke marine diesel engine. Derive the formula for SCLOC and explain the procedure for calculating it during normal engine operation.
(10)
(b) Discuss the factors affecting SCLOC and explain the procedures adopted onboard to optimize cylinder oil consumption. Include methods used for monitoring and adjusting the cylinder lubrication system.(6)
Reference Answer
### Part (a): Specific Cylinder Lubricating Oil Consumption (SCLOC) #### 1. Definition Specific Cylinder Lubricating Oil Consumption (SCLOC) is a key performance indicator (KPI) for a two-stroke marine diesel engine. It is defined as the mass of cylinder lubricating oil consumed per unit of energy produced by the engine. It quantifies the efficiency of cylinder lubrication. - **Units**: The standard unit for SCLOC is **grams per kilowatt-hour (g/kWh)**.
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