Subject Code & Name: MV25401 – Marine Engines – II
Regulation: R-2025
Semester: IV (Fourth Semester)
Branch: B.E. Marine Engineering (Marine)
Credits / L-T-P: 4 Credits | L-T-P: 3-0-2
Course Objectives
- The course aims to provide an understanding of marine engine starting, reversing, and safe operating practices, along with the analysis of engine performance, lubrication, and maintenance procedures.
- It also covers the functioning of governors, crankcase inspection, and safety systems, and introduces the construction and operation of modern smart marine engines.
Full Unit-wise Syllabus
Unit I – Marine Diesel Engine Maneuvering System
Starting and reversing system of different marine diesel engines with safety provisions.
Practical: Study of Starting Air Distribution System in 2-Stroke Marine Engines; Study of Marine Engine Reversing Mechanism; Demonstration of Turning Gear Engagement and Safety Arrangement
Unit II – Auxiliary Diesel Engines, Medium Speed Engine, Gearing Systems, Clutches and Exhaust Valve
Auxiliary diesel Engines, medium Speed engine, Gearing systems and Clutches: Types, couplings, and reduction gears used in conjunction with medium speed engines. Development in exhaust valve design, V- type engine details
Practical: Demonstration of Speed Control in Medium Speed Diesel Engines; Study of V-Type Engine Arrangement and Working Principle
Unit III – Performance Characteristics of Diesel Engine and Indicator Cards & Lubricating System
Performance Characteristics of diesel Engine and indicator Cards & Lubricating System Constructional details of indicator instruments, Indicator diagrams and power calculations. significance of power diagram calculations and fault detection, simple draw card, light spring cards and out of phase diagram, power balancing, Load diagrams, performance characteristics curve, test bed and sea trails of diesel engines. Lubrication arrangement in diesel engines including Cooling System, Merits and demerits of different cooling mediums, cylinder lubrication, liner wear and preventive measures.
Practical: Study and Measurement of Indicator Diagrams using Indicator Instrument; Demonstration of Hans Jensen Mechanical Lubricator; Study of Alpha Lubrication System; Calculation of Indicated Power Using Power Cards
Unit IV – Governors and Crankcase Inspection
Governors and their Operation with PID Controller, Over speed arrangement and over speed safety. Electronic Governors with constant speed arrangement. Marine diesel engine Crank Case Inspection, depth gauge and crankshaft deflection and alignment.
Practical: Study of Electronic Governor and Constant Speed Operation; Crankshaft Deflection Measurement
Unit V – Basic Construction and Operation of Smart Engines
Difference between convention and smart engines. Introduction to engine control system, Engine Hydraulic Oil Loop, Hydraulic cylinder unit, Fuel Oil Pressure Booster, Fuel Oil Injection working principle, Exhaust valve, Fiva Valve, ME Tacho-system
Practical: Study of Fuel Oil Injection Working Principle in Smart Engines; Study of Hydraulic and Fuel Booster Arrangements in Smart Engines
Tasks: T1. A marine engine fails to start or reverse properly – analyze starting system and safety mechanisms. T2. A ship engine shows abnormal vibration and power imbalance – evaluate performance using indicator diagrams. T3. A marine engine experiences excessive liner wear and lubrication failure – diagnose causes and suggest improvements. T4. A vessel faces engine overspeed or governor malfunction – analyze control system and propose corrective measures.
Course Outcomes (COs)
- CO1: Explain safe practices in marine engine starting and reversing operation.
- CO2: Explain safe practices in marine engine operation.
- CO3: Analyze marine engine performance and lubrication system.
- CO4: Explain the inspection and maintenance procedure for marine diesel engine crank case and governor.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 50% | End Semester Examinations 50%
- Internal methodology: Written Test (40%), Practical (30%), Activity (30%). Practical: Lab Experiments (50%), Tasks (50%) (Each student must complete a minimum of two tasks). Activity: Review of GATE/ESE Questions (10%), Mini Project/ Quiz/ Assignment Programs/ Flipped Class /Seminar Presentation (20%)
Source: Official Anna University – B.E. Marine Engineering R-2025 Syllabus
Last Updated: October 2026
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