Marine Engineering Diploma

Explore keel types: flat, bar, and duct keels, and their roles in longitudinal strength, docking loads, open floors, double bottoms, and piping access.

Examine single bottom and double bottom structures, including inner bottom, floors, frames, intercostal stiffeners, and watertight tanks for oil, fuel, and fresh water.

Explains how shell plating forms the watertight ship skin, adds longitudinal strength, and resists vertical shear through both transverse and longitudinal framing. Describes bottom and side plating construction, welds, and framing options, including 40 percent midship thickness and longitudinal framing for ships over 120 meters.

Enhance vessel stability by explaining bilge keel designs that damp rolling, provide protection for the Belgium, and strengthen the bilge, while minimizing drag through careful placement and testing.

Bulkheads are vertical partitions that divide a ship into watertight compartments. Main hull bulkheads provide watertight safety and hull strength, while minor bulkheads subdivide spaces such as accommodations.

Learn how watertight doors balance accessibility with bulkhead integrity on ships, including framing openings, reinforcing stiffeners, and ensuring deep tank rigidity near machinery spaces for ballast, cargo heating, and trim.

Explain how the shaft tunnel forms a watertight enclosure protecting the propeller shaft, with inspection access and an escape ladder, and how pillars carry deck loads.

Explore stringers as stiffening members with higher scantlings to strengthen the side shell and forepeak against slamming, and see how breast hooks, ball frame, and forepeak bulkhead protect forward structures.

Explore fore end construction, including the form, stem bar, chain locker, and bulbous bow, and how green water loading shapes deck design and bow efficiency.

Compare aft end construction options, notably cruiser stern and transom stern, for hydrodynamic performance and maneuvering, and consider stern frame choices and stiffening requirements.

Study rudder design and construction, including balanced, semi-balanced, and unbalanced types, and how lateral pressure near the turning axis shapes steering torque, radial drive wheel, bearings, and reinforcement.

Explain how the stern tube connects the engine room to the propeller via a propeller shaft, using water lubricated glands and a shaft tunnel to prevent leakage.

Explore the engine room, the largest machinery space housing the vessel's prime mover for marine propulsion, and learn how segregated spaces and foundations control vibration and align the propeller shaft.

Understand hatch covers and coamings on ships, steel structures that guard cargo holds, prevent water ingress, support deck-stacked cargo, and reinforce hatch beams with thicker corner plates and rounded radii.

Explore ship entrances including side doors, companion hatches, and accommodation doors, detailing weathertight and watertight operation, hydraulic and manual opening, bridge controls, and manhole access for inspection.

explores the ship's entrances, detailing accommodation ladders on port and starboard, their aluminum construction, rotating platform, and winch-driven operation, plus the gangway and SOLAS-regulated pilot ladder for embarkation.

Learn how ship ventilation prevents cargo moisture damage, including sweat, using natural and mechanical systems, and how tank bleeders and mushroom vents regulate pressure for safe cargo hold venting.

Explore shipboard cranes on bulk carriers, including deck cranes with 25–50 tonne capacity and 30–36 m outreach, plus derrick rigs and side loading systems for efficient cargo handling.

Explore steel ramps on ro-ro vessels, including straight, curved (45°), and sloping designs, with fixed and adjustable variants, operated by winches or hydraulics, ensuring safe loading from deck to deck.

Explore hash pipes and anchor pockets, chain stoppers, and winches, detailing power options, chain handling, and end connections like shackles, buckles, and clamps for secure mooring and anchoring.

Explore ship tonnage—weight and volume measures—covering displacement, standard, deadweight, lightweight, gross, net tonnage; and explain draft, air draft, and Archimedes principle.

Explore fluid properties that describe a fluid's physical state, including density, specific weight, and specific volume, and their equations governing fluid motion.

Explore how a fluid stores energy in three forms—pressure energy or flow work, kinetic energy, and gravitational potential energy—within a one-dimensional incompressible flow in a control volume.

Explore hydrostatic forces on submerged surfaces, including total pressure, center of pressure, center of gravity, and moments of area, driven by gravity and pressure distribution.

Explore buoyancy and flotation as a body in a fluid experiences buoyant force equal to displaced fluid weight. Apply Archimedes principle and center of buoyancy to predict sinking or floating.

Explore metacenter and metacentric height GM to assess floating-body stability, derive BM as metacentric radius, and compare analytical and experimental methods with a practical block example.

Explore the marine diesel engine, its two-stroke and four-stroke configurations, its role in turning the main propeller, and the Otto, diesel, and dual combustion cycles.

Explore diesel engine basics, including compression ignition, fuel injection timing, and power transfer to the crankshaft. Examine speed classifications, swept and clearance volumes, compression ratio, natural aspiration, scavenging, and turbocharging.

Explore the four-stroke diesel engine cycle, from intake and suction to compression, fuel injection and ignition, expansion or power stroke, exhaust, and valve timing including lead, lag, and valve overlap.

Explore the diesel engine fuel oil system, detailing the fuel supply and fuel injection, including storage, heating, viscosity control, blending, safety devices, and jerk pump and common rail systems.

Learn how the lubrication system delivers oil from the sump through filters and coolers to bearings, while the cooling system uses freshwater and seawater circuits and a starting air system.

Explore how couplings, clutches and gearboxes dampen engine torque, provide flexible drive to the propeller, and reduce engine speed for proper operation, including hydraulic and mechanical clutches.

Explore steam turbines, including impulse and reaction types, nozzle and blade design, compounding, reheat, and turbine construction for marine propulsion.

Understand how boilers heat feedwater into steam using water-tube or fire-tube designs, with furnace, steam drums, superheaters, economizers, and air heaters.

Explore water tube boilers for high pressure, high temperature steam used in main propulsion and cargo pumps, featuring a two-drum D-type design with water walls and a superheater.

Explore fire tube boilers, where flue gases flow through fire tubes in water to generate steam, typically at low to medium pressure with packaged burner systems, saturated or superheated steam.

Explore exhaust gas heat exchangers that generate steam from diesel engine exhaust, boosting boiler efficiency; learn about feedwater regulators, water level gauges, and safety valves in boiler mountings.

Explore how combustion in marine boiler furnaces achieves complete burning through proper fuel and air supply, fuel heating, atomization, and various drought and burner designs.

Study thermodynamics as science of energy transfer and its effect on matter, covering energy conversion principles, macroscopic and microscopic views, and defining system, boundary, and open, closed, and isolated classes.

Explore thermodynamic equilibrium, including mechanical, chemical, and thermal states, and how isolation and diathermic walls define equilibrium. Examine quasi static, or reversible, processes and the zeroth law of temperature.

Explore thermodynamic properties, including thermodynamic temperature scale and relationships among Celsius, Kelvin, ranking, and Fahrenheit scales, and explain internal energy, enthalpy, specific heat, and sign conventions for heat and work.

Explains the first law of thermodynamics as the conservation of energy, showing that for any cycle the net work equals the heat exchanged, and that energy is a state function.

Explore the first law of thermodynamics and energy conservation in isolated systems, and examine how the perfect gas obeys the ideal gas relation with the universal gas constant.

Study specific heats of solids, liquids, and gases, including heat to raise unit mass by one degree, and the Cp and Cv definitions for constant-pressure and constant-volume processes.

Explore Joule's law: internal energy of a perfect gas depends only on absolute temperature, yielding u = c_v t and Δu = m c_v (t2 − t1) for any process.

Explore enthalpy, defined as H = U + PV, a fluid property, and note Cp = Cv + R, PV = RT, and gamma > 1 for a perfect gas.

Apply the first law of thermodynamics to closed systems, analyzing isochoric, isobaric, isothermal, adiabatic, and polytropic processes, and derive work and heat relations with cv, cp, and pv relationships.

Apply the first law to steady flow in open systems, derive the steady flow energy equation, and analyze enthalpy, internal energy, kinetic and potential energy, heat, and shaft work.

Explore engineering applications of the steady flow energy equation, showing how potential energy converts to kinetic energy and work in turbines, pumps, compressors, boilers, condensers, evaporators, and nozzles.

Analyze the second law of thermodynamics, contrasting heat and work and the limits on engines. Explore Carnot cycle, refrigerators and heat pumps, coefficient of performance, entropy, Clausius inequality, and irreversibility.

Explore how automobile electricity flows from chemical and magnetic energy sources to DC and AC voltage, Ohm's law, impedance, voltage drops, loads, series and parallel circuits, and Kirchhoff's laws.

Discover the fundamentals of electronics, including semiconductors like germanium and silicon, n-type and p-type materials, and doping. Explore diodes, Zener diodes, and transistors that control current.

Explore direct current distribution on ships, from busbars behind the main switchboard through circuit breakers and fuses to section and distribution boards; note the two-wire system and earth leads.

Explains direct current supply from multiple generators in parallel with protections against reverse current, low voltage, and overcurrent, using ammeters, voltmeters, and a triple pole circuit breaker for busbars.

Explore alternating current generators: rotating coil in a magnetic field with slip rings and carbon brushes produces AC; learn three-phase outputs, star and delta connections, plus cooling and speed-control options.

Explore the ship's three-wire distribution system, from alternators and the main switchboard to transformers, rectifiers, and the DC emergency supply for AC and DC loads.

Explore three-phase alternating current systems, instrumentation, transformers, and protection; examine dc motor back emf and induction motor starting methods like star-delta and autotransformers.