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Graduate Marine Engineer ( GME) Marine Auxiliaries

Graduate Marine Engineer ( GME) Marine Auxiliaries. ajit / Tr Sup ( Engg ) 16/07/12. Machinery, equipment & systems, on board a ship. E/R Lay Out Main Engine, (ME) Propeller, Shafting System, Stern Tube, Plummer Block / Pedestal Bearing

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Graduate Marine Engineer ( GME) Marine Auxiliaries

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  1. Graduate Marine Engineer(GME)Marine Auxiliaries ajit / Tr Sup (Engg) 16/07/12

  2. Machinery, equipment & systems, on board a ship E/R Lay Out Main Engine, (ME) Propeller, Shafting System, Stern Tube, Plummer Block / Pedestal Bearing Power Generation, Auxiliary Engine, Diesel Generator, Alternator Engine (AE / DG) Steering Gear Thrusters (Bow / Stern) Tanks and Storage Systems Pumps and Pumping Systems Valves Piping Systems Strainers & Filters Boilers Air Compressors and associated systems Mooring and Anchor Handling Machinery Cranes, Davits, Winches Refrigeration Air Conditioning Pollution Prevention Machinery and Equipment FO / LO Purifiers & Separators Fresh Water Production, Treatment and Supply Heat Exchangers LSA / FFA, Emergency Systems Petroleum Tanker Systems Hydraulic Systems Electrical Systems Pneumatic Systems Bridge & Navigational Equipment Personnel Protection and related systems ajit / Tr Sup (Engg) 16/07/12

  3. Back to List of machinery Engine Room Layout Engine Room M.V.Dubai Express, ME Bottom Floor Bottom Platform (ME Crank Case) 1 st Platform (ME Cylinder Lubricator and Emergency Manoeuvering) 2 nd Platform (ME Cylinder Head Platform) 3 rd Platform ajit / Tr Sup (Engg) 16/07/12

  4. Back to ER Layout Engine Room Layout ER Floor Tank Top Bottom Bilge Well ER DBs ajit / Tr Sup (Engg) 16/07/12

  5. Back to ER Layout M.V.Dubai Express, ME Bottom Floor ajit / Tr Sup (Engg) 16/07/12

  6. Back to ER Layout Engine Room Layout Bottom Platform (ME Crank Case) Main Engine Thrust Bearing or Thrust Block Intermediate and Tail shaft Pedestal Bearing or Plummer Block Stern Tube High & Low Sea Chests / Suctions Emergency bilge Suction Bilge wells (Port / Stbd / Aft) SW Pumps MSW Pump Auxiliary / Harbour SW Pump Main Fire pump General Service Pump Ejector pump (For FWG) Ballast Pumps Other pumps Bilge pump Sludge pump Main LO Pumps HO, DO & LO Transfer pumps Stern Tube LO Pumps ME LO Purifier Pump OWS LT Cooler & LT FW Pumps MGPS ICCP ajit / Tr Sup (Engg) 16/07/12

  7. Back to ER Layout Engine Room Layout 1 st Platform (ME Emergency Manoeuvering) ME Emergency maneuvering Coolers ME LO Cooler ME JW Cooler FW Pumps ME JCW Pumps (HT) AE JCW Pumps (HT) Fresh Water Generator Purifier room HFO Sepr, 2 DO Sepr, 1 LO sepr, 2 (ME & AE) Fuel Module ME / AE / Blr ME Autobackwash LO filter Sewage treatment plant ajit / Tr Sup (Engg) 16/07/12

  8. Back to ER Layout Engine Room Layout 2 nd Platform (ME Cylinder Head Platform) Main Air Compressors & Air Receivers Topping Up Air Compressor Working air compressor & its Bottle Control Air Compressor & its Bottle Control Air Drier Emergency Air Compressor & its Bottle Generators Aux O/F Boiler EGB water circulating pumps Boiler Feed Water pumps Atmospheric steam condenser Cascade Tank / Hot well / Observation Tank ajit / Tr Sup (Engg) 16/07/12

  9. Back to ER Layout Engine Room Layout 3 rd Platform EGB Incinerator Ref and AC plants FW Hydrophore system DW Hydrophore system Mineralizer UV Treatment plant Geyser & Hot Water Circ Pp Steering Gear Room (outside machinery spaces) Aft Mooring Winch Power Pack Emergency Fire Pump VRCS ECR ER Work Shop ER Spares and Stores ER Crane Upper Platforms ER blowers ME, AE, MAC, Expansion Tanks St Tube Header Tank ajit / Tr Sup (Engg) 16/07/12

  10. Back to List of machinery Main Engine Main Propulsion engines are mostly directly coupled, slow speed, reversible, 2 stroke, uniflow scavenged, turbocharged, in line, diesel engine, pier to pier operation on Heavy Fuel Oil Preheat / Warm up Notice to prepare main engine (One Hour Notice) Telegraph test / Steering Gear test / Clocks synchronize Blow Through Trying out ME Ahd & Ast Manoeuvering System Monitoring & Alarm System OMD Cylinder Lubricator (Mechanical & Alfa Lubricators) Engine Sump and Lubrication Engine Cooling systems Charge Air Cooler LO Cooler JW Cooler FO Viscosity Controller ME RPM & Direction Sensing Governor Axial Vibration Monitoring System FO Leak sensing system Turbocharger Auxiliary Blowers & its controls ---------------------------------------------------------------------------------------------------------------------------------------------- ajit / Tr Sup (Engg) 16/07/12

  11. Back to Main Engine Manoeuvering System Main Engine Manoeuvering Locations Bridge / Bridge Wings ECR Emergency Stand Manoeuvering System, Starting System Reversing System Turning Gear & Starting Interlock Engine Telegraph & Engine Order Recorder Bridge Manoeuvering System, BMS Load Program UP / DOWN, Load Program Cancel Slow Turning / Slow Turning Cancel Engine Protection System Protection Override -------------------------------------------------------------------------------------------------------------------------------------------- ajit / Tr Sup (Engg) 16/07/12

  12. Back to Main Engine Main Engine Monitoring & Alarm System Exhaust Temp out, one / unit Exhaust Temp deviation T/ch Ex Temp in T/ch Ex Temp out T/ch LO Out Temp T/ch LO Pr JCW Inlet Temp JCW In Pr JCW Out Temp, one / unit PCO Out Temp, one / unit PCO In Pr PCO Flow , one / unit Scav Space Temp , one / unit Charge Air Temp OMD Leak Oil Thrust Bearing Temp Vibration Cyl Oil Non Flow , one / unit Cyl Oil Level , one / unit Air in JCW Deareator Expansion Tank level Air Spring Pr Low Engine Slow down Turbocharger LO Oil pr low JCW Temp high Thrust bearing temp high OMD high Cyl oil non flow JCW Pr Low PCO now flow PCO temp high Engine Shut down Main LO pr low Over speed Air Spring Pr Low Low Thrust Bearing temp Hi Hi Interlocks Turning Gear Engaged Running Direction Telegraph order Aux Blower not on ajit / Tr Sup (Engg) 16/07/12

  13. Back to List of machinery Shafting System Shafting System Intermediate Shaft Tail Shaft Plummer Block / Pedestal Bearing M.V.Dubai Express Shaft Shaft Earthing System Stern Tube Sealing Lubrication system Cooling Bearing Temp Monitoring LO condition monitoring and drain line Stern Tube Seals Header tank Forward seal tank Air seal system Water lubricated stern tube Propeller Pitch Speed Theoretical speed, Vt = (P.N. × 60) /1852 Knots (P-pitch in meters, N – r.p.m.) Speed of Advance,Va, ship’s speed with respect to wake speed Speed over ground, V, ship’s speed as obtained by fixes on chart Slip Real Slip (Always positive), (Vt - Va) / Vt × 100 % Apparent Slip (Maybe positive or negative), (Vt - V) / Vt × 100 % Apparent slip is calculated daily noon when at sea Mounting method, Keyless Solid / Variable Pitch Propellers Controllable Pitch Propeller -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ajit / Tr Sup (Engg) 16/07/12

  14. Back to List of machinery Ship Speeds Back ajit / Tr Sup (Engg) 16/07/12

  15. Back to shafting System Shafting System Propeller, Shafting System, Stern Tube, Plummer Block / Pedestal Bearing ajit / Tr Sup (Engg) 16/07/12

  16. Back to shafting System M.V.Dubai Express Shaft ajit / Tr Sup (Engg) 16/07/12

  17. Back to shafting System Shaft Earthing System ajit / Tr Sup (Engg) 16/07/12

  18. Back to shafting System Stern Tube ajit / Tr Sup (Engg) 16/07/12

  19. Back to shafting System Stern Tube Seals ajit / Tr Sup (Engg) 16/07/12

  20. Back to shafting System Propeller ajit / Tr Sup (Engg) 16/07/12

  21. Back to shafting System Controllable Pitch Propeller ajit / Tr Sup (Engg) 16/07/12

  22. Back to List of machinery Power Generation, Auxiliary Engine, Diesel Generator, Alternator Engine (AE / DG) Diesel Generators (DG) Alternator Engine driving an Alternator Shaft Generators Turbo Generators (T/G) Shaft Generators Emergency Generators Battery Back up Systems ------------------------------------------------------------------------------------------------------------------------------------------- Next ajit / Tr Sup (Engg) 16/07/12

  23. Power Generation, Auxiliary Engine, Diesel Generator, Alternator Engine (AE / DG) Prev ajit / Tr Sup (Engg) 16/07/12

  24. Back to List of machinery Electrical Systems Monitoring, Alarm & Control Systems MSB Alternator Alternator Excitation system & AVR Emergency Generator & Panel Battery Back Up Systems Transformers Motors MGPS ICCP ajit / Tr Sup (Engg) 16/07/12

  25. Back to Electrical Systems Monitoring, Alarm & Control Systems Channels Digital Analogue ajit / Tr Sup (Engg) 16/07/12

  26. Back to Electrical Systems MSB MSB Group Starter Panel 1 Group Starter Panel 2 DG 1 Panel DG 2 Panel DG 3 Panel Synchronizing Panel 220 V Panel 24 V Panel Tie Breaker Panel Earth Fault monitoring, 440 / 220 / 24 ACB Normal operation ACB Emergency operation ACB Safeguards ajit / Tr Sup (Engg) 16/07/12

  27. Back to Electrical Systems Alternator Excitation System and AVR Excitation System AVR ajit / Tr Sup (Engg) 16/07/12

  28. Back to Electrical Systems Alternator Cooling System ajit / Tr Sup (Engg) 16/07/12

  29. Back to Electrical Systems Emergency Generator & Panel Emergency Generator Emergency Generator Control Panel & Switch Board ajit / Tr Sup (Engg) 16/07/12

  30. Back to Electrical Systems Battery Back Up Systems GMDSS Emergency Lighting Fire Alarm Charging Safety ajit / Tr Sup (Engg) 16/07/12

  31. Back to Electrical Systems Transformers Lighting Transformer Main Emergency Generator Transformer Forward lighting transformer ajit / Tr Sup (Engg) 16/07/12

  32. Back to Electrical Systems Motors DC Motors AC Motors AC / DC Motors ajit / Tr Sup (Engg) 16/07/12

  33. Back to Electrical Systems MGPS MGPS ajit / Tr Sup (Engg) 16/07/12

  34. Back to Electrical Systems ICCP ICCP ajit / Tr Sup (Engg) 16/07/12

  35. Back to List of machinery Steering Gear Steering Gear Consists of Power Unit Hydraulic pump driven by electric motor Pump Types Fixed Delivery Variable Delivery Actuator Liner Ram & Cylinder Piston & Cylinder Rotary Mechanical components transferring actuator movement to rudder Ram & Cylinder Forked Tiller Cross Head Piston & Cylinder Oscillating cylinder Rotary vane No mechanical components, direct rotary movement Control System Electric & Electronic Electro Hydraulic NFU & FU Auto Pilot ajit / Tr Sup (Engg) 16/07/12

  36. Back to List of machinery Bow & Stern Thrusters Axial Propeller installed in a port – stbd tunnel, propeller can turn either way to develop thrust in either directions Electric motor OR Hydraulic motor Drive Controllable or Fixed Pitch Propeller ajit / Tr Sup (Engg) 07/08/2012

  37. Back to List of machinery Tanks and Storage Systems Tanks Ballast Tanks Bunker Tanks (Fuel Oil / Diesel Oil / Lubricating Oil) Settling Tank (HFO, DO, ME LO) Service Tank (HFO, DO Fresh Water Tanks Drinking Water Tanks Boiler Feed Tank Sludge tank Bilge Tank Peak Tanks (Fore & Aft) Center Tanks / Wing Tank Double Bottom Tanks Cargo Oil Tank (COT) / Slop Tank Top Side Tanks, TST Hopper Tank Void Space Cofferdam Cargo Hold (Hatch) Engine Room tanks ER DBs (ME LO Drain tank, BHT, OBT, DO) ER Hull Tanks (LO Storage, HFO, FW) ER Portable Tanks (HFO Sett/Serv, DO Sett / Serv, Boiler Serv) Expansion Tanks (ME JCW, AE JCW, LT, HT, MAC) ajit / Tr Sup (Engg) 07/08/2012

  38. Back to List of machinery Pumps and Pumping Systems Classification of pumps Various types of pumps on board as per their application Suction Pressure at Pump NPSH ajit / Tr Sup (Engg) 16/07/12

  39. Back to Pumps & Pumping Sys Classification of Pumps Centrifugal (Rotodynamic) The centrifugal or roto-dynamic pump produce a head and a flow by increasing the velocity of the liquid through the machine with the help of a rotating vane impeller. The Centrifugal Pump has varying flow depending on the system pressure or head. n the  Centrifugal Pump the flow is reduced when the viscosity is increased. Centrifugal pumps include radial, axial and mixed flow units. Types End suction / In-line / Double suction / Vertical multistage / Horizontal multistage Positive Displacement The positive displacement pump operates by alternating of filling a cavity and then displacing a given volume of liquid. The positive displacement pump delivers a constant volume of liquid for each cycle against varying discharge pressure or head. n the Positive Displacement Pump the flow is increased when viscosity is increased Rotary Gear Pump Screw Pump Lobe Pump Vane Pump Progressive Cavity Reciprocating Piston / Plunger & Cylinder Diaphram Variable Delivery Pumps Vacuum pumps Eductors and Ejectors ajit / Tr Sup (Engg) 16/07/12

  40. Back to Pumps & Pumping Sys Various types of pumps on board as per application • Various types of pumps on board as per their application • Ballast Pump • Fire Pump • GS Pump • Sea Water Pump (Main & Aux / Harb) • Fuel Oil Pumps • Lube Oil Pumps • Sludge Pumps ajit / Tr Sup (Engg) 16/07/12

  41. Back to Pumps & Pumping Sys Suction Pressure at Pump Low pressure at the suction side of a pump can encounter the fluid to start boiling with reduced efficiency & cavitation damage. Boiling starts when the pressure in the liquid is reduced to the vapor pressure of the fluid at the actual temperature. ajit / Tr Sup (Engg) 16/07/12

  42. Back to Pumps & Pumping Sys NPSH Net Positive Suction Head - NPSH The Net Positive Suction Head - NPSH - can be expressed as the difference between the Suction Head and the Liquids Vapor Head. Suction head in the fluid close to the impeller can be expressed as the sum of the Static and the Velocity head: hs = ps / γ + vs2 / 2 g        (1) hs = suction head close to the impeller ps = static pressure in the fluid close to the impeller γ = specific weight of the fluid vs = velocity of fluid g = acceleration of gravity Liquids Vapor Head The liquids vapor head at the actual temperature can be expressed as: hv = pv / γ       (2) where hv = vapor head pv = vapor pressure Net Positive Suction Head - NPSH The Net Positive Suction Head (NPSH) =Suction Head -Liquids Vapor Head. NPSH = hs - hv      (3) or, by combining (1) and (2), NPSH = ps / γ + vs2 / 2 g - pv / γ  (3b) ajit / Tr Sup (Engg) 16/07/12

  43. Back to List of machinery Valves Gate or Sluice, Straight Globe, Straight and Right angled (Screw Lift or SDNR) Butterfly Wafer type (Lugless) Lugged type High Performance Double eccentric type Relief v/v Pressure Reducing v/v Quick Closing v/v Isolation v/v 2 Way & 3 way cocks Ball v/v, Ball Cock Storm v/v (over board Flap v/v) Ship Side (Overboard) v/v Steam traps ajit / Tr Sup (Engg) 16/07/12

  44. Back to List of machinery Piping Systems Fire Main System Compressed Air System Starting air system Control air system Working or Service air system MSW System Auxiliary SW System ME JCW System AE JCW System FO Piping Steam Piping Bilge System Ballast System ajit / Tr Sup (Engg) 16/07/12

  45. Back to List of machinery Strainers & Filters Strainer, Strainer / Strum box / Rose box Filters Duplex (Full flow) Auto cleaning / Self cleaning Auto back wash Magnetic Centrifugal ajit / Tr Sup (Engg) 16/07/12

  46. Back to List of machinery Boilers Exhaust Gas Boiler OR Economizer OR Waste Heat Boiler Oil Fired Boiler Composite Boiler Main Boiler Auxiliary Boiler Donkey Boiler ajit / Tr Sup (Engg) 16/07/12

  47. Back to List of machinery Air Compressors and associated systems Air Compressors Main Air Compressors Topping up Compressor Deck Air OR Working air, Compressor Control Air Compressor Emergency Air Compressor Types of Air Compressors Reciprocating (piston/cylinder) Rotary (screw) Air Vessels Air Driers Air Compressor control system Unloaded start Intermittent draining while in operation Auto Start Stop control Lead and Follow control ajit / Tr Sup (Engg) 16/07/12

  48. Back to List of machinery Mooring and Anchor Handling Machinery Windlass Gypsy / Cable Lifter Chain Stopper Brake, Hydraulic, Remote Release Mooring winch Aft Forward (along with windlass) Forward Breast Aft Breast Components Rope Drum Warping Drum Dog Clutch Brake Gear Box Hydraulic Motor Auto Tensioning device ajit / Tr Sup (Engg) 16/07/12

  49. Back to List of machinery Cranes, Davits, Winches Cargo Cranes Gantries ER Travelling crane Provision Crane Midship hose handling crane Gangway winch ajit / Tr Sup (Engg) 16/07/12

  50. Back to List of machinery Refrigeration Fridge Rooms Fridge Compressors Defrosting Ozone generator ajit / Tr Sup (Engg) 16/07/12

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