MAN B&W L28/32H Manual
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MAN B&W L28/32H Manual

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Introduction
Introduction to project guide
Key for engine designation
Designation of cylinders
Code identification for instruments
Basic symbols for piping
General information
List of capacities
Engine performance
Heat balance
Description of sound measurements
Sound measurements
Exhaust gas emission
Moment of inertia
Overhaul recommendations
Basic Diesel Engine
General description
Cross section
Main particulars
Dimensions and weights
Centre of gravity
Material specification
Overhaul areas
Low dismantling height
Engine rotation clockwise
Fuel Oil System
Internal fuel oil system
Fuel oil diagram
Fuel oil specification
Fuel oil cleaning recommendations
Specific fuel oil consumption SFOC
HFO/MDO changing valves (V1 and V2)
Lubrication Oil System
Internal lubricating oil system
Prelubricating pump
Lubricating oil specification
Treatment of lubricating oil
Cooling Water System
Freshwater system treatment
Internal cooling water system
Internal cooling water system 1
Internal cooling water system 2
Design data for external cooling water system
External cooling water system
One string central cooling water system
Preheater arrangement in high temperature system
Project Guides
Text
I 00
D 10
B 10
B 11
B 12
B 13
Index
L28/32H
Index
Drawing No.
I 00 00 0
1643483-5.2
I 00 05 0
1609526-0.5
I 00 15 0
1607568-0.1
I 00 20 0
1609522-3.9
I 00 25 0
1631472-4.1
D 10 05 0
1607535-6.6
D 10 10 0
1607522-4.1
D 10 20 0
1607580-9.2
D 10 25 0
1609510-3.3
D 10 25 0
1613431-9.1
D 10 28 0
1624461-6.2
D 10 30 0
1607592-9.2
D 10 35 0
1624483-2.2
B 10 01 1
1605544-1.5
B 10 01 1
1607528-5.2
B 10 01 1
1607569-2.5
B 10 01 1
1613426-1.5
B 10 01 1
1631459-4.0
B 10 01 1
1613480-9.3
B 10 01 1
1624446-2.5
B 10 01 1
1631464-1.0
B 10 11 1
1607566-7.1
B 11 00 0
1607543-9.5
B 11 00 0
1624468-9.4
B 11 00 0
1609529-6.3
B 11 00 0
1655267-1.3
B 11 01 0
1607587-1.7
E 11 10 1
1624467-7.2
B 12 00 0
1613544-6.4
B 12 07 0
1624477-3.4
B 12 15 0
1609531-8.3
B 12 15 0
1643494-3.3
B 13 00 0
1609571-3.4
B 13 00 0
1613439-3.1
B 13 00 0
1613443-9.2
B 13 00 0
1613444-0.3
B 13 00 0
1613545-8.1
B 13 00 0
1613442-7.0
B 13 00 0
1624464-1.0
B 13 23 1
1613487-1.4

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Summary of Contents for MAN B&W L28/32H

  • Page 1 Project Guides Index L28/32H Text Index Drawing No. Introduction I 00 Introduction to project guide I 00 00 0 1643483-5.2 Key for engine designation I 00 05 0 1609526-0.5 Designation of cylinders I 00 15 0 1607568-0.1 Code identification for instruments I 00 20 0 1609522-3.9...
  • Page 2 Index Project Guides L28/32H Text Index Drawing No. Compressed Air System B 14 Compressed air system B 14 00 0 1613520-6.4 Compressed air system B 14 00 0 1624476-1.1 Combustion Air System B 15 Combustion air system B 15 00 0 1613523-1.4...
  • Page 3 Project Guides Index L28/32H Text Index Drawing No. Tools P 24 Standard tools for normal maintenance P 24 01 1 1613467-9.4 Tools for reconditioning P 24 02 1 1613460-6.4 Extra tools for low dismantling height P 24 04 1 1613463-1.2...
  • Page 5 Introduction I 00...
  • Page 7 1643483-5.2 I 00 00 0 Introduction to Project Guide Page 1 (1) General Introduction With this Project Guide we hope that we have provided you with a "tool" covering all necessary information required for project planning of the GenSet installation and making your daily work easier. Further, our Project Department is available with advices on more specific questions concerning the projecting.
  • Page 9 1609526-0.5 I 00 05 0 Key for Engine Designation Page 1 (1) General Engine Type Identification The engine types of the MAN B&W Holeby programme are identified by the following figures: 28/32 No. of cylinders 5, 6, 7, 8, 9 12, 16, 18 Engine Type In-line...
  • Page 11 1607568-0.1 Designation of Cylinders I 00 15 0 Page 1 (1) In-Line 98.19...
  • Page 13 1609522-3.9 Code Identification for Instruments I 00 20 0 Page 1 (2) General Explanation of Symbols Measuring device Local reading Temperature Indicator No. 40 * Measuring device Sensor mounted on engine/unit Reading/identification mounted in a panel on the engine/unit Pressure Indicator No.
  • Page 14 1609522-3.9 I 00 20 0 Code Identification for Instruments Page 2 (2) General Standard Text for Instruments Diesel Engine/Alternator LT Water System inlet to air cooler inlet to alternator inlet to lub. oil cooler outlet from air cooler outlet from alternator inlet to fresh water cooler (SW) outlet from lub.
  • Page 15 1631472-4.1 Basic Symbols for Piping I 00 25 0 Page 1 (3) General Symbol Symbol designation Symbol Symbol designation GENERAL CONVENTIONAL SYMBOLS 2.14 Spectacle flange Pipe 2.15 Orifice Pipe with indication of flow direction 2.16 Orifice Valves, gate valves, cocks and flaps 2.17 Loop expansion joint Appliances...
  • Page 16 1631472-4.1 I 00 25 0 Basic Symbols for Piping Page 2 (3) General Symbol Symbol designation Symbol Symbol designation 3.17 Double-seated change over valve CONTROL AND REGULATION PARTS 3.18 Suction valve chest Han-operated 3.19 Suction valve chest with non-return valves Remote control 3.20 Double-seated change over valve, straight...
  • Page 17 1631472-4.1 Basic Symbols for Piping I 00 25 0 Page 3 (3) General Symbol Symbol designation Symbol Symbol designation FITTINGS Gear or screw pump Funnel / waste tray Hand pump (bucket) Drain Ejector Waste tray 5.10 Various accessories (text to be added) Waste tray with plug 5.11 Piston pump...

  • Page 19: General Information

    General information D 10...
  • Page 21 1607535-6.6 List of Capacities D 10 05 0 Page 1 (1) L28/32H Max. continuous rating at Cyl. 5-ECR 720 RPM 1050 1260 1470 1680 1890 750 RPM 1100 1320 1540 1760 1980 ENGINE-DRIVEN PUMPS. Fuel oil feed pump (5.5-7.5 bar) L.T.
  • Page 23 1607522-4.1 Engine Performance D 10 10 0 Page 1 (1) L28/32H MCR P = 210 kW/cyl. at 720 RPM. Pme = 17.8 bar ISO ambient conditions MDO calorific value 42700 kJ/kg without engine driven pumps (Generator load, const.RPM) spec. air cons.
  • Page 25 1607580-9.2 D 10 20 0 Heat Balance Page 1 (1) L28/32H MCR P = 210 kW/cyl. at 720 RPM. Pme = 17.8 bar Ambient cond. 27.0 C - 1.00 bar - Cool W 27.0 C (Generator load, const. RPM) Exhaust gas Jacket cooling/Ch.
  • Page 27 1609510-3.3 Description of Sound Measurements D 10 25 0 Page 1 (2) General Purpose It should be noted that no deduction can be made due to background noise, and that the sound level, This should be seen as an easily comprehensible measured in sound pressure, is approx.
  • Page 28 1609510-3.3 D 10 25 0 Description of Sound Measurements Page 2 (2) General DIN 45 635 part 11 1987 Points of Measurement for Exhaust Sound DIN 45635 part 11 1987 Measured inside the exhaust pipe with a Points of measurement will be according to one of measuring probe.
  • Page 29 1613431-9.1 Sound Measurements D 10 25 0 Page 1 (1) L28/32H Engine and Exhaust Sound Number of cylinders Engine sound:* 101.0 101.0 Mean sound pressure 100.0 99.4 99.1 100.6 99.1 100.0 99.3 100.0 dB (A) approx. anechoic chamber Exhaust sound:** 120.0...
  • Page 31 1624461-6.2 Exhaust Gas Emission D 10 28 0 Page 1 (1) General The composition of the exhaust gases emitted by our The ash and SO content of the exhaust gas is solely medium-speed four-stroke diesel engines during full determined by the composition of the fuel and not by load operation and depending on the air/fuel ratio is the combustion in the engine.
  • Page 33 1607592-9.2 D 10 30 0 Moment of Inertia Page 1 (1) L28/32H Moment of inertia (J) No. of Generator Max. cont. Speed rating Engine Flywheel Generator Total cyl. type* r/min. DIDBN 1050 74.0 561.0 131i/10 DIDBN 1100 74.0 511.0 131h/8...
  • Page 35 1624483-2.2 Overhaul Recommendations D 10 35 0 Page 1 (1) L28/32H Hours Expected Component Overhaul Recommendations Between Service Overhauls Life Turbocharger Dry cleaning of turbine side ............. every second Wet cleaning of turbine side ............every week Water washing of compressor side ..........
  • Page 37 Basic Diesel Engine B 10...
  • Page 39 1605544-1.5 General Description B 10 01 1 Page 1 (5) L28/32H Cylinder Liner General The cylinder liner is made of fine-grained, pearlite The engine is a turbocharged, single-acting, four- cast iron and fitted in a bore in the engine frame.

  • Page 40: Fuel Injection System

    1605544-1.5 B 10 01 1 General Description Page 2 (5) L28/32H metal is welded on to the valve spindle seats. valve is controlled by the fuel oil pressure, and the valve is closed by a spring. The valve spindles are fitted with valve rotators...

  • Page 41: General Description

    1605544-1.5 General Description B 10 01 1 Page 3 (5) L28/32H In special cases a vibration damper is mounted on through the cylinder liner. The joint faces on con- the crankshaft to limit torsional vibrations. The necting rod and bearing cap are serrated to ensure...
  • Page 42 1605544-1.5 B 10 01 1 General Description Page 4 (5) L28/32H The lubricating oil pipes for the gear wheels are water is passed twice through the cooler, the end equipped with nozzles which are adjusted to apply covers being designed with partitions which cause the oil at the points where the gear wheels are in the cooling water to turn.
  • Page 43 1605544-1.5 General Description B 10 01 1 Page 5 (5) L28/32H coupling, the pump housing is equipped with a water system and the temperature regulating is spring-loaded adjustable by-pass valve. made by a termostatic 3-way valve on the oil side.
  • Page 45 1607528-5.2 Cross Section B 10 01 1 Page 1 (1) L28/32H 99.40...

  • Page 47: Main Particulars

    1607569-2.5 Main Particulars B 10 01 1 Page 1 (1) L28/32H Cycle 4-stroke Configuration In-line Cyl. Nos. available 5-6-7-8-9 Power range 1050-1980 kW (1430-2690 BHP) Speed 720/750 rpm Bore 280 mm Stroke 320 mm Stroke/bore ratio 1.14:1 Piston area per cyl.
  • Page 49 1613426-1.5 Dimensions and Weights B 10 01 1 Page 1 (1) L28/32H Cyl. no A (mm) * B (mm) * C (mm) H (mm) **Dry weight GenSet (t) 5 (720 rpm) 4279 2400 6679 3184 32.6 5 (750 rpm) 4279...
  • Page 51 1631459-4.0 B 10 01 1 Centre of Gravity Page 1 (1) L28/32H Engine Type X - mm Y - mm Z - mm 5L28/32H 2010 1060 6L28/32H 2315 1060 The values are based on generator make A. van Kaick, if other generator is chosen the values will...

  • Page 53: Material Specification

    1613480-9.3 B 10 01 1 Material Specification Page 1 (1) L28/32H Components Material Grey cast iron Frame Crankshaft Forged, hardened and tempered chromium- molybdenum steel Connecting rod Forged, hardened and tempered chromium-mo- lybdenum steel Piston Spheroid graphite cast iron Cylinder head...
  • Page 55 1624446-2.5 Overhaul Areas B 10 01 1 Page 1 (2) L28/32H Fig 1 Dismantling height for piston. Engine Type Frame (H1) Cylinder Head (H2) Turbocharger (H3) 5-6L28/32H 2235 2710 2900 7-8L28/32H 2235 2710 2990 9L28/32H 2235 2710 3040 Dismantling Height for Piston...
  • Page 56 1624446-2.5 Overhaul Areas B 10 01 1 Page 2 (2) L28/32H Dismantling space It must be considered that there is sufficient space for pulling the charge air cooler element, air filter on the turbocharger, lubricating oil cooler, lubricating oil filter cartridge and bracing bolt.
  • Page 57 1631464-1.0 Low Dismantling Height B 10 01 1 Page 1 (1) L28/32H Space Requirements Fig. 1. Minimum dismantling height of pistons only with special tools. Fig. 2. Minimum lifting height of cylinder liner only with special tools. 92.38...
  • Page 59 1607566-7.1 Engine Rotation Clockwise B 10 11 1 Page 1 (1) General 98.18...

  • Page 61: Fuel Oil System

    Fuel Oil System B 11...

  • Page 63: Internal Fuel Oil System

    1607543-9.5 Internal Fuel Oil System B 11 00 0 Page 1 (2) L28/32H Fig 1 Diagram for fuel oil system. The safety filter is a duplex filter of the split type with Pipe description a filter fineness of 50 my. The filter is equipped with...
  • Page 64 B 11 00 0 Internal Fuel Oil System Page 2 (2) L28/32H The injection pumps are installed on the roller guide The alarm unit consists of a box with a float switch for housings directly above the camshaft, and they are level monitoring.
  • Page 65 1624468-9.4 B 11 00 0 Fuel Oil Diagram Page 1 (3) General Fig 1 Fuel oil diagram. 99.33...

  • Page 66: Fuel Feed System

    1624468-9.4 Fuel Oil Diagram B 11 00 0 Page 2 (3) General Uni-Fuel The fuel system on page 1 is designed as a uni-fuel The circulating pump pressure should be about 10 system, which means that the propulsion engines bar, this provides a pressure margin against gasification and cavitation in the fuel system even at and the GenSets are running on the same fuel oil and are feed from common fuel feed system.
  • Page 67 1624468-9.4 Fuel Oil Diagram B 11 00 0 Page 3 (3) General Emergency Start – If the engine has a built-on booster pump, it can be used if the minimum level in the MDO service tank corresponds to or is max. 1.0 m below the level Further, the MDO must be available as a fuel in of the built-on pump.
  • Page 69 1609529-6.3 Fuel Oil Specification B 11 00 0 Page 1 (3) General Commercially available fuel oils with a viscosity up to The data refer to the fuel as supplied, i.e. before 700 cSt at 50° C corresponding to 55 cSt at 100° C any on-board cleaning.
  • Page 70 1609529-6.3 B 11 00 0 Fuel Oil Specification Page 2 (3) General Fuel Oil Condition, when Entering the Engine As practically all fuel oil specifications including the For fuels above 180 cSt/50° C a pressurerized fuel oil system is necessary to avoid boiling and foaming above standards refer to the same fuel type as supplied, the fuel supplied to a ship has to be treated of the fuel.
  • Page 71 1609529-6.3 Fuel Oil Specification B 11 00 0 Page 3 (3) General Fuel oil - preheating chart Approx. viscosity after preheater sec. Temperature after preheater °C Normal preheating limit Approx. pumping limit Log scales 55 cSt/100° C cSt/50° C 1500 3500 7000 sec.
  • Page 73 1655267-1.3 Fuel Oil Cleaning Recommendations B 11 00 0 Page 1 (1) General Centrifuging Automatic centrifuges must be used. Fuel types Fuel oils should always be considered as contami- RMK35 to RMK55 require centrifuges capable to nated upon delivery and should therefore be handle up to 1010 kg/m density.
  • Page 75 1607587-1.7 Specific Fuel Oil Consumption SFOC B 11 01 0 Page 1 (1) L28/32H Constant Speed Engines L28/32H Engine type Speed r/min kW/cyl. Load SFOC (g/kWh) 232.9 232.1 25 % 230.4 229.8 198.8 50 % 199.1 198.2 197.9 188.3 189.0 75 % 190.3...
  • Page 77 1624467-7.2 HFO/MDO Changing Valves (V1 and V2) E 11 10 1 Page 1 (2) General Description To maintain recirculation in the HFO flow line when the GenSet is operated on MDO a by-pass valve must be installed between the inlet changing valve The fuel changing system consist for GenSet of two (V1) and the outlet valve (V2) at each GenSet as three-way valves (V1 and V2) with a electric/...
  • Page 78 1624467-7.2 E 11 10 1 HFO/MDO Changing Valves (V1 and V2) Page 2 (2) General Furthermore the 24 V DC pilot voltage is used for In case of black-out and other situations resulting in operating the fuel changing valves with a pneumati- dead voltage potential, the fuel changing valves will cally and electrically operated actuator of the sim- be de-energized and automatically take MDO-posi-...

  • Page 79: Lubrication Oil System

    Lubrication Oil System B 12...

  • Page 81: Internal Lubricating Oil System

    1613544-6.4 Internal Lubricating Oil System B 12 00 0 Page 1 (4) L28/32H Fig 1 Diagram for internal lubricating oil system. The lubricating oil is furthermore used for the pur- Pipe description pose of cooling the pistons. Lubricating oil from separator...
  • Page 82 1613544-6.4 B 12 00 0 Internal Lubricating Oil System Page 2 (4) L28/32H System Flow Quantities in litres for engine, Engine type incl. cooler, filters and pipes on engine The lubricating oil pump draws oil from the oil sump and presses the oil through the cooler and filter to the main lubricating oil pipe, from where the oil is distri- buted to the individual lubricating points.
  • Page 83 1613544-6.4 Internal Lubricating Oil System B 12 00 0 Page 3 (4) L28/32H Built-on Full-flow Depth Filter From the front main bearings channels are bored in the crankshaft for lubricating of the pump drive. The built-on lubricating oil filter is of the duplex paper cartridge type.
  • Page 84 1613544-6.4 B 12 00 0 Internal Lubricating Oil System Page 4 (4) L28/32H Pressure transmitting Branches for: – PT 22 Lub. oil inlet after cooler – External fine filter Temperature element – External full/flow filter – TE 20 Lub. oil inlet before cooler Branches for separator is standard.
  • Page 85 Type current current type cyl. type Amp. Amp. L23/30H 5-6-7-8 R25/12.5 2850 MT 80 A 19F 0.75 L28/32H 5-6-7-8-9 FL-Z-DB-SO 165-2 V28/32H 12-16-18 R35/25 2860 MT90S MK 1.7* 21.0 FL-Z-DB-50 110 049-S Electric motor 3x440 V, 60 Hz (IP 55) Engine No.

  • Page 87: Lubricating Oil Specification

    Requirement Guiding Values This document is valid for the following engine types: Based on typical load profile for marine GenSet (50- L16/24, L21/31, L23/30H, L27/38, L28/32H, V28/ 60% of rated power) 32H. Oil type For the engines, a HD-lub. oil (heavy duty) corre- (initial) (equilibrium) (min.
  • Page 89 1643494-3.3 Treatment of Lubricating Oil B 12 15 0 Page 1 (2) General Operation on Marine Diesel Oil (MDO) Example: for 1000 kW engine operating on HFO, self-cleaning separator with a daily effective sepa- rating period of 23 hours: The built-on full-flow depth filter cleans the oil thor- oughly.
  • Page 90 1643494-3.3 Treatment of Lubricating Oil B 12 15 0 Page 2 (2) General Venting hole Oil level in Engine To/from separator base frame Separator unit Overflow Fig. 1 Principle lay-out for direct separating on a single plant. tank Eng. No 1 Fig.

  • Page 91: Cooling Water System

    Cooling Water System B 13...
  • Page 93 1609571-3.4 Freshwater System Treatment B 13 00 0 Page 1 (5) General Protection against Corrosion in Freshwater Cleaning agents emulsified in water as well as Cooling System slightly alkaline cleaning agents can be used for the degreasing process, whereas ready-mixed cleaning agents which involve the risk of fire must obviously The engine fresh water must be carefully treated, not be used.
  • Page 94 1609571-3.4 B 13 00 0 Freshwater System Treatment Page 2 (5) General Checking of the Cooling Water System and If deionized or distilled water cannot be obtained, the Sooling Water during Service normal drinking water can be used in exceptional cases.
  • Page 95 1609571-3.4 Freshwater System Treatment B 13 00 0 Page 3 (5) General A chloride content in the cooling water higher than The cooling water system must not be kept the 50 ppm specified might, in exceptional cases be under pressure. tolerated.
  • Page 96 1609571-3.4 B 13 00 0 Freshwater System Treatment Page 4 (5) General Adding of Inhibitors A number of descaling preparations contain colour indicators which show the state of the acid solution. If the acid content is exhausted, a new acid solution Fill up the cooling water system with water from the can be added, in which case, the weakest recom- evaporator to the lowest water level in the expansion...
  • Page 97 1609571-3.4 Freshwater System Treatment B 13 00 0 Page 5 (5) General Nitrite-borate corrosion inhibitors for cooling water treatment Maker's minimum Company Name of Inhibitor Delivery Form Recommended Dosage* Castrol Limited Castrol Powder 3 kg/1000 l Swindon Solvex WT4 Wiltshire, England Castrol Liquid 20 l/1000 l...
  • Page 99 1613439-3.1 Internal Cooling Water System B 13 00 0 Page 1 (2) General Internal Cooling Water System System Lay-Out The engine's cooling water system comprises a low MAN B&W Holeby's standard for the internal cooling temperature (LT) circuit and a high temperature (HT) water system is shown on Basis Diagram 2.
  • Page 100 1613439-3.1 B 13 00 0 Internal Cooling Water System Page 2 (2) General Preheating Arrangement As an optional the engine can be equipped with a built-on preheating arrangement in the HT-circuit including a thermostatic controlled el-heating ele- ment and safety valve. The system is based on thermo-syphon circulation.
  • Page 101 1613443-9.2 Internal Cooling Water System 1 B 13 00 0 Page 1 (2) L28/32H Fig 1 Diagram for internal cooling water system 1. The engine is equipped with a self-controlling high Pipe description temperature (HT) water circuit for cooling of cylinder liners and cylinder heads.

  • Page 102: High Temperature Circuit

    1613443-9.2 B 13 00 0 Internal Cooling Water System 1 Page 2 (2) L28/32H Optionals The charge air cooler and the lubricating oil cooler are siuated parallelly in order to have the lowest possible cooling water inlet temperature for both coolers.
  • Page 103 1613444-0.3 Internal Cooling Water System 2 B 13 00 0 Page 1 (2) L28/32H Fig 1 Diagram for internal cooling water system 2. Description Pipe description The system is designed with separate LT- and HT- HT fresh water inlet DN 100...
  • Page 104 1613444-0.3 B 13 00 0 Internal Cooling Water System 2 Page 2 (2) L28/32H High Temperature (HT) Circuit – Thermostatic valve on outlet, HT-system – Engine driven pump for HT-system From the external HT-system, water is led through a –...
  • Page 105 The cooling water pumps should be of the centrifugal information for dimensioning of auxiliary machinery type. in the external cooling water system for the L28/32H type engine(s).The stated data are for one engine only and are specified at MCR. Differential pressure 1-2.5 bar 1-2.5 bar...
  • Page 107 1613442-7.0 External Cooling Water System B 13 00 0 Page 1 (1) General Design of External Cooling Water System If the thermostat valve is placed on the engine's inlet side , which is not to be recommended, the tempera- ture on the engine depends on the load with the risk It is not difficult to make a system fulfil the require- of overheating at full load.
  • Page 109 1624464-1.0 B 13 00 0 One String Central Cooling Water System Page 1 (2) General 91.39...

  • Page 110: System Design

    1624464-1.0 One String Central Cooling Water System B 13 00 0 Page 2 (2) General System Design Preheating of Stand-by GenSets during Sea- operation: The system is a central cooling water system of simple design with only one central cooler. Low GenSets in stand-by position are preheated temperature (LT) and fresh water (FW) pumps are automatically via the venting pipe with water from the...
  • Page 111 1613487-1.4 Preheater Arrangement in High Temperature System B 13 23 1 Page 1 (1) L28/32H General The system is based on thermosiphon cooling and reverse water direction, i.e. from top and downward, The built-on cooling water preheating arrangement and an optimal heat distribution in the engine is thus consist of a thermostat-controlled el-preheating ele- reached.

  • Page 113: Compressed Air System

    Compressed Air System B 14...
  • Page 115 1613520-6.4 Compressed Air System B 14 00 0 Page 1 (2) L28/32H Fig 1 Diagram for compressed air system. Starting System Pipe description The engine is started by means of a built-on air Compressed air inlet DN 40 starter, which is a turbine motor with gear box, safety clutch and drive shaft with pinion.

  • Page 116: Safety System

    1613520-6.4 B 14 00 0 Compressed Air System Page 2 (2) L28/32H Further, the system is equipped with an emergency When the pinion is fully engaged, the pilot air will flow starting valve which makes it possible to activate the to, and open the main starting valve, whereby air will air starter manually in case of a power failure.
  • Page 117 1624476-1.1 Compressed Air System B 14 00 0 Page 1 (1) General Oil and water separator Starting air bottle Drain to bilge Engine Engine Engine No. N No. 2 No. 1 Air compressors MAN B&W, Holeby supply Fig. 1. Diagram for Compressed Air System. Installation Design of External System In order to protect the engine's starting and control...

  • Page 119: Combustion Air System

    Combustion Air System B 15...
  • Page 121 1613523-1.4 Combustion Air System B 15 00 0 Page 1 (2) L28/32H Fig 1 Diagram for combustion air system. From the turbocharger the air is led via the charge air Pipe description cooler and charge air receiver to the inlet valves of each cylinder.
  • Page 122 1613523-1.4 B 15 00 0 Combustion Air System Page 2 (2) L28/32H Water Mist Catcher – Limitating of fuel oil index during starting procedure. At outlet charge air cooler the charge air is led through the water mist catcher. The water mist...
  • Page 123 1639499-6.0 Water Washing of Turbocharger - Compressor B 15 05 1 Page 1 (1) General During operation the compressor will gradually be fouled due to the presence of oil mist and dust in the inlet air. The fouling reduces the efficiency of the turbochar- ger which will result in reduced engine performance.
  • Page 125 1639456-5.0 Lambda Controller B 15 11 1 Page 1 (2) L28/32H Purpose At a 50% load change the system will be activated for about 3-8 seconds. The purpose with the lambda controller is to prevent injection of more fuel in the combustion chamber...
  • Page 126 1639456-5.0 B 15 11 1 Lambda Controller Page 2 (2) L28/32H Fig. 1 Jet system 93.44...

  • Page 127: Exhaust Gas System

    Exhaust Gas System B 16...
  • Page 129 1609535-5.1 Exhaust Gas System B 16 00 0 Page 1 (2) General Internal exhaust gas system The insulation should be shielded by a thin plating, and should comply with the requirements of the From the exhaust valves, the gas is led to the classification society and/or the local authorities.
  • Page 130 1609535-5.1 B 16 00 0 Exhaust Gas System Page 2 (2) General Position of gas outlet on turbocharger The exhaust gas boilers should be installed with by- pass entering in function at low load operation. B 16 02 0 shows turning alternatives positions of the exhaust gas outlet.
  • Page 131 1607517-7.4 B 16 01 1 Water Washing of Turbocharger - Turbine Page 1 (2) General The tendency to fouling on the gas side of turbochar- Experience has shown, that washing at regular gers depends on the combustion conditions, which intervals is essential to successful cleaning, as exces- are a result of the load on and the maintenance sive fouling is thus avoided.
  • Page 132 1607517-7.4 Water Washing of Turbocharger - Turbine B 16 01 1 Page 2 (2) General 98.20...
  • Page 133 1607599-1.3 Dry Cleaning of Turbocharger - Turbine B 16 01 2 Page 1 (3) General Description Cleaning System The tendency to fouling on the gas side of turbochar- The cleaning system consists of a cleaning agent gers depends on the combustion conditions, which container 1 with a capacity of approx.
  • Page 134 1607599-1.3 B 16 01 2 Dry Cleaning of Turbocharger - Turbine Page 2 (3) General Dry cleaning of turbochargers Suppliers of cleaning agents: "Solf Blast Grit, Grade 14/25" TURCO Products B.V. Verl. Blokkenweg 12, 617 AD EDE - Holland Tel.:08380 - 31380, Fax.: 08380 - 37069 Designation unknown Neptunes Vinke B.V.
  • Page 135 1607599-1.3 Dry Cleaning of Turbocharger - Turbine B 16 01 2 Page 3 (3) General "A-C Cleaner" (Activated Coal) Mitsui Kozan Co. Ltd. (Fuel Dept.) Yamaguchi Bldg., 2-1-1 Nihonbashi Muromachi, Chuo-Ku Tokyo 103, Japan "OMT-701" Marix KK Kimura Bldg., 6-2-1 Shinbashi Minato-Ku, Tokyo 105, Japan Tel.: 03-4 36-63 71,...
  • Page 137 1613418-9.3 Position of Gas outlet on Turbocharger B 16 02 0 Page 1 (2) L28/32H 5-6L28/32H Crankshaft 7-8L28/32H Crankshaft Exhaust flange D. mating dimensions Engine type Hole size No. of holes 5L28/32H 400 mm 540 mm 16 mm 495 mm...
  • Page 138 1613418-9.3 B 16 02 0 Position of Gas outlet on Turbocharger Page 2 (2) L28/32H 9L28/32H Crankshaft Flange 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Exhaust flange D. mating dimensions...
  • Page 139 1609575-0.3 Silencer without Spark Arrestor, Damping 25 dB (A) E 16 04 2 Page 1 (1) L28/32H Design Installation The operating of the silencer is based on the absorp- The silencer may be installed, vertically, horizontally tion system. The Gasflow passes straight-through a or in any position close to the end of the piping.
  • Page 141 1609578-6.3 Silencer without Spark Arrestor, Damping 35 dB (A) E 16 04 3 Page 1 (1) L28/32H Design Installation The operating of the silencer is based on the absorp- The silencer may be installed, vertically, horizontally tion system. The Gasflow passes straight-through a or in any position close to the end of the piping.
  • Page 143 1609582-1.3 Silencer with Spark Arrestor, Damping 25 dB (A) E 16 04 5 Page 1 (1) L28/32H Design Installation The operating of the silencer is based on the absorp- The silencer/spark arrestor has to be installed as tion system. The Gasflow passes straight-through a close to the end of the exhaust pipe as possible.
  • Page 145 1609585-7.3 Silencer with Spark Arrestor, Damping 35 dB (A) E 16 04 6 Page 1 (1) L28/32H Design Installation The operating of the silencer is based on the absorp- The silencer/spark arrestor has to be installed as tion system. The Gasflow passes straight-through a close to the end of the exhaust pipe as possible.

  • Page 147: Speed Control System

    Speed Control System B 17...

  • Page 149: Starting Of Engine

    1607583-4.3 Starting of Engine B 17 00 0 Page 1 (1) General Load 12 minutes The engine may be started and loaded according to If the engine normally runs on HFO preheated fuel the following procedure: must be circulated through the engine while prehea- ting although the engine has run or has been flushed A: Normal start without preheated cooling water.
  • Page 151 1639468-5.0 Governor B 17 01 1 Page 1 (1) General Governor Type As standard, the engines are equipped with a 0% droop is only possible for single engines in solo mechanical - hydraulic Woodward governor type operation. In the case of solo and mains parallel UG8D.

  • Page 153: Monitoring Equipment

    Monitoring Equipment B 18...
  • Page 155 1613494-2.3 Standard Instrumentation B 18 01 1 Page 1 (1) L28/32H One instrument panel consisting of: Type Code Function Pressure gauge PI 01 LT Fresh water - inlet to air-cooler Pressure gauge PI 10 HT Fresh water - inlet engine...
  • Page 157 1607503-3.2 Standard Instrument Panel B 18 05 1 Page 1 (1) In-Line Main Instrument Panel As standard the engine is equipped with an instrument The instrument panel is mounted flexibly on rubber panel, comprising instruments for visual indication of elements and all manometer connections are connec- the most essential pressures.
  • Page 159 Safety and Control System B 19...
  • Page 161 1613514-7.4 B 19 00 0 Operation Data & Set Points Page 1 (2) L28/32H Normal Value at Full load Alarm Set point Autostop of engine Lubricating Oil System Temp. before cooler SAE 30 TI 20 60-70° C TAH 20 90° C...
  • Page 162 1613514-7.4 B 19 00 0 Operation Data & Set Points Page 2 (2) L28/32H Remarks to individual Parameters B. Cooling Water Pressure, Alarm Set Points. As the system pressure in case of pump failure will A. Fuel Oil Pressure, HFO-operation.
  • Page 163 1643414-2.1 Mechanical Overspeed B 19 06 1 Page 1 (1) L28/32H Mechanical Overspeed At the same time the arm (2) presses down the spindle (5), and the pneumatic valve (6) opens, whereby compressed air will be led to the stop...
  • Page 165 1639469-7.2 Starting Box B 19 10 1 Page 1 (1) General Description Engine / Turbocharger RPM The starting box is mounted on the engine's control By activating the "Engine RPM/TC RPM" button, the side. On front of the box there are the following indication is changed.
  • Page 167 1635436-4.2 Converter for Engine RPM Signal B 19 13 1 Page 1 (2) General Engine RPM signals Engine run For measuring the engine's RPM, a pick-up mounted When the engine speed reach 710 RPM the conver- on the engine is used giving a frequency depending ter gives a "engine run"...
  • Page 168 1635436-4.2 B 19 13 1 Converter for Engine RPM Signal Page 2 (2) General Tacho fail The tacho fail signal will be on when everything is All wiring to relay, pick-up and tachometer are made normal. If the pick-up or the converter failed the by MAN B&W, Holeby.
  • Page 169 1631457-0.0 Engine Control Box E 19 06 4 Page 1 (2) General The Safety System Overspeed shutdown The engine control box is watching the most Start failure important safety operating functions of the diesel Wire break engine, i.e. low lub. oil pressure, high cooling water Start interlocks temperature, and overspeed.
  • Page 170 1631457-0.0 E 19 06 4 Engine Control Box Page 2 (2) General If the diesel engine does not start during a starting The engine control box can also be installed in the trial, a potential free switch will give the information engine control room.
  • Page 171 1643403-4.0 Engine Control Box E 19 06 6 Page 1 (2) General Alarm and Safety System Lub. oil inlet temp. Cooling water press. The engine control box is watching all alarm and Tacho failure safety operating functions of the diesel engine. Low supply voltage High supply voltage In case of unintended conditions for the above...
  • Page 172 1643403-4.0 E 19 06 6 Engine Control Box Page 2 (2) General The push buttons for MDO and HFO are lighten push Enclosure: IP 54. buttons to indicate the mode. The engine control box can also be installed in the Engine Control Box Cabinet engine control room.
  • Page 173 1631477-3.3 Prelubricating Oil Pump Starting Box E 19 11 0 Page 1 (2) General Description The pump can be arranged for continuous or inter- mittent running. (For L16/24, L21/31 & L27/38 only The prelubricating oil pump box is for controlling the continuous running is accepted).
  • Page 174 1631477-3.3 E 19 11 0 Prelubricating Oil Pump Starting Box Page 2 (2) General Fig 2 Wiring diagram. 01.10...
  • Page 175 1631478-5.1 High Temperature Preheater Control Box E 19 13 0 Page 1 (2) General Description The preheater control box is for controlling the Depending on the numbers of engines in the plant, the electric heater built onto the engine for preheating of control box can be for one or several engines, however the engines jacket cooling water during stand-still.
  • Page 176 1631478-5.1 E 19 13 0 High Temperature Preheater Control Box Page 2 (2) General 380 V 24 V 440 V 100 VA Fig 2 Wiring diagram. 01.10...
  • Page 177 Foundation B 20...
  • Page 179 Recommendations Concerning Steel Foundations 1613565-0.2 B 20 01 0 for Resilient Mounted GenSets Page 1 (1) General Foundation Recommendations When the generating sets are installed on a trans- verse stiffened deck structure, it is generally re- commended to strengthen the deck by a longitudinal stiffener inline with the resilient supports, see fig.
  • Page 181 1613527-9.1 Resilient Mounting of Generating Sets B 20 01 3 Page 1 (2) General Resilient Mounting of Generating Sets The support of the individual conical mounting can be made in one of the following three ways: On resilient mounted generating sets, the diesel engine and the generator are placed on a common The support between the bottom flange and rigid base frame mounted on the ship's/erection...
  • Page 182 1613527-9.1 B 20 01 3 Resilient Mounting of Generating Sets Page 2 (2) General Adjustment of Engine and Generator on Base Finally, the support can be made by means of Frame chockfast. It is recommended to use two steel shims, the top shim should be loose and have a minimum thickness of 40 mm, the bottom The resilient mounted generating set is normally shim should be cast in chockfast with a thick-...

  • Page 183: Test Running

    Test running B 21...
  • Page 185 1356501-5.5 Test Running of GenSets on DO B 21 01 1 Page 1 (1) General Warming up of GenSets. Load test in hours: (at 750 / 1000 rpm for 50 Hz or 720 / 1200 rpm for 60 Hz) Load (%) American Bureau of Shipping Bureau Veritas Chinese Corp.

  • Page 187: Spare Parts

    Spare Parts E 23...
  • Page 189 1613436-8.1 Weight and Dimensions of Principal Parts E 23 00 0 Page 1 (1) L28/32H Piston approx. 40 kg Cylinder head approx. 200 kg Cylinder head incl. rocker arms approx. 255 kg Cylinder liner approx. 119 kg Connecting rod approx. 81 kg...
  • Page 191 1607521-2.6 Recommended Wearing Parts E 23 04 0 Page 1 (1) L28/32H 99.35...

  • Page 193: Standard Spare Parts

    1613492-9.5 P 23 01 1 Standard Spare Parts Page 1 (2) L28/32H Extent according to the requirements of: For guidance Demands American Bureau of Shipping. Germanischer Lloyd. Bureau Veritas. USSR Register of Shipping. Lloyd's Register of Shipping. Chinese Register. Det Norske Veritas.
  • Page 194 1613492-9.5 P 23 01 1 Standard Spare Parts Page 2 (2) L28/32H Description Qty. Plate Item Engine Frame and Base Frame 61101 Main bearing shells 61101 Thrust washer 61101 Stud 61101 61106 O-ring Turbocharger System 61202 Gasket 61202 O-ring, cooling water connections...
  • Page 195 Tools P 24...
  • Page 197 1613467-9.4 Standard Tools for Normal Maintenance P 24 01 1 Page 1 (2) L28/32H Description Qty. Plate Item Cylinder Head Max. pressure indicator 62005 Lifting tool for cylinder head 62005 Mounting tool for valves 62005 Grinding ring for cyl. head and cyl. liner...
  • Page 198 1613467-9.4 P 24 01 1 Standard Tools for Normal Maintenance Page 2 (2) L28/32H Qty. Plate Item Description Dismantling tool for guide bearing shells 62010 Tool for upper main bearing 62010 Guide tools for mounting of upper guide bearing shell...
  • Page 199 1613460-6.4 Tools for Reconditioning P 24 02 1 Page 1 (1) L28/32H Description Plate Qty. Item Cylinder Head 62005 Grinding table for cyl. head * 62005 Grinding table as above - on stand * 62005 Extractor for valve seat ring...
  • Page 201 1613463-1.2 Extra Tools for Low Dismantling Height P 24 04 1 Page 1 (1) L28/32H Description Plate Item For Lift of Piston and Connecting Rod Collar for connecting rod, complete 62050 1896 Shackle for pull lift 62050 1897 Pull lift, complete...
  • Page 203 Preservation and Packing B 25...
  • Page 205 1350467-1.2 Preservation of Diesel Engine before Dispatch B 25 01 1 Page 1 (1) General Preservation of Diesel Engine: Lubricating oil system. Bright components internal or external on the diesel engine such as crankshaft, camshaft and gear Lub. oil is drained from base frame, lub. oil filter and wheels are covered with Mobilplex 44 or similar.
  • Page 207 1350473-0.3 Preservation of Spare Parts and Tools B 25 01 1 Page 1 (1) General Spare parts and tools. Preservation of supplied spare parts and tools are Smaller boxes containing special tools such as: made as follows: grinding machine for valve seats overall machined parts are dipped in Mobil- arma 633 indicator...

  • Page 209: Lifting Instruction

    1631490-3.0 B 25 03 0 Lifting Instruction Page 1 (1) L28/32H Lifting of Complete Generating Sets. The generating sets should only be lifted in the two wire straps. Normally, the lifting crossbars and the wire straps are mounted by the factory. If not, it must...
  • Page 211 Alternator G 50...
  • Page 213 1613538-7.3 Information from the Alternator supplier G 50 02 8 Page 1 (3) L28/32H Installation aspects. For water cooled alternators the flanges for cooling water should be placed on the left side of the alternator For mounting of diesel engine and alternator on a seen from the shaft end.
  • Page 214 1613538-7.3 G 50 02 8 Information from the Alternator supplier Page 2 (3) L28/32H Project Information should as a minimum contain the For air cooled alternators following information following documentation: is required: General description of alternator. Max. permissible ambient inlet air temp.
  • Page 215 1613538-7.3 Information from the Alternator supplier G 50 02 8 Page 3 (3) L28/32H The following components, which are part of the complete rotor, must be mentioned: Shaft Pole wheel Exciter Ventilator The shaft dimensions for alternator should be ac- Max.
  • Page 217 1613562-5.3 G 50 04 0 Engine/Alternator Type Page 1 (1) L28/32H Engine speed 720/750 RPM Standard Alternative option Engine type Alternator type Requirements Alternator type Requirements 5L28/32H B 16 None B 20 Elastic coupling 6L28/32H B 16 None B 20...

This manual is also suitable for:

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