Two Stroke Engines.pdf

L42MC Mk 6 Project Guide

Two-stroke Engines

This Project Guide is intended to provide the information necessary for the layout of

a marine propulsion plant.

The information is to be considered as preliminary and is intended for the project

stage only. It provides the general technical data available at the date of issue.

It should be noted that all figures, values, measurements or information about per-

formance stated in this project guide are for guidance only and shall not be used

for detailed design purposes or as a substitute for specific drawings and instruc-

tions prepared for such purposes.

The final and binding design and outlines are to be supplied by our licensee, the

engine maker, see Chapter 10 of this Project Guide.

In order to facilitate negotiations between the yard, the engine maker and the final

user, a set of ‘Extent of Delivery’ forms is available in which the basic and the op-

tional executions are specified.

This Project Guide and the ‘Extent of Delivery’ forms are available on a CD-ROM

and can also be found at the Internet address www.manbw.com under ‘Quicklinks’

→

6th Edition

December 2005

Two-stroke, from where they can be downloaded’.

Contents:

Engine Design

Engine Layout and Load Diageams, SFOC

Turbocharger Choice

Electricity Production

Installation Aspects

Auxiliary Systems

Vibration Aspects

Instrumentation

Dispatch Pattern, Testing, Spares and Tools

Documentation

Scaled Engine Outline

MAN B&W Diesel A/S

L42MC Project Guide

Contents

Subject

Page

Engine Design

Description of designation

1.01

Power, speed and SFOC

1.02

Engine power range and fuel consumption

1.03

Performance curves for S50MC-C without VIT fuel pumps

1.04

Description of engine

1.05-1.11

Engine cross section

1.12

Engine Layout and Load Diagrams, SFOC

Engine layout and load diagrams

2.01-2.11

Specific fuel oil consumption

2.12-2.15

Fuel consumption at an arbitrary load

2.16

Emission control

2.17

Turbocharger Choice

Turbocharger types

3.01-3.07

Total by-pass for emergency running

3.08

Electricity Production

Power Take Off (PTO)

4.01-4.03

Power Take Off/Renk Constant Frequency (PTO/RCF)

4.04-4.11

Power Take Off/Gear Constant Ratio BW IV/GCR

4.12

Power Take Off/Gear Constant Ratio BW II/GCR

4.13

Holeby GenSets

4.14-4.17

Installation Aspects

Installation aspects

5.01-5.03

Space requirement for the engine

5.04-5.05

Crane beams for overhaul of turbocharger

5.06

Engine room crane

5.07

Overhaul with double-jib crane

5.08-5.09

Engine outline

5.10-5.11

Centre of gravity

5.12

Water and oil in engine

5.13

Gallery outline

5.14-5.15

Engine pipe connections

5.16-5.18

List of counterflanges

5.19-5.20

Arrangement of holding down bolts

5.21

Profile of engine seating

5.22-5.25

Top bracing

5.26-5.27

Earthing device

5.28

400 000 050

178 61 64

MAN B&W Diesel A/S

L42MC Project Guide

Contents

Subject

Page

Auxiliary Systems

6.01 List of capacities

6.01.01-6.01.18

6.02 Fuel oil system

6.02.01-6.02.10

6.03 Lubricating and cooling oil system

6.03.01-6.03.09

6.04 Cylinder lubricating oil system

6.04.01-6.04.04

6.05 Cleaning system, stuffing box drain oil

6.05.01-6.05.03

6.06 Cooling water systems

6.06.01-6.06.08

6.07 Central cooling water system

6.07.01-6.07.03

6.08 Starting and control air systems

6.08.01-6.08.05

6.09 Scavenge air system

6.09.01-6.09.08

6.10 Exhaust gas system

6.10.01-6.10.10

6.11 Manoeuvring system

6.11.01-6.11.11

Vibration Aspects

Vibration aspects

7.01-7.08

Instrumentation

8.01-8.02

PMI and CoCoS

8.03

Identification of instruments

8.04

Local instruments on engine

8.05-8.06

List og sensor for CoCoS

8.07-8.09

Location of basic measuring points on engine

8.10-8.12

Control devices on engine

8.13

Pipes on engine for basic pressure gauges and pressure switches

8.14

Panels and sensors for alarm and safety systems

8.15

Alarm sensors for UMS

8.16-8.18

Slow down functions for UMS

8.19

Shut down functions for AMS and UMS

8.20

Drain box with fuel oil leakage

8.21

Oil mist detector pipes on engine

8.22

Example of terminal box

8.23

Example of wiring diagram

8.24

Dispatch Pattern, Testing, Spares and Tools

Dispatch pattern, testing, spares and tools

9.01-9.02

Specification for painting of main engine

9.03

Dispatch patterns

9.04-9.07

Shop trial running/delivery test

9.08

List of spares, unrestricted service

9.09

Additional spare parts recommended by MAN B&W

9.10-9.12

Wearing parts

9.13-9.16

Large spare parts, dimensions and masses

9.17

List of tools

9.18-9.19

Dimensions and masses of tools

9.20-9.24

Tool panels

9.25

400 000 050

178 61 64

MAN B&W Diesel A/S

L42MC Project Guide

Contents

Subject

Page

10 Documentation

Documentation

10.01-10.07

11 Scaled Engine Outline

Scaled engine outline

11.01-11.04

400 000 050

178 61 64

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