Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MARL057 Mapping and Delivery Guide
Demonstrate basic knowledge of marine diesel engines and systems

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MARL057 - Demonstrate basic knowledge of marine diesel engines and systems
Description
Employability Skills
Learning Outcomes and Application This unit involves the skills and knowledge required to operate and maintain marine diesel engines and systems on a commercial vessel.This unit applies to people working in the maritime industry in the capacity of:Electro-Technical Officer (STCW Electro-Technical Officer Unlimited)Engineer Class 3 Near CoastalEngineer Watchkeeper (STCW Engineer Watchkeeper Unlimited). Licensing/Regulatory InformationLegislative and regulatory requirements are applicable to this unit. Regulatory requirements include STCW International Maritime Organization (IMO) model course competencies and areas of knowledge, understanding and proficiency, together with the estimated total hours required for lectures and practical exercises. Teaching staff should note that timings are suggestions only and should be adapted to suit individual groups of trainees depending on their experience, ability, equipment and staff available for training.Near Coastal Qualifications:This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as an Engineer Class 3 Near Coastal as defined in the Marine Order 505 (Certificates of competency - National Law) 2013.Blue Waters Qualifications:This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as an Electro-Technical Officer (STCW Electro-Technical Officer Unlimited) or Engineer Watchkeeper (STCW Engineer Watchkeeper Unlimited) and to meet regulatory requirements this unit must be delivered consistent with Marine Orders and with the relevant sections of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW).
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Practical assessment must occur in a workplace, or realistic simulated workplace, under the normal range of workplace conditions.

Simulations and scenarios may be used where situations cannot be provided in the workplace or may occur only rarely, in particular for situations relating to emergency procedures and adverse weather conditions where assessment would be unsafe, impractical or may lead to environmental damage.

Resources for assessment must include access to:

applicable documentation, such as legislation, regulations, codes of practice, workplace procedures and operational manuals

tools, equipment, machinery, materials and relevant personal protective equipment (PPE) currently used in industry, including:

diesel engine components:

camshafts

crankshafts

cross-heads

cylinder heads

exhaust valves

frames

fuel injectors

fuel pumps

liners

pistons

turbochargers

valves and rocker gear.
Prerequisites/co-requisites
Competency Field L - Engineering
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Outline stages of combustion in two-stroke and four-stroke cycle diesel engines
  • Two-stroke and four-stroke cycle diesel engines are compared and contrasted
       
Element: Methods and diagnostic information used in determining engine combustion characteristics are specified
       
Element: Diagnostic information is used to identify and interpret common combustion faults and to produce typical diagrams for analysing faults
       
Element: Explain means of pressure-charging diesel engines
  • Pressure-charging principles and their influence on engine design and waste heat recovery are explained
       
Element: Different methods of pressure-charging diesel engines are clarified
       
Element: Emergency isolation procedures used when pressure-charging diesel engines are clarified
       
Element: Explain operation of diesel engine governors
  • Governing principles, common governor types and related controls are outlined
       
Element: Different requirements for governing diesel engines for propulsion and power generation are explained
       
Element: Problems of mismatched engine sizes/prime mover types when sharing common loads are outlined
       
Element: Explain properties of materials used in construction of engine components
  • Properties of materials used in construction of engine components are specified
       
Element: Dynamic stresses and loads, materials and service limitations of engine components are outlined
       
Element: Construction and operating cycle forces of diesel engine components are outlined
       
Element: Relationship between critical speed, use of detuners/dampers and materials in engine components is clarified
       
Element: Explain safe working practices associated with diesel engines during maintenance, repair and operation
  • Safe practices for isolating propulsion and power generation diesel engines prior to work commencement are confirmed
       
Element: Personal protective (PPE) to be used during all aspects of diesel maintenance is identified
       
Element: Hazards associated with working on diesel engines and systems, including working in enclosed spaces, are identified
       
Element: Correct procedures for using hydraulic tools and high-pressure fuel injection test equipment are clarified
       
Element: Purpose, operation and maintenance of safety interlocks and protective cut-outs of engine manoeuvring systems is determined
       
Element: Explain procedures for preventing and responding to crankcase and air-line explosions, and scavenge and uptake fires
  • Causes, symptoms and means of preventing and extinguishing uptake and economiser fires are outlined
       
Element: Risks of continued service with an isolated waste heat unit are assessed
       
Element: Causes, symptoms, methods of extinguishing and prevention of scavenge fires are evaluated
       
Element: Causes and hazards associated with starting air-line explosions are identified
       
Element: Protective devices fitted to air starting systems to minimise risk of explosion, and routine inspection and maintenance required are detailed
       
Element: Causes and ways of preventing crankcase explosions in both diesel and dual-fuel engines are outlined
       
Element: Procedure to be taken in the event of an early warning of a hazardous crankcase atmosphere and required procedure to be followed after engine has stopped are clarified
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

accessing diagnostic information related to marine diesel engines and systems

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

explaining basic operation of marine diesel engines and systems

identifying causes associated with starting air-line explosions, including:

airlock in feed water system

cleanliness of economiser tubes

failure of economiser feed pump

loss of feed water supply

identifying and applying relevant solutions for addressing problems associated with marine diesel engines and systems

identifying and interpreting diagnostic information, and performing mathematical calculations related to operating, maintaining and repairing marine diesel engines and systems

identifying methods, procedures and materials needed for operating, maintaining and repairing marine diesel engines and systems

imparting knowledge and ideas through verbal, written and visual means

providing accurate and reliable information

providing appropriate level of detail in responses

reading and interpreting manuals, technical specifications, safety data sheets (SDS)/material safety data sheets (MSDS) and manufacturer guides related to operating, maintaining and repairing marine diesel engines and systems.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

basic principles of diesel engine operation, including:

basic construction

engine principles

engine types

fuel atomisation and combustion

heat-engine cycle

ideal gas cycle

common combustion faults, including:

engine cylinder fuel supply

lack of total combustion

components of diesel engines

crankcase and air-line explosions, scavenge and uptake fires

diesel engine, including:

medium speed and high-speed diesel engine

slow-speed diesel engine

diesel engine:

lubrication systems

propulsion and power generation

diagnostic information, including:

engine efficiency

fuel consumption

temperature

hazards, including:

acids

chemicals

defective or bypassed machinery protective devices

defective or inappropriately adjusted exhaust systems

enclosed spaces

flammable liquids under pressure

hydrocarbons

leaking oil and fuel

lifting heavy components both unaided and with lifting gear

manoeuvring systems of diesel engines

methods of pressure-charging diesel engines, including:

exhaust gas turbocharging

positive displacement engine-driven blowers

under-piston assistance

pressure-charging diesel engines, including common service faults, actions to rectify faults, emergency operation and isolation procedures

properties and characteristics of fires

safe working practices associated with diesel engines during operation, maintenance and repair

starting methods of diesel engines

work health and safety (WHS)/occupational health and safety (OHS) legislation, policies and procedures.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Two-stroke and four-stroke cycle diesel engines are compared and contrasted 
 
 
Pressure-charging principles and their influence on engine design and waste heat recovery are explained 
 
 
Governing principles, common governor types and related controls are outlined 
 
 
Properties of materials used in construction of engine components are specified 
 
 
 
Safe practices for isolating propulsion and power generation diesel engines prior to work commencement are confirmed 
 
 
 
 
Causes, symptoms and means of preventing and extinguishing uptake and economiser fires are outlined 
 
 
 
 
 
 

Forms

Assessment Cover Sheet

MARL057 - Demonstrate basic knowledge of marine diesel engines and systems
Assessment task 1: [title]

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I declare that the assessment tasks submitted for this unit are my own work.

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Result: Competent Not yet competent

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Assessment Record Sheet

MARL057 - Demonstrate basic knowledge of marine diesel engines and systems

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Assessment task 1: [title] Result: Competent Not yet competent

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Overall assessment result: Competent Not yet competent

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