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

MARL054 Mapping and Delivery Guide
Demonstrate basic knowledge of marine auxiliary boilers

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MARL054 - Demonstrate basic knowledge of marine auxiliary boilers
Description
Employability Skills
Learning Outcomes and Application This unit involves the skills and knowledge required to operate and maintain marine auxiliary boilers 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:

mountings and fittings on auxiliary boilers, including:

air release cock

auxiliary steam stop valve

blow down valve

feed check or control valve

main steam stop valve

pressure gauge connection

safety valves

sampling connection

scum valve

water level gauge

whistle stop valve.
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: Distinguish between different types of auxiliary boilers
  • Design and use of water tube and fire tube auxiliary boilers are compared and contrasted
       
Element: Movement of water and gas in an operating boiler is sketched
       
Element: How variations to operating pressure and saturation temperature in an auxiliary boiler can be used to get wet, dry or superheated steam is explained
       
Element: Recognise different functions of steam and different components of steam systems
  • Key features of steam and other heating systems are compared and contrasted
       
Element: Steam side requirements of an auxiliary steam turbo alternator are compared and contrasted with other steam-powered machinery
       
Element: Typical steam and condensate system are outlined
       
Element: Explain fuel oil system of auxiliary boilers
  • Combustion process is explained and factors that affect combustion in a boiler are outlined
       
Element: Differentiation is made between different burner types
       
Element: Operation of a complete fuel oil system for an auxiliary boiler, including the functions of components for automatic combustion control, is outlined
       
Element: Explain procedures for operating fired and unfired boilers
  • Locations of all mountings and fittings on auxiliary boilers are identified and their functions are outlined
       
Element: Purpose of all alarms and shutdowns incorporated in auxiliary boilers is clarified
       
Element: Types and operation of safety valves are outlined
       
Element: Procedure for lighting off a boiler from cold is clarified
       
Element: Procedure for laying up for short and long periods, including full blow down and shutdown procedures, is clarified
       
Element: Procedure for isolating an auxiliary boiler after shutdown is clarified
       
Element: Explain procedures for sampling and testing boiler water
  • Effects of poor water treatment practices on safety and boiler function are identified
       
Element: Correct procedure for taking boiler and feed water sample and possible errors that might occur are clarified
       
Element: Common water tests carried out are outlined and typical results are stated
       
Element: Chemicals used for treatment of boiler water are named and acceptable range of chemical reserves found in boiler waters are confirmed
       
Element: Explain procedure for maintaining water level in the boiler
  • Method of testing and changing a gauge glass is outlined
       
Element: Effects of blockages in water, steam and drain cocks on levels in gauge glass are outlined
       
Element: Procedure for when a gauge glass apparently shows no water is clarified
       
Element: Explain common hazards and defects and relevant prevention/ control procedures
  • Hazards and defects associated with auxiliary boilers are identified
       
Element: How water hammer can be prevented in auxiliary boilers is outlined
       
Element: Symptoms, causes, effects and actions to be taken in the event of oil contamination of boiler water are determined
       
Element: Difference between and measures taken to avoid fire and water side explosions are clarified
       
Element: Causes, mechanism, prevention and control of economiser fires are detailed
       


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 information related to marine auxiliary boilers

adjusting excess air proportional relating to combustion processes and fuel atomisation process

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

explaining basic operation of marine auxiliary boilers

identifying and applying relevant solutions for addressing problems associated with marine auxiliary boilers

identifying and interpreting diagnostic information and performing mathematical calculations related to operating, maintaining and repairing marine auxiliary boilers

identifying methods, procedures and materials needed for operating, maintaining and repairing marine auxiliary boilers

imparting knowledge and ideas through verbal, written and visual means

monitoring exhausted gas

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 auxiliary boilers.

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 operation of boilers and steam systems

combustion in boilers and related safety procedures, including importance of purging a boiler and other safety precautions taken when firing a boiler

combustion processes, including carbon dioxide, oxygen, nitrogen, sulphur dioxide and water vapor

common boiler defects and repair procedures

construction and operation of boilers, including fire tube and water tube, including:

general construction details of a fire tube boiler

material used commonly for construction

corrugated furnaces, including:

higher strength and flexibility in comparison to plain furnaces

fittings mounted on boilers

fuel atomisation process, including atomiser design, air register design and viscosity of fuel and burners

fuel oil system for an auxiliary boiler

hazards and defects, including:

chemical hazards

enclosed space

illumination of work area

machine guarding

manual handling

materials

rubbish and combustible

steam and fuel leaks

thermal hazards

trips

hazards associated with running boiler plant

operating principles relating to steam generation in fired and unfired boilers

principles of boiler operation in normal and emergency situations

procedures for maintaining water level in boilers

purpose of alarms and shutdowns in marine boilers

shells of cylindrical form, including:

higher strength and weight ratios

sited vertically or horizontally

stays, including forms of solid bars, thick tubes or plate girders

treatment, sampling and testing of boiler water

types of auxiliary boilers and typical operating pressures and temperatures

typical feed systems for marine boilers

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
Design and use of water tube and fire tube auxiliary boilers are compared and contrasted 
 
 
Key features of steam and other heating systems are compared and contrasted 
 
 
Combustion process is explained and factors that affect combustion in a boiler are outlined 
 
 
Locations of all mountings and fittings on auxiliary boilers are identified and their functions are outlined 
 
 
 
 
 
Effects of poor water treatment practices on safety and boiler function are identified 
 
 
 
Method of testing and changing a gauge glass is outlined 
 
 
Hazards and defects associated with auxiliary boilers are identified 
 
 
 
 

Forms

Assessment Cover Sheet

MARL054 - Demonstrate basic knowledge of marine auxiliary boilers
Assessment task 1: [title]

Student name:

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

Student signature:

Result: Competent Not yet competent

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Assessment Record Sheet

MARL054 - Demonstrate basic knowledge of marine auxiliary boilers

Student name:

Student ID:

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

(add lines for each task)

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Overall assessment result: Competent Not yet competent

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