Assessor Resource

MARL024
Demonstrate intermediate knowledge of marine auxiliary boilers

Assessment tool

Version 1.0
Issue Date: April 2024


This unit involves the skills and knowledge required to operate and maintain marine auxiliary boilers on a commercial vessel. This includes analysing the responsibilities of an Engineer Class 2 in relation to auxiliary boiler and steam plant of a vessel, the design of marine auxiliary boilers, the operation of thermal fluid heating plants, the layout of marine stem systems and components, and procedures for inspecting marine auxiliary boilers and associated plant.

This unit applies to the work of a Marine Engineer Class 2 on commercial vessels greater than 3000 kW and forms part of the requirements for the Certificate of Competency Marine Engineer Class 2 issued by the Australian Maritime Safety Authority (AMSA).

No licensing, legislative or certification requirements apply to this unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)


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.

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Outline responsibilities of an Engineer Class 2 in relation to auxiliary boiler and steam plant of a vessel

1.1

Commonwealth, state/territory and local legislation and regulations that relate to marine boilers and steam plant in terms of safety, repairs and pollution, including implementation, is identified

1.2

Safe operating practices for all steam plant are examined and standing orders as to their operation are prepared or modified

1.3

Procedure for establishing engine room staff who are fully conversant with safe practices for boiler operation is outlined

2

Evaluate design and construction of marine auxiliary boilers

2.1

Typical boiler types illustrating cross section, attachments and location of all fittings, mountings, scantlings and method of achieving circulation are examined

2.2

Material requirements for boiler components are identified

2.3

Construction of different types of boilers is analysed and difference recorded

3

Evaluate design and operation of thermal fluid heating plants

3.1

Different gauge glass types are compared

3.2

Typical thermal fluid heating plant is explained and advantages and limitations of the system are identified

3.3

Locations and functions of all fittings and safety devices in a typical thermal fluid system are explained

3.4

Properties of thermal fluid, effects of contamination and methods of testing fluid are analysed

4

Evaluate layout and design of marine steam systems and components

4.1

Thermal fluid heating is compared to conventional steam plant

4.2

Typical steam system layout showing location of all components on feed and heating side is detailed

4.3

Material requirements for steam system components are identified

4.4

Reasons for operating plant and systems at nominated temperatures and pressures, and effects of departing from these parameters are explained

5

Outline procedure for inspecting marine auxiliary boilers and associated plant

5.1

Symptoms of faults in steam traps, hot wells, de-aerators, condensers, evaporators and requirements for contamination prevention between systems, are analysed

5.2

Procedure for shutting down, isolating and opening up a boiler for inspection or during an emergency is clarified

5.3

Possible defects that may occur in a boiler, fire and water side, their location and effects are analysed

5.4

Repair procedures commonly employed for damaged boilers are examined and limitations of such repairs are explained

5.5

Procedures for leak detecting in boilers and steam equipment are clarified and remedial actions are explained

5.6

Mechanism of economiser fires are analysed

6

Differentiate between safety valves types

6.1

Procedure for detecting economiser fires, actions for controlling after occurrence and preventative measures are clarified

6.2

Common types of boiler safety valves are analysed and sketched, and how they are classified in terms of valve lift is explained

6.3

Materials used in safety valves are identified and operational problems that can occur are analysed

6.4

Procedure for setting valve lift pressure is established and precautions necessary when testing valve on fired and non-fired boilers are examined

7

Evaluate problems associated with feed and boiler water

7.1

Defects that may be found when dismantling a safety valve for survey are analysed

7.2

Causes of scaling and corrosion of water side of a boiler and how these can be minimised are analysed

7.3

Acceptable operational range and effects of contamination on boiler chemical reserves are identified

7.4

Reliability of boiler water test results are analysed in relation to sampling procedure, testing equipment and shelving of test chemicals

7.5

Different tests carried out on boiler water are explained and implications of out-of-range results are interpreted

7.6

Use of different chemicals to treat and condition boiler water is assessed

8

Evaluate marine fuel systems

8.1

Procedure to be adopted when boiler is severely contaminated from different sources is outlined

8.2

Boiler fuel system, its components and maintenance procedure are detailed

8.3

Combustion process, its monitoring system and requirements for good combustion are analysed

8.4

Different types of burners are compared and contrasted and how atomisation is achieved is explained

8.5

Operation of a burner management system that incorporates pressure and level control is explained

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

accessing information related to marine auxiliary boilers

applying relevant work health and safety/occupational health and safety (WHS/OHS) requirements and work practices

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

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

reading and interpreting manuals, technical specifications, safety data sheets/material safety data sheets 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, performance criteria and range of conditions 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

common boiler defects and repair procedures

fittings mounted on boilers

fuel oil system for an auxiliary boiler

hazards associated with running boiler plant

intermediate operation of marine auxiliary boilers

marine boiler inspection procedures

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 shut downs in marine boilers

safety valves

treatment, sampling and testing of feed and boiler water

types of auxiliary boilers, and typical operating pressures and temperatures

typical feed systems for marine boilers

WHS/OHS legislation, policies and procedures.

Assessors must satisfy National Vocational Education and Training Regulator (NVR)/Australian Quality Training Framework (AQTF) assessor requirements.

Assessment must satisfy the National Vocational Education and Training Regulator (NVR)/Australian Quality Training Framework (AQTF) standards.

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.

Assessment must occur in workplace operational situations or where these are not available, in simulated workplace operational situations or an industry-approved marine operations site that replicates workplace conditions where intermediate knowledge of marine auxiliary boilers can be demonstrated.

Resources for assessment include access to:

applicable documentation including workplace procedures, regulations, codes of practice and operation manuals

diagrams, specifications and other information related to marine auxiliary boilers

technical reference library with current publications on basic marine auxiliary boilers

tools, equipment, materials and personal protective equipment currently used in industry required to operate and maintain marine auxiliary boilers.

Performance should be demonstrated consistently over time and in a suitable range of contexts.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, 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.

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Outline responsibilities of an Engineer Class 2 in relation to auxiliary boiler and steam plant of a vessel

1.1

Commonwealth, state/territory and local legislation and regulations that relate to marine boilers and steam plant in terms of safety, repairs and pollution, including implementation, is identified

1.2

Safe operating practices for all steam plant are examined and standing orders as to their operation are prepared or modified

1.3

Procedure for establishing engine room staff who are fully conversant with safe practices for boiler operation is outlined

2

Evaluate design and construction of marine auxiliary boilers

2.1

Typical boiler types illustrating cross section, attachments and location of all fittings, mountings, scantlings and method of achieving circulation are examined

2.2

Material requirements for boiler components are identified

2.3

Construction of different types of boilers is analysed and difference recorded

3

Evaluate design and operation of thermal fluid heating plants

3.1

Different gauge glass types are compared

3.2

Typical thermal fluid heating plant is explained and advantages and limitations of the system are identified

3.3

Locations and functions of all fittings and safety devices in a typical thermal fluid system are explained

3.4

Properties of thermal fluid, effects of contamination and methods of testing fluid are analysed

4

Evaluate layout and design of marine steam systems and components

4.1

Thermal fluid heating is compared to conventional steam plant

4.2

Typical steam system layout showing location of all components on feed and heating side is detailed

4.3

Material requirements for steam system components are identified

4.4

Reasons for operating plant and systems at nominated temperatures and pressures, and effects of departing from these parameters are explained

5

Outline procedure for inspecting marine auxiliary boilers and associated plant

5.1

Symptoms of faults in steam traps, hot wells, de-aerators, condensers, evaporators and requirements for contamination prevention between systems, are analysed

5.2

Procedure for shutting down, isolating and opening up a boiler for inspection or during an emergency is clarified

5.3

Possible defects that may occur in a boiler, fire and water side, their location and effects are analysed

5.4

Repair procedures commonly employed for damaged boilers are examined and limitations of such repairs are explained

5.5

Procedures for leak detecting in boilers and steam equipment are clarified and remedial actions are explained

5.6

Mechanism of economiser fires are analysed

6

Differentiate between safety valves types

6.1

Procedure for detecting economiser fires, actions for controlling after occurrence and preventative measures are clarified

6.2

Common types of boiler safety valves are analysed and sketched, and how they are classified in terms of valve lift is explained

6.3

Materials used in safety valves are identified and operational problems that can occur are analysed

6.4

Procedure for setting valve lift pressure is established and precautions necessary when testing valve on fired and non-fired boilers are examined

7

Evaluate problems associated with feed and boiler water

7.1

Defects that may be found when dismantling a safety valve for survey are analysed

7.2

Causes of scaling and corrosion of water side of a boiler and how these can be minimised are analysed

7.3

Acceptable operational range and effects of contamination on boiler chemical reserves are identified

7.4

Reliability of boiler water test results are analysed in relation to sampling procedure, testing equipment and shelving of test chemicals

7.5

Different tests carried out on boiler water are explained and implications of out-of-range results are interpreted

7.6

Use of different chemicals to treat and condition boiler water is assessed

8

Evaluate marine fuel systems

8.1

Procedure to be adopted when boiler is severely contaminated from different sources is outlined

8.2

Boiler fuel system, its components and maintenance procedure are detailed

8.3

Combustion process, its monitoring system and requirements for good combustion are analysed

8.4

Different types of burners are compared and contrasted and how atomisation is achieved is explained

8.5

Operation of a burner management system that incorporates pressure and level control is explained

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

Marine boilers and steam plant include one or more of the following:

condensors

economiser

feed pumps

fired

high pressure

low pressure

medium pressure

steam – steam generators

unfired

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

accessing information related to marine auxiliary boilers

applying relevant work health and safety/occupational health and safety (WHS/OHS) requirements and work practices

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

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

reading and interpreting manuals, technical specifications, safety data sheets/material safety data sheets 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, performance criteria and range of conditions 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

common boiler defects and repair procedures

fittings mounted on boilers

fuel oil system for an auxiliary boiler

hazards associated with running boiler plant

intermediate operation of marine auxiliary boilers

marine boiler inspection procedures

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 shut downs in marine boilers

safety valves

treatment, sampling and testing of feed and boiler water

types of auxiliary boilers, and typical operating pressures and temperatures

typical feed systems for marine boilers

WHS/OHS legislation, policies and procedures.

Assessors must satisfy National Vocational Education and Training Regulator (NVR)/Australian Quality Training Framework (AQTF) assessor requirements.

Assessment must satisfy the National Vocational Education and Training Regulator (NVR)/Australian Quality Training Framework (AQTF) standards.

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.

Assessment must occur in workplace operational situations or where these are not available, in simulated workplace operational situations or an industry-approved marine operations site that replicates workplace conditions where intermediate knowledge of marine auxiliary boilers can be demonstrated.

Resources for assessment include access to:

applicable documentation including workplace procedures, regulations, codes of practice and operation manuals

diagrams, specifications and other information related to marine auxiliary boilers

technical reference library with current publications on basic marine auxiliary boilers

tools, equipment, materials and personal protective equipment currently used in industry required to operate and maintain marine auxiliary boilers.

Performance should be demonstrated consistently over time and in a suitable range of contexts.
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
Commonwealth, state/territory and local legislation and regulations that relate to marine boilers and steam plant in terms of safety, repairs and pollution, including implementation, is identified 
Safe operating practices for all steam plant are examined and standing orders as to their operation are prepared or modified 
Procedure for establishing engine room staff who are fully conversant with safe practices for boiler operation is outlined 
Typical boiler types illustrating cross section, attachments and location of all fittings, mountings, scantlings and method of achieving circulation are examined 
Material requirements for boiler components are identified 
Construction of different types of boilers is analysed and difference recorded 
Different gauge glass types are compared 
Typical thermal fluid heating plant is explained and advantages and limitations of the system are identified 
Locations and functions of all fittings and safety devices in a typical thermal fluid system are explained 
Properties of thermal fluid, effects of contamination and methods of testing fluid are analysed 
Thermal fluid heating is compared to conventional steam plant 
Typical steam system layout showing location of all components on feed and heating side is detailed 
Material requirements for steam system components are identified 
Reasons for operating plant and systems at nominated temperatures and pressures, and effects of departing from these parameters are explained 
Symptoms of faults in steam traps, hot wells, de-aerators, condensers, evaporators and requirements for contamination prevention between systems, are analysed 
Procedure for shutting down, isolating and opening up a boiler for inspection or during an emergency is clarified 
Possible defects that may occur in a boiler, fire and water side, their location and effects are analysed 
Repair procedures commonly employed for damaged boilers are examined and limitations of such repairs are explained 
Procedures for leak detecting in boilers and steam equipment are clarified and remedial actions are explained 
Mechanism of economiser fires are analysed 
Procedure for detecting economiser fires, actions for controlling after occurrence and preventative measures are clarified 
Common types of boiler safety valves are analysed and sketched, and how they are classified in terms of valve lift is explained 
Materials used in safety valves are identified and operational problems that can occur are analysed 
Procedure for setting valve lift pressure is established and precautions necessary when testing valve on fired and non-fired boilers are examined 
Defects that may be found when dismantling a safety valve for survey are analysed 
Causes of scaling and corrosion of water side of a boiler and how these can be minimised are analysed 
Acceptable operational range and effects of contamination on boiler chemical reserves are identified 
Reliability of boiler water test results are analysed in relation to sampling procedure, testing equipment and shelving of test chemicals 
Different tests carried out on boiler water are explained and implications of out-of-range results are interpreted 
Use of different chemicals to treat and condition boiler water is assessed 
Procedure to be adopted when boiler is severely contaminated from different sources is outlined 
Boiler fuel system, its components and maintenance procedure are detailed 
Combustion process, its monitoring system and requirements for good combustion are analysed 
Different types of burners are compared and contrasted and how atomisation is achieved is explained 
Operation of a burner management system that incorporates pressure and level control is explained 

Forms

Assessment Cover Sheet

MARL024 - Demonstrate intermediate knowledge of marine auxiliary boilers
Assessment task 1: [title]

Student name:

Student ID:

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

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MARL024 - Demonstrate intermediate knowledge of marine auxiliary boilers

Student name:

Student ID:

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

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: