Demonstrate advanced knowledge of marine steam turbines and main boilers

Formats and tools

Unit Description
Reconstruct the unit from the xml and display it as an HTML page.
Assessment Tool
an assessor resource that builds a framework for writing an assessment tool
Assessment Template
generate a spreadsheet for marking this unit in a classroom environment. Put student names in the top row and check them off as they demonstrate competenece for each of the unit's elements and performance criteria.
Assessment Matrix
a slightly different format than the assessment template. A spreadsheet with unit names, elements and performance criteria in separate columns. Put assessment names in column headings to track which performance criteria each one covers. Good for ensuring that you've covered every one of the performance criteria with your assessment instrument (all assessement tools together).
Wiki Markup
mark up the unit in a wiki markup codes, ready to copy and paste into a wiki page. The output will work in most wikis but is designed to work particularly well as a Wikiversity learning project.
Evidence Guide
create an evidence guide for workplace assessment and RPL applicants
Competency Mapping Template
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners. A template for developing assessments for a unit, which will help you to create valid, fair and reliable assessments for the unit, ready to give to trainers and students
Observation Checklist
create an observation checklist for workplace assessment and RPL applicants. This is similar to the evidence guide above, but a little shorter and friendlier on your printer. You will also need to create a seperate Assessor Marking Guide for guidelines on gathering evidence and a list of key points for each activity observed using the unit's range statement, required skills and evidence required (see the unit's html page for details)

Self Assessment Survey
A form for students to assess thier current skill levels against each of the unit's performance criteria. Cut and paste into a web document or print and distribute in hard copy.
Moodle Outcomes
Create a csv file of the unit's performance criteria to import into a moodle course as outcomes, ready to associate with each of your assignments. Here's a quick 'how to' for importing these into moodle 2.x
Registered Training Organisations
Trying to find someone to train or assess you? This link lists all the RTOs that are currently registered to deliver MARL6022A, 'Demonstrate advanced knowledge of marine steam turbines and main boilers'.
Google Links
links to google searches, with filtering in place to maximise the usefulness of the returned results
Books
Reference books for 'Demonstrate advanced knowledge of marine steam turbines and main boilers' on fishpond.com.au. This online store has a huge range of books, pretty reasonable prices, free delivery in Australia *and* they give a small commission to ntisthis.com for every purchase, so go nuts :)


Elements and Performance Criteria

1

Analyse methods of improving plant efficiency

1.1

Increase in Rankine efficiency of plant by increasing the pressure and temperature is analysed

1.2

How regenerative feed heating and steam reheating increases overall plant efficiency is shown on an enthalpy/entropy diagram

1.3

Efficiency calculations and performance evaluation for boilers, turbines, feed systems and total plant are performed

2

Analyse changes in feed system that occur during fluctuating loads

2.1

Changes that occur during fluctuating loads are identified, detailing how make up to system and dump from system are performed

2.2

Condenser level control methods, how condenser is supported and how expansion stresses are avoided are explained

2.3

Loss of efficiency when heat transfer rate is interrupted is explained

2.4

Test procedure to identify leaks in a condenser is created

2.5

Types, features, common defects and maintenance requirements of two-stage and super cavitating extraction pumps are compared and contrasted

2.6

Effects of air leaks in feed system and ineffective air removal in air ejector are explained

2.7

Operation of a vacuum pump for air removal from a condenser is explained

2.8

Operation of a turbo feed pump differential pressure governor taking into account constant pressure, increasing pressure and decreasing pressure differential governing is explained

2.9

Alarms, shutdowns, automatic cut-in arrangements and testing of over speed trips for a boiler feed pump are outlined

3

Analyse design and construction of high-pressure water tube boilers and ancillary equipment

3.1

Temperature load relationships and temperature control of superheater are analysed

3.2

Operation of superheater with parallel, contra and cross flow of gas/steam flow is predicted

3.3

Correct material for high temperature operation of superheater tubes and headers is identified

3.4

Tube fixing and support arrangements for superheater elements are explained

3.5

Burner tip design and operation for steam atomising oil burners are compared

3.6

Features of a three-element water level control system and relationship with burner management system are outlined

3.7

Operation of a combustion control system fitted with cross limits on air and fuel is explained

4

Analyse operation, maintenance and performance of high-pressure water tube boilers and ancillary equipment

4.1

Warm through procedure and checks to be carried out before connecting boiler to range are explained

4.2

How boiler is laid up for short and/or long periods is explained

4.3

Actions required after oil or salt water contamination are detailed

4.4

Chemical cleaning procedure to remove scale and oil deposits from internal surfaces of a boiler is explained

4.5

Tube failures are identified and suitable methods of repair are selected

4.6

Defects that can occur in economisers and how they can be repaired are listed

4.7

Maintenance inspection procedures to prevent superheater and economise fires are produced

4.8

Procedure to combat soot and steam/iron fires in generating banks, superheaters and economisers is outlined

4.9

Coordinate and congruent feed water treatment is illustrated on a caustic/phosphate graph

4.10

Different feedwater tests, procedure for each test and appropriate chemical treatments are explained

4.11

Program for an internal and external survey of a water tube boiler is compiled, defects that may be found and repair methods that will enable boiler to be returned to service are listed

4.12

Procedure for setting lift, adjusting blow-down of safety valves and carrying out an accumulation test on a boiler is outlined

4.13

Operation, desired temperature range and correct cleaning and maintenance requirements for tube and regenerative air heaters are detailed

4.14

Preparation and procedure for conducting hydraulic testing of a high pressure water tube boiler is explained

5

Analyse turbine operation, maintenance and performance

5.1

Relationship between sequential nozzle operation and bar lift in steam turbines is explained

5.2

Principle of operation of different trips and cut-outs is explained

5.3

Differentiation is made between resonance and critical speed, and their effect on the turbine operation is explained

5.4

Types of turbine vibration and where each type is found in a turbine is analysed

5.5

System torsional vibration and effect of operating at critical speeds and in-built design elements required to avoid critical speeds are explained

5.6

Back pressure and self condensing turbo alternators are compared

5.7

Governor system is explained

5.8

Turbine control systems are explained

5.9

Procedure for opening up turbine for survey, routine checks of blades, casings, rotors, bearings, glands, drains and the reassembly of turbine is explained

5.10

Procedure for straightening a bowed turbine rotor is outlined

6

Evaluate turbine-gearing performance

6.1

Single and double reduction gearing systems are compared and contrasted

6.2

Features and applications of double helical involute gear teeth are outlined

6.3

Advantages and disadvantages of single and double locked train gearboxes are analysed

6.4

Construction and reason for installing flexible couplings in gearing system is explained

6.5

Features, functions and applications of star, planetary and solar epicyclic gearing are compared and contrasted

6.6

Space savings resulting from use of epicyclic gearing are analysed