Assessor Resource

PMC554090B
Undertake simple refractory design

Assessment tool

Version 1.0
Issue Date: April 2024


This unit of competency applies to technicians who are responsible for designing simple or small refractory installations or repairs. They apply the principles of heat transfer, thermal expansion, abrasion and structures along with a knowledge of refractory materials and installation techniques to the design to yield a product which will meet a rigid technical specification.

This unit covers a refractory design for a situation which can be achieved by the application of standard products/components in a standard manner. It does not cover innovative products/ applications nor those situations where the design must be done by a registered engineer, although it may involve working with an engineer on a design

This will typically be done by an individual technician working in liaison with customers, installers and technical experts.

This unit of competency covers applying design principles and undertaking simple design tasks. The technical requirements of the design are paramount and the application of an understanding of refractories, heat transfer and refractory wear and failure mechanisms are primary. The aesthetics of the design are of little if any significance.

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

Employability Skills

This unit contains employability skills.



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.

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

The unit will be assessed in as holistic a manner as is practical and may be integrated with the assessment of other relevant units of competency.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Competence must be demonstrated in the operation of all ancillary equipment to the level required for this unit of competency.

Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective action.

Consistent performance should be demonstrated. In particular look to see that:

the technical aspects of the design are identified and an appropriate solution is proposed.

Context of and specific resources for assessment

Assessment will require access to an operating plant over an extended period of time, or a suitable method of gathering evidence of operating ability over a range of situations.

Assessment will occur over a range of situations which will include disruptions to normal, smooth operation.

Simulation or case studies/scenarios may be required to allow for timely assessment of parts of this unit of competency. Simulation should be based on the actual plant and will include 'walk-throughs' of the relevant competency components. A bank of scenarios/case studies/what ifs and questions will be required to probe the reasoning behind observable actions.

Method of assessment

It may be appropriate to assess this unit concurrently with relevant teamwork and communication units.

It may be appropriate to assess this unit concurrently with other relevant units.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

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.

Required skills

Required skills include:

adjusting/correcting/responding to work requirements

identifying and resolving problems

using simple software for calculations

working in a team or individually, as required

reading and numeracy to interpret workplace documents and technical information

Required knowledge

Required knowledge includes:

heat flow calculations

awareness of other relationships involved with these calculations

refractory materials and their properties

refractory installation techniques

structural strength of refractories

thermal expansion of refractories

methods of tying refractories

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Procedures

All operations are performed in accordance with standard procedures and work instructions

Refractory materials

Refractory materials are those materials that have a resistance to temperature and include:

alumina silicate materials (clay)

silliminites

bauxite

synthetic aggregates

silica

magnesite

dolomite

chrome ores

Refractory installation techniques

Refractory installation techniques include:

bricks, blocks

mouldables

castable

spray/gunned application

Occupational health and safety (OHS)

All operations are subject to stringent OHS requirements and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and OHS requirements, the OHS requirements take precedence

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
Check all information conforms with resources 
Record discrepancies in information 
Report any inaccuracies in information to the person in charge 
Identify and select materials, components, tools and equipment 
Determine strength requirements 
Determine operating temperature range 
Select materials/mix with appropriate mechanical strength 
Identify hazards of materials and processes to be used and apply hierarchy of control to control hazards 
Determine expansion which will occur for this material 
Adjust material/mix to be suitable for temperatures 
Determine heat flow through the refractory 
Determine interface temperatures for multi-component linings 
Use simple software 
Determine interface bonding/anchor issues 
Specify materials to be used 
Specify installation method to be used 
Confirm specification meets customer needs and installer requirements 

Forms

Assessment Cover Sheet

PMC554090B - Undertake simple refractory design
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

PMC554090B - Undertake simple refractory design

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: