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

UEERA0004 Mapping and Delivery Guide
Analyse vibration and noise in refrigeration and air conditioning systems

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency UEERA0004 - Analyse vibration and noise in refrigeration and air conditioning systems
Description
Employability Skills
Learning Outcomes and Application This unit involves the skills and knowledge required to analyse vibration and noise in refrigeration and air conditioning systems.It includes analysing refrigeration and air conditioning system to provide solutions to noise, sound and vibration issues. It also includes working safely, gathering and analysing data, applying problem-solving techniques, and developing and documenting results and solutions for use in design work.No licensing, legislative or certification requirements apply to this unit at the time of publication.
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 must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

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.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and personal protective equipment (PPE) currently used in industry

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

Prerequisites/co-requisites
Competency Field Refrigeration and air-conditioning
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: Prepare refrigeration and air conditioning system to analyse noise and vibration in
  • Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified, obtained and applied
       
Element: WHS/OHS risk control measures and workplace procedures are followed
       
Element: Extent of the noise and vibration issue is determined from performance specifications, situation reports and consultations with relevant person/s
       
Element: Work activities are planned to meet scheduled timelines in consultation with others involved in the work
       
Element: Effective strategies are formed to ensure solution development and implementation is carried out efficiently
       
Element: Analyse refrigeration and air conditioning system noise and vibration
  • WHS/OHS risk control measures and workplace procedures for carrying out the work are followed
       
Element: Noise, vibration and thermodynamic analytical solutions are applied to refrigeration and air conditioning system
       
Element: Parameters, specifications and performance requirements in relation to refrigeration and air conditioning system are obtained in accordance with workplace procedures
       
Element: Approaches to analysing noise and vibration parameters are carried out to provide the most effective solution
       
Element: Unplanned events are dealt with safely in accordance with workplace procedures and regulatory requirements in a manner that minimises risk to personnel and equipment
       
Element: Refrigeration and air conditioning system work quality is monitored against performance agreement and/or workplace or industry standards
       
Element: Document actions taken and report on noise and vibration analysis
  • Solutions to noise and vibration issues are evaluated to determine their effectiveness and modified, as required, in accordance with workplace procedures
       
Element: Refrigeration and air conditioning system analysis is documented and includes details of findings calculations and assumptions
       
Element: Refrigeration and air conditioning system analysis is reported to appropriate person/s to determine appropriate action to be taken based on findings
       
Element: Justification for findings and any actions to be undertaken in relation to the equipment is documented for inclusion in work/project or development records in accordance with industry standards and workplace procedures
       


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, performance criteria and range of conditions on at least one occasion and include:

understanding the noise and vibration issues

forming effective strategies for analysing refrigeration and air conditioning systems performance

obtaining noise and vibration parameters, specifications and performance requirements appropriate to each situation

evaluating the results of the analysis

documenting analysis details of all findings, calculations and assumptions

documenting justification of actions to be implemented in accordance with professional standards

dealing with unplanned events

applying problem-solving procedures, including using appropriate theorems

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures and practices, including using risk control measures

applying sustainable energy principles and practices.

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:

noise and vibration in refrigeration and air conditioning systems, safe working practices and relevant standards, codes and regulations, including:

fundamentals of sound:

frequency

decibels

octave bands

direct sound

velocity

sound pressure level

sound power level

sound meters

noise and people:

physical measurement of sound

weighting networks

NR curves

noise damage to hearing

evaluate daily noise exposures

peak noise levels

attenuation for hearing protectors

excess noise levels permissible

noise abatement Acts

advanced noise and vibration control

sound in confined and unconfined spaces:

inverse square laws

direct and reflective sound

reverberation time

Sabine's formula

absorption coefficients of surfaces

types of absorbers and their operation

insulation performances of partitions

identification and analysis of problems:

one-dimensional sound waves

standing waves

energy in a sound wave

sources

effects of air turbulence

transmitters

amplifiers

absorptivity

reflectivity

room characteristics

acoustic design in buildings

fan and air noise transmission in ducts

methods of control:

natural attenuation

sound absorbing materials and placement

duct lining

lined plenums

lined duct splitters

duct attenuators

white noise

vibration isolators

acoustic specifications:

attenuator ratings

sound insulation:

plant room breakout

controlling plant room noise

duct borne noise:

sound power spectra for fans

noise attenuation in ducts and fittings

reducing fan noise transmission

regeneration noise

sources of regenerated noise

use tables to estimate regenerative noises

breakout situations

fan noise breakout

list methods of controlling breakout

controlling the cost:

economical use of attenuation

vibration:

simple harmonic motion (SHM)

period

frequency

amplitude

estimate frequencies for fans, pumps and refrigeration plant

estimate transmission of vibration

vibration control for building structures

use transmissibility graphs to select springs, vibration eliminators and pads

types of isolation materials and mounting devices

select isolation and mounting devices

inertia blocks

noise and vibration analysis computer software packages

relevant job safety assessments or risk mitigation processes

relevant technique, process or measurement methods to obtain sound, noise and vibration data, including problem-solving procedures and appropriate theorems

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace 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.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Analysing noise, sounds and vibration must include at least the following:

two different refrigeration and air conditioning systems

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
Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified, obtained and applied 
 
 
 
 
WHS/OHS risk control measures and workplace procedures for carrying out the work are followed 
 
 
 
 
 
Solutions to noise and vibration issues are evaluated to determine their effectiveness and modified, as required, in accordance with workplace procedures 
 
 
 

Forms

Assessment Cover Sheet

UEERA0004 - Analyse vibration and noise in refrigeration and air conditioning systems
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

UEERA0004 - Analyse vibration and noise in refrigeration and air conditioning systems

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: