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Evidence Guide: UEERA0020 - Design complex industrial refrigeration systems and select equipment

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UEERA0020 - Design complex industrial refrigeration systems and select equipment

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare to design complex industrial refrigeration system

  1. WHS/OHS requirements and workplace procedures for a given work area are identified, obtained and applied
WHS/OHS requirements and workplace procedures for a given work area are identified, obtained and applied

Completed
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WHS/OHS risk control measures and workplace procedures are followed in preparation for the work

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Scope of the refrigeration system is determined from the design brief and/or consultations with relevant person/s

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Design development work is planned in accordance with workplace procedures for timelines in consultation with others involved

Completed
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Design complex industrial refrigeration system

  1. Relevant industrial refrigeration system processes and methods are applied to the design
Relevant industrial refrigeration system processes and methods are applied to the design

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Alternative concepts for design are evaluated in accordance with the design brief

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Safety, functionality and budgetary considerations are incorporated in the design specifications

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System design draft is checked for compliance in accordance with the design brief and relevant industry standards

Completed
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System design is documented and submitted to relevant person/s for approval in accordance with workplace procedures

Completed
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Unplanned events are dealt with in accordance with problem-solving techniques and workplace procedures

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Obtain approval for complex industrial refrigeration system design

  1. System design is presented to customer and/or relevant person/s in accordance with workplace procedures
System design is presented to customer and/or relevant person/s in accordance with workplace procedures

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Requests for alterations to the design are negotiated with relevant person/s in accordance with workplace procedures

Completed
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Final design is documented and approval obtained from relevant person/s in accordance with workplace procedures

Completed
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Quality of work is monitored in accordance with workplace procedures and relevant industry standards

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Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge

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:

developing outlines of alternative designs

developing the design within the safety, regulatory, functional requirements and budget limitations

documenting and presenting design effectively

negotiating design alteration requests successfully

obtaining approval for final design

dealing with unplanned events

applying relevant industrial refrigeration system processes and methods

applying relevant work health and safety (WHS)/occupational health and safety (WHS/OHS) requirements, including using rick control measures

designing complex commercial refrigeration system

preparing to design complex industrial refrigeration system.

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:

complex industrial refrigeration system design, safe working practices and relevant standards, codes and regulations including:

AS/NZS 1677 Refrigerating systems SAA refrigeration code

ANSI/IIAR standards

ANSI/ASHRAE standards

IIAR bulletins

moderate and low temperature industrial refrigeration systems:

direct, flooded and pumped liquid recirculation systems

evaporators

multi-staged compression

direct staging

cascade staging

compound compressors

de-superheaters and liquid injection

direct expansion intercoolers

open and closed intercoolers

basic designs of accumulators/intercooler vessels

oil cooling methods

oil stabilisation, return and oil recovery in flooded systems

multiple evaporators and multiple compressors:

parallel evaporators

multiple temperature systems

evaporator pressure regulators

temperature control methods

parallel compressors

pipe work layout

methods of establishing pressure drop in dry and wet suction lines

indirect refrigeration systems:

classification according to AS/NZS 1677 Refrigerating systems SAA refrigeration code

applications

evaporators

heat exchangers, types, construction and selection

secondary refrigerants

brines

antifreeze solutions

flooded systems:

applications

equipment

accumulators

level controls

liquid recirculation pumps

liquid pressure relief valve

cryogenic systems:

applications and equipment

system components

refrigerants

design safety

economics

cascade systems

basic control sequences:

maintaining evaporator conditions

staging and suction pressure control

maintaining condenser conditions

control of intermediate pressure, methods of industrial refrigeration compressor capacity control

system design:

required cooling capacity per day

running time and required system cooling capacity

system capacity control for peak and low load

refrigeration system diagrams

refrigerant, equipment, major component, controls, piping and accessory selection

problem-solving techniques

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications

relevant WHS/OHS legislated requirements

relevant workplace budget, quality, policies and procedures

relevant workplace documentation.

Range Statement

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.

Designing a complex industrial refrigeration system must include at least the following:

one multiple major component, including:

compressors

condenser

evaporators

circuits and/or systems

associated components and controls