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Evidence Guide: UEERA0025 - Design industrial refrigeration systems and select components

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

 

UEERA0025 - Design industrial refrigeration systems and select components

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

Prepare to design industrial refrigeration systems

  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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Scope of the refrigeration system is determined from design specifications

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Safety and systems are identified, obtained and applied in accordance with relevant industry standards

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Work supervisor and/or customer/s are consulted to determine functions and parameter of the system required in accordance with design specifications and workplace documentation

Completed
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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 industrial refrigeration systems

  1. WHS/OHS risk control measures and procedures for carrying out the work are followed
WHS/OHS risk control measures and procedures for carrying out the work are followed

Completed
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Relevant refrigeration and food storage technology, refrigeration system components and piping are applied to developing the system design in accordance with workplace procedures and relevant industry standards

Completed
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Safety, functionality and budgetary considerations are incorporated in the installation design

Completed
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Equipment required is selected in accordance with the design specifications and workplace procedures

Completed
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Location of components are documented in accordance with workplace procedures and operation of system functions

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

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System design is documented and submitted to relevant person/s for approval

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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 industrial refrigeration design

  1. System design is presented and explained to customer and/or relevant person/s
System design is presented and explained to customer and/or relevant person/s

Completed
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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

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

Completed
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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:

understanding required operating functions and parameters from the design specification

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

documenting and presenting design effectively,

successfully negotiating design alteration requests

obtaining approval for final design

dealing with unplanned events

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

designing industrial refrigeration systems

preparing to design industrial refrigeration systems.

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:

industrial refrigeration systems design and component selection, fundamentals, safe working practices and relevant standards, codes and regulations including:

relevant industry practices:

AS/NZS 1677 Refrigerating systems SAA refrigeration code

AS/NZS 3666 Air-handling and water systems of buildings

ozone protection regulations

IIAR ammonia data book

ANSI/IIAR standards

ANSI/ASHRAE mechanical refrigeration and IIAR bulletins and standards (list will be provided by Rama)

equipment manufacturer’s specifications and practices

operating characteristics:

pH charts

refrigerating effect, relate back to air and fluid coolers

heat of compression, relate back to screw, rotary and reciprocating compressors

heat rejected high side of the system, relate back to air cooled, evaporative, and water-cooled condensers

variable liquid refrigeration systems and liquid oversee systems

required mass flow rate of refrigerant and volume flow rate at various points in system

theoretical compressor power

required condenser capacity

major system components:

refrigerants, including R717 and R22

secondary refrigerants

component lubricant refrigerant compatibility

evaporators

condensers and cooling towers

compressors

expansion valves

interconnecting piping and

isolating valves

pilot-operated valves

defrost system components for air, water, recycled water, hot gas and electric methods

refrigerant accumulators and liquid pumps

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 industrial refrigeration systems must include at least the following:

two different industrial systems with one of the following:

condenser

compressor

evaporator

associated components and controls