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Evidence Guide: UEERA0029 - Develop heat exchanger design specifications

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

 

UEERA0029 - Develop heat exchanger design specifications

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

Prepare to develop specifications for exchanger designs

  1. Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified, obtained and applied
Work health and safety (WHS)/occupational health and safety (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 procedures are followed in preparation for the work

Completed
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Scope of analysis to develop specifications is determined from design brief, relevant reports and/or consultations with relevant person/s

Completed
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Activities are planned in accordance with workplace procedures for timelines in consultation with others involved in the work

Completed
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Strategies are formed to ensure analysis is carried out in accordance with workplace procedures and relevant industry standards

Completed
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Develop specifications for exchanger designs

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

Completed
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Relevant refrigeration parameters are applied to developing heat exchanger specifications in accordance with workplace procedures and relevant industry standards

Completed
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Parameters and performance requirements in relation to refrigeration systems are obtained in accordance with workplace procedures and relevant industry standards

Completed
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Refrigeration parameters are analysed to provide effective solutions in accordance with workplace procedures

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

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

Completed
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Document specifications for exchanger design

  1. Analysis, findings, calculations and assumptions are documented in accordance with workplace procedures
Analysis, findings, calculations and assumptions are documented in accordance with workplace procedures

Completed
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Specifications for heat exchanger are developed from analysis findings and in accordance with workplace procedures

Completed
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Developed specification and analysis is reported to relevant person/s for endorsement in accordance with workplace procedures

Completed
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Justification for findings and actions undertaken in relation to the design is documented in accordance with workplace procedures and relevant industry standards for work/project and/or development records

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:

interpreting compliance documents

setting up and conducting appropriate examinations and tests

identifying non-compliance defects

reporting examination and test results and non-compliance issues clearly and accurately

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

developing specifications for exchanger designs

documenting specifications for exchanger designs

identifying analysis, findings, calculations and assumptions

preparing to develop specifications for exchanger designs

reporting findings and actions.

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:

heat exchanger design, safe working practices and relevant standards, codes and regulations, including:

advanced thermodynamics:

heat transfer:

modes of heat transfer

conduction through a flat plate, series flat plates, thick and thin wall pipe, and composite pipes (e.g. lagged pipes and drums)

convection at a flat surface or tube

radiation from a flat surface or tube for black or grey bodies

combined conduction and convection through single or multiple flat plates or thin wall tubes

combined convection and radiation

combined conduction, convection and radiation such as fluid in a tank (convection to wall), through wall and/or insulation

(conduction) to outside air (convection and radiation)

heat exchangers - parallel, counter flow and cross flow

refrigeration/heat pump:

basic principles and terminology

vapour compression cycle

performance criteria

types of refrigerant - designation, properties advantages and disadvantages

refrigerant properties using the pH diagram

ideal vapour compression cycle on the pH diagram

energy balance and heat transfers in compressor, evaporator and condenser

actual vapour compression cycle and variations from the ideal

pressure loss in lines and non-ideal compression

superheating and subcooling with or without suction/liquid heat exchanger

Carnot principle applied to refrigerator and heat pump

principles of evaporative refrigeration, absorption refrigeration, air cycle refrigeration and thermo-electric refrigeration

heater exchanger design:

concepts

design parameters and limitations

construction material and components

testing requirements

problem-solving techniques

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace quality, policies and procedures.

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.

Developing specifications for heat exchangers must include at least the following:

two different designs