Google Links

Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Prepare to design hydrocarbon refrigeration systems
   • WHS/OHS requirements and workplace procedures for a given work area are identified, obtained and applied
2. Scope of the refrigeration system is determined from design specifications and/or in consultation with relevant person/s
3. Safety and systems are identified, obtained and applied in accordance with relevant industry standards
4. Work supervisor and/or customer/s are consulted to determine functions and parameters of the system required in accordance with design specifications and workplace documentation
5. Design development work is planned in accordance with workplace procedures for timelines in consultation with others involved
6. Design hydrocarbon refrigeration systems
   • WHS/OHS risk control measures and workplace procedures for carrying out the work are followed
7. Relevant hydrocarbon refrigeration system analysis, hydrocarbon refrigeration system components and piping are applied to developing the system design in accordance with workplace procedures and relevant industry standards
8. Safety, functionality and budgetary considerations are incorporated in the installation design
9. Equipment is selected in accordance with the design specifications and workplace procedures
10. Location of components is documented in accordance workplace procedures and operation of system functions
11. System design draft is checked for compliance in accordance with the design brief and relevant industry standards
12. System design is documented for submission to relevant person/s for approval
13. Unplanned events are dealt with in accordance with problem-solving techniques and workplace procedures
14. Obtain approval for hydrocarbon refrigeration systems design
    • System design is presented to customer and/or relevant person/s in accordance with workplace procedures
15. Requests for alterations to the design are negotiated with relevant person/s in accordance with workplace procedures
16. Final design is documented and approval obtained from relevant person/s
17. Quality of work is monitored in accordance with workplace procedures and relevant industry standards

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 hydrocarbon refrigeration systems must include at least the following	two different hydrocarbon refrigerated systems
Each hydrocarbon refrigerated system design must include at least one of the following:	major component, including: condenser compressor evaporator associated components and controls

---

Performance Evidence

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 hydrocarbon refrigeration systems preparing to design hydrocarbon refrigeration systems.

---

Knowledge Evidence

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:

hydrocarbon refrigeration systems design, components and piping design requirements, safe working practices and relevant standards, codes and regulations, including: technical standards, regulations and codes for hydrocarbon refrigeration systems: standard philosophy and format standards, regulations and codes that apply to hydrocarbon refrigeration systems equipment manufactures specifications hydrocarbon refrigeration system design requirements: applications of hydrocarbon refrigeration systems: domestic refrigerators commercial refrigeration thermodynamic properties of hydrocarbon hydrocarbon phase diagram hydrocarbon properties tables and chart hydrocarbon refrigeration cycle: Ph diagram representation expansion, evaporation, compression and condensation processes performance analysis of hydrocarbon refrigeration systems: refrigerating effect heat of rejection heat of compression coefficient of performance effects of suction superheating on cycle efficiency effects of liquid sub-cooling on cycle efficiency actual hydrocarbon refrigeration cycles: superheating inside and outside the refrigerated space liquid-suction heat exchangers pressure drop in piping due to friction and dynamic losses hydrocarbon refrigeration system components and piping: design preliminaries: system operating parameters project specifications equipment selection criteria selection tables, charts and catalogues materials used with hydrocarbon refrigerants heat exchanger selection: selection of evaporators selection of condensers compressor selection liquid expansion devices selection system load balance point refrigeration line design and sizing automatic controls safety: safety data sheets (SDS)/material safety data sheets (MSDS) for hydrocarbon refrigerants problem-solving techniques relevant WHS/OHS legislated requirements relevant workplace budget, quality, policies and procedures relevant workplace documentation.

---