Unit of competency Outline

Date retreived
22/07/2026 1:25 AM AWST

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Determine energy transfer loads

Determine energy transfer loads

Unit of competency
National Code
PMAOPS511
State Code
AXM75
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
02/06/2016
View on TGA
State Implementation and Classification
Approved Date
05/08/2016
Field of Education
030301 - Chemical Engineering
Original Release Date
05/08/2016
Nominal Hours
40
Description
This unit of competency covers the skills and knowledge required to determine energy transfer loads. It applies to activities which aim to resolve identified plant or process problems, such as ensuring that systems are adequate for the load, improving heat/cooling efficiency or specification of new or modified equipment.This unit of competency applies to any heat transfer mode, including conduction, convection (forced and natural), radiation, and combined conduction/convection/ radiation. It applies to sources of heating/cooling, such as:chemical reaction (including combustion)water coolingair coolingsteam heating (calculations for saturated steam only)evaporative coolinghot fluid (e.g. oil) heating.This unit of competency applies to senior technicians or those in similar roles who are required to calculate heat transfer and temperature change for a plant item/plant area in order to determine heating/cooling load or efficiency or losses from/gains to the system. This may be done as a step to improve efficiency, for plant/process design/improvement or other reasons.No licensing, legislative or certification requirements apply to this unit at the time of publication.
Notes
Elements and Performance Criteria
1 Prepare for energy balance
  • 1.1 Identify purpose of energy balance
  • 1.2 Determine possible boundary for analysis
  • 1.3 Identify plant and energy sources and sinks within boundary
2 Calculate heat transferred from/to items
  • 2.1 Calculate conductive heat transfer to/from an object
  • 2.2 Calculate convective heat transfer to/from an object
  • 2.3 Calculate radiative heat transfer to/from an object
  • 2.4 Calculate combined heat transfer to/from an object, including resistances in series and parallel
3 Calculate temperature change
  • 3.1 Calculate temperature change caused by heating/cooling of process materials in typical examples of processing equipment
  • 3.2 Calculate change in heat content caused by chemical reaction
  • 3.3 Calculate temperature rise caused by chemical reaction
4 Select appropriate heating and/or cooling mechanism for an application
  • 4.1 Compare rates of heat transfer/overall heat transfer coefficients for major methods/media of heating and cooling
  • 4.2 Determine appropriate methods of varying/controlling rates of heat transfer
  • 4.3 Calculate heat transfer rates under a range of conditions
  • 4.4 Recommend most appropriate heat transfer mechanism/medium for this application
5 Conduct energy balance over process components
  • 5.1 Determine desired boundaries for energy balance calculation
  • 5.2 Determine possible sources of data required from the plant
  • 5.3 Match and adjust sources of data to desired boundary for energy balance
  • 5.4 Determine overall heating load
  • 5.5 Determine overall cooling load
  • 5.6 Interpret results to meet purpose of the energy balance
No information
No information
Replaces
State Code National Code Title Type
W8896 PMAOPS511B Determine energy transfer loads Unit of competency