Unit of competency Outline

Date retreived
22/07/2026 1:24 AM AWST

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Determine mass transfer loads

Determine mass transfer loads

Unit of competency
National Code
PMAOPS512
State Code
AXM74
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
010101 - Mathematics
Original Release Date
05/08/2016
Nominal Hours
40
Description
This unit of competency covers the skills and knowledge required to determine mass transfer loads and flow rates. 'Flow rate' and similar terms refer to the flow rate in terms of kg/h, or kg/batch or similar conceptual flows.This unit of competency applies to activities which aim to resolve identified plant or process problems, such as improving materials efficiency or specification of new or modified equipment.This unit of competency applies to any mass transfer mode, including mass flowdensity variations with changes in temperature (and pressure where appropriate)simple (physical) mixingsimple (physical) separationchanges in component mass flow rates due to chemical reaction (including mixing and separation using chemical reaction).This unit of competency applies to senior technicians or those in similar roles who are required to calculate mass transfer and change in mass contained for a plant item/plant area in order to determine mass transfer efficiency or losses from/gains to the system. It may require the determination of the yield from a chemical reaction. 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 mass balance
  • 1.1 Identify purpose of mass balance
  • 1.2 Determine possible boundary for analysis
  • 1.3 Identify plant and mass sources and sinks within boundary
2 Calculate mass flow rates of streams
  • 2.1 Calculate mass flow rate of plant streams from volumetric data, correcting for changes in density
  • 2.2 Calculate mass flow rate of individual components of plant streams from their concentrations
  • 2.3 Calculate mass accumulation (+ or -) within a plant item
3 Calculate mass change due to a chemical reaction
  • 3.1 Determine yield from reaction of all significant products
  • 3.2 Determine mass output of all significant products arising from the reaction for specified reactant inputs
4 Conduct mass balance over process components
  • 4.1 Determine desired boundaries for mass balance calculation
  • 4.2 Determine possible sources of data required from the plant
  • 4.3 Match and adjust sources of data to desired boundary for mass balance
  • 4.4 Determine overall mass balance
  • 4.5 Determine mass balance for each significant component/ reactant and product
  • 4.6 Interpret results to meet purpose of the mass balance
No information
No information
Replaces
State Code National Code Title Type
W8897 PMAOPS512B Determine mass transfer loads Unit of competency