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Evidence Guide: PMAOPS512 - Determine mass transfer loads

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

 

PMAOPS512 - Determine mass transfer loads

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

Prepare for mass balance

  1. Identify purpose of mass balance
  2. Determine possible boundary for analysis
  3. Identify plant and mass sources and sinks within boundary
Identify purpose of mass balance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine possible boundary for analysis

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify plant and mass sources and sinks within boundary

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate mass flow rates of streams

  1. Calculate mass flow rate of plant streams from volumetric data, correcting for changes in density
  2. Calculate mass flow rate of individual components of plant streams from their concentrations
  3. Calculate mass accumulation (+ or -) within a plant item
Calculate mass flow rate of plant streams from volumetric data, correcting for changes in density

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate mass flow rate of individual components of plant streams from their concentrations

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate mass accumulation (+ or -) within a plant item

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate mass change due to a chemical reaction

  1. Determine yield from reaction of all significant products
  2. Determine mass output of all significant products arising from the reaction for specified reactant inputs
Determine yield from reaction of all significant products

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine mass output of all significant products arising from the reaction for specified reactant inputs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct mass balance over process components

  1. Determine desired boundaries for mass balance calculation
  2. Determine possible sources of data required from the plant
  3. Match and adjust sources of data to desired boundary for mass balance
  4. Determine overall mass balance
  5. Determine mass balance for each significant component/ reactant and product
  6. Interpret results to meet purpose of the mass balance
Determine desired boundaries for mass balance calculation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine possible sources of data required from the plant

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Match and adjust sources of data to desired boundary for mass balance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine overall mass balance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine mass balance for each significant component/ reactant and product

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Interpret results to meet purpose of the mass balance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

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

Required Skills and Knowledge

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

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

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria, and include the ability to:

determine the boundaries of the system to be studied

collect the required plant data from measurements, readings or calculated quantities

calculate the mass transfer loads

conduct mass balances

report the results as required by the purpose of the mass balance.

Evidence must be provided that demonstrates knowledge of:

stoichiometry of chemical reactions

changes in density with temperature (and pressure where appropriate)

mass balances

plant equipment, its characteristics and limitations

process-specific science.

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Regulatory framework

The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used, and include one or more of the following:

legislative requirements, including work health and safety (WHS)

industry codes of practice and guidelines

environmental regulations and guidelines

Australian and other standards

licence and certification requirements

All operations to which this unit applies are subject to stringent health, safety and environment (HSE) requirements, which may be imposed through state/territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and HSE requirements, the HSE requirements take precedence.

Procedures

All operations must be performed in accordance with relevant procedures.

Procedures are written, verbal, visual, computer-based or in some other form, include one or more of the following:

emergency procedures

work instructions

standard operating procedures (SOPs)

safe work method statements (SWMS(

formulas/recipes

batch sheets

temporary instructions

any similar instructions provided for the smooth running of the plant