L6

Question 1

Allocation

Answer 1

The partitioning of inputs and outputs of a process/product system between products. (recycling its partitioning between systems, multifunctional its between processes).

Question 2

Functional Flow

Answer 2

Any flow that constitutes the purpose of the unit process.

Question 3

Multifunctional processes

Answer 3

More than one functional flow - co/joint production, combined waste processing, recycling.

Question 4

Order do when processes are shared by other product systems.

Answer 4

Dissagregation, System Expansion,

Allocation (Co-production, joint-production)

Question 5

Disaggregation

Answer 5

Dividing the unit process into subprocesses until there is only one functional flow per sub process.

Question 6

System Expansion

Answer 6

Inclusion of other reference flows (include the functions of the co-products in the scope). Tricky when trying to compare products, they won’t necessarily have the same coproduction.

Question 7

Coproduction

Answer 7

Used when the proportion of functional flows is variable. The relationships between inputs and outputs can be described by physical relationships and used to make allocation factors.

Question 8

Joint production

Answer 8

Used when the proportion of functional flows is fixed. There is no physical causality between process inputs and outputs. Use revenue, then mass of each product to allocate.

Question 9

Partitioning

Answer 9

Separate the multifunctional process into monofucntional processes and use allocation factors to alter the non-functional flows attributed to each unit.

Question 10

Recycling

Answer 10

Converts one or more negative economic value inputs into positive economic value outputs. Can be open loop, closed loop or pseudo.