System expansion: "avoided product" not calculated
Posted: 08 Jun 2016 09:38
Hello openLCA users!
I have a problem with making openLCA calculate the production of avoided products in the inventory. I am modelling the life cycle of a machine from cradle-to-grave. During the EOL/Disposal phase some of the plastic and aluminium used for the machine's components can be recycled, i.e. some production of new plastic, aluminum and energy is avoided. I followed the instructions on this website: http://www.openlca.org/documentation/in ... _expansion , i.e. I ticked avoided product for the outputs mentioned above. However, if I connect the providers for these outputs in the model graph, no dashed lines occur to connect the processes (see pictures), i.e. the connections to "aluminum, secondary rolled", "Polypropylene granulate" and "waste incineration of plastics". Now, the production of the avoided products is not calculated as beneficial.
Does somebody know why that is the case and what I can do to make openLCA consider the positive impacts of the avoided products?
Thank you very much!
Best,
Mara
I have a problem with making openLCA calculate the production of avoided products in the inventory. I am modelling the life cycle of a machine from cradle-to-grave. During the EOL/Disposal phase some of the plastic and aluminium used for the machine's components can be recycled, i.e. some production of new plastic, aluminum and energy is avoided. I followed the instructions on this website: http://www.openlca.org/documentation/in ... _expansion , i.e. I ticked avoided product for the outputs mentioned above. However, if I connect the providers for these outputs in the model graph, no dashed lines occur to connect the processes (see pictures), i.e. the connections to "aluminum, secondary rolled", "Polypropylene granulate" and "waste incineration of plastics". Now, the production of the avoided products is not calculated as beneficial.
Does somebody know why that is the case and what I can do to make openLCA consider the positive impacts of the avoided products?
Thank you very much!
Best,
Mara