Tutorial: How to create processes, flows and product systems in openLCA (Part 1)

This video is the first part of a two-part tutorial that teaches you how to conduct a life cycle assessment of a product. In this part, we guide you on creating processes, flows and product systems in openLCA.

The second part of the tutorial will explain how you can download and import LCIA methods and how to comprehend the results.

Twitter: @openLCA

[andreasciroth]

In 3:38, you take the process, not the flow, from the category tree on the left and add it to the inputs/outputs; this works (as we see), and enters the product of the process, and the process as provider (of the product) in the inputs/outputs sheet. You could also do this by adding the flow only, and then select one, or none, of the possible providers. Here you are combining two steps in one.

[RachaelCC]

This video and Part II are so good, I was able to do each step following the instructions perfectly! Thank you so much for making LCA accessible to students in developing countries.

[RetroAdo]

thanks a bunch
i was able to create the processes, flows and products very easily through this tutorial

[IrfanAli-mupj]

Why is the energy consumption, such as electricity or natural gas, not included in the inputs? Shouldn't we consider it along with the other items?

[anasjaradat]

You have created a new flow, "Mediterranean spices, " but it did not appear in the diagram because it's not linked to a provider; the question is, "If I created a flow, how can I link it with the correct provider?"

[getknowledge]

How can we select type of lca such as gate to gate

[jmameneyro]

Why do we have 1Kg chicken pasta as output if we just have 772 gr. of input flows + the 3 kg water?

[TH-fevs]

When I type "olive" in the Flows to filter, my list is empty. What should I do then?

[jmameneyro]

I had already created the system once and when I try to do it this time I get the following message and it doesn't show me the option to finish "No process with valid reference product output or waste input selected" You know why? I even validated the process and it shows that there are no errors.

[slug]

Were the Mediterranean herbs not described? The video didn’t show how we add information to a new flow…

[alejandraarmenta]

How can I see the countries in Geography? I don't have any location

[blazmiklavic]

Waste and fresh water doesn't show anywhere in the model graph, not even if I expand the Chicken pasta square; why is that? Bcs they are elementary flows?

[hongluanosgeo]

How about Water and Mediterranean spices ? I did not see them in the graph?

[adolfohermida]

Thank you very much for your excellent tutorial! Why did you substract 230 Gr in water Output?

[NooberTrOlL]

hey,
I tried to reproduce the results, but I ended up having the chicken pasta in the model graph without any connections. Only thing i noticed is that i have a lottle star in front of the process (*Chicken Pasta) and the same for the model graph. Do you know what might be the problem ? :)
thanks in advance

[discoverfoodtechnology]

what to do in case of gate to gate approach?

[saulmartinezcastaneda]

Hi, Why can't I see the provider for a inlet/outlet?

[aideemontielmartinez]

Why did you use "kg" for water? Why did not use liters?

[dhirajsutar]

When I try to add a provider for the flow it shows an empty list. What should I do to fix this?

[Leo-wexs]

hi, even assigning a provider to my flows i do not have the supply chain at 9:24