Paper_Clip_Tutorial Part1.pdf - GaBi Software

7. You can close this model.
Procedure
The flows that enter the product system coming from the natural system (our environment,
e.g. resources as hard coal) or that leave the system (e.g. CO2 emissions) are called
elementary flows. If you create a list of all the input/output elementary flows associated
with the system you would have created the LCI.
06.02 Flows
Perhaps the most important information of GaBi is the flow information. Flows are
characterized by mass, energy and costs with their respective values. For example, GaBi
contains flow information for different raw materials, plastics, metals, emissions to air and
water and many, many more.
It is important to understand that flows contain information that tells GaBi to what extent
one unit of this flow contributes to different environmental impact categories: these are
called classification and characterisation factors. Let´s look at an example.
8. In the object hierarchy, click on the arrow next to ‘Flows’ and expand the flow
group.
You will notice that flows are grouped in folders according to whether or not they are
resources, emissions or other types of flows.
9. Click to expand the ‘Resources’ flow category and again to expand ‘Energy
resources’ and ‘Non renewable energy resources.’
10. Now click on the ‘Natural gas’ folder.
You can now see all the natural gas flows available in your database. There are several
country specific flows for natural gas since the gas mixture and its properties vary from
region to region.
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