LCIA of system (upstream processes) unclear

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WolframS
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Joined: 14 Feb 2016 17:20
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LCIA of system (upstream processes) unclear

Post by WolframS » 01 Mar 2016 15:49

Hi,

I am not sure whether I understand openLCA correctly but what is the difference if I
  • create a system excluding the "process and system processes" (A)
  • create a system including the "process and system processes" (B)
2016-03-01 screenshot_openLCA1.4.2_ws_var_A.jpg
2016-03-01 screenshot_openLCA1.4.2_ws_var_A.jpg (59.61 KiB) Viewed 2888 times
2016-03-01 screenshot_openLCA1.4.2_ws_var_B.jpg
2016-03-01 screenshot_openLCA1.4.2_ws_var_B.jpg (59.18 KiB) Viewed 2888 times
Only in case A and only if connect upstream process via "search providers for..." I get reasonable lcia results. If I connect to the upstream process via "Build supply chain..." I get the same strange results as via alternative B. Why? Thank you.

BR
Wolfram

aciroth
Posts: 750
Joined: 09 May 2010 23:28

Re: LCIA of system (upstream processes) unclear

Post by aciroth » 01 Mar 2016 19:31

Hello Wolfram,
well if the database is consistent then you get the same results in both cases. What did you use as a database? In A, you start with a process and can connect other processes manually, in B, the connection is done with information about links in the database.
Hth,
Andreas

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