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by aciroth
29 Dec 2017 21:36
Forum: openLCA 1.6
Topic: EPD Indicators: Resource use and waste categories
Replies: 1
Views: 847

Re: EPD Indicators: Resource use and waste categories

Dear Raoul, welcome - this method is specifically for ecoinvent and the EuGeos ecoinvent adaptation to EN15804. You are right, it would make sense to also provide a method for GaBi - and it should also not be too difficult. Is it urgent for you or could be address this when we prepare the GaBi datab...
by aciroth
27 Dec 2017 21:46
Forum: Developer
Topic: Eigen or Lapack matrix inverse
Replies: 1
Views: 1177

Re: Eigen or Lapack matrix inverse

Hello and welcome,
I am not sure I understand, why do you want to conduct the computation in parallel?
Best wishes,
Andreas
by aciroth
27 Dec 2017 21:40
Forum: openLCA 1.6
Topic: Database
Replies: 1
Views: 784

Re: Database

Hi Silvia,
this is not an easy answer, for a peer-reviewed study, I would recommend a database where some quality assurance is applied. For specific products, you can search the Nexus site, https://nexus.openlca.org/. See also our direct discussion.
Thank you!
by aciroth
20 Dec 2017 19:54
Forum: openLCA 1.6
Topic: System vs. Unit under Provider
Replies: 6
Views: 1768

Re: System vs. Unit under Provider

yes (assuming that in the modeling of the aluminium supply chain bauxit mining was considered).
by aciroth
20 Dec 2017 12:30
Forum: openLCA 1.6
Topic: negative results
Replies: 7
Views: 1858

Re: negative results

Hm, it is indeed maybe difficult to discuss this over the forum negative impacts are obviously rooted in the use of by-products in some processes If a byproduct is used in another process without allocation, and the byproduct-process has some negative impacts, then this can overrule other results. L...
by aciroth
16 Dec 2017 13:11
Forum: Impact Assessment
Topic: January 2016 Characterization factor
Replies: 1
Views: 705

Re: January 2016 Characterization factor

Hi Simona, we are working on a larger update of the LCIA methods; it should be out soon but not this year. In meantime, you can *maybe* create an updated version yourself for the EPD (since some EPD systems even publish the factors to be applied, and focus on some few categories), or also contact us...
by aciroth
16 Dec 2017 12:48
Forum: openLCA 1.6
Topic: negative results
Replies: 7
Views: 1858

Re: negative results

Hi Sandra, yes indeed openLCA uses a matrix-calculation approach which is able to handle loops, so this should not be the reason. Negative impacts are caused by avoided emission modeling (in system expansion), which can also implicitly contained in aggregated processes. If you have "messy" system pr...
by aciroth
14 Dec 2017 11:55
Forum: Installation
Topic: Location of the database folder
Replies: 6
Views: 5132

Re: Location of the database folder

Hi all,
sorry this doesn't work because of a typo in the older post: it should be -olcaDataDir.
See also here: viewtopic.php?f=26&t=31909
I will edit the old post.
Thanks!
by aciroth
05 Dec 2017 11:27
Forum: openLCA 1.6
Topic: Process Missing/Not contributing as it should at Project Level
Replies: 2
Views: 1133

Re: Process Missing/Not contributing as it should at Project Level

Not sure I understand, the process has no elementary flows and as such therefore has no direct impacts, only the upstream products will probably have impacts via their elementary flows?
Best wishes