openLCA archived user forum

As a beginner of openLCA usage I often read the user guides available and try to understand and test the application features. Now I am creating a process of my experimental model (the model comprises several processes) and unexpectedly for me, I encountered a problem – I'm not sure I can define pro...

Thanks Andreas, I didn't know that detail, but how could I? Any way, as talking about the Model graph, I am asking myself when to prefer "System process" instead of "Unit process" when using the the option "Build supply chain". When defining a process (in a model), the modeler does not specify the t...

Hi folks, I created a process that contains several input flows (elementary, waste and product). These flows are correctly listed in the “Inputs/Outputs” Tab of the process Editor. When a product system has been generated from that process, and then the Model graph activated, it does not show the el...

Hi Andreas, Thanks for your advice. I checked once again the flows and processes of my model and found out the mistake. It was mine, of course - the list of input and output product flows (of the last process in the upstream) was empty. I repeated everything I've done before. It was said somewhere t...

Hi Andreas, I address you, or someone in the forum, in the hope that you can help me by commenting the following case: I'm trying to build up a product system that contains several processes. I have defined the quantitative references and created input and output flows for each process of the upstre...

Thanks Andreas.
Now everything with the "Deforestation" is on place.
Best wishes.

Chris P

Hi Andreas, Thanks that you found time to answer my questions. On 1) - everything is clear, thanks. On 2) – I think that my question was not correctly set by me and that was misleading for you. I understand that the “Resulting amount” can be expressed by a plain number or by a combination of paramet...

Hi forum members and Moderator, As being a novice to openLCA I’m reading the case study of Sallerspark in order to obtain more experience with creating flows and processes. 1. Reading the section 3.2.1 Create processes I notice that all processes have output product flows with unit “Item(s)” except ...

Hi Andreas, It is nice to hear from you again. Thanks for your reply. The snapshots in it illustrate what I was trying to do, but unsuccessfully. So your reply made me to change my approach to the problem. And I found what had caused the malfunction of openLCA on my computer. If you don’t mind I’ll ...

Hi to everyone openLCA user, Recently I have installed the last version 1.4.2 of openLCA and imported both ELCD and ProBas databases. Then I tried some basic functions of the application interface. For example: I created new flows and processes to test myself as for long time I haven’t been working ...