Search found 8 matches

by jrsfinn
15 Jan 2018 01:56
Forum: Modelling of the Inventory
Topic: Modelling Transport
Replies: 0
Views: 514

Modelling Transport

Hi all, When modelling transport (kg x km), I'm wondering how to to differentiate between the number of trucks required to move a particular weight. For example, modelling the transport of 1 tonne of PET granules may require 1 truck, whereas the transport of that same 1 tonne of PET bottles (much la...
by jrsfinn
15 Dec 2017 05:51
Forum: openLCA 1.6
Topic: negative results
Replies: 7
Views: 1691

Re: negative results

I was also curious about negative impact contributions. I have attached a screenshot of 'Land Use' Top 5 Contributions in hopes to clarify my thinking: Both the market for waste paper and the treatment of waste PET are negative contributors in this case. Does this mean that waste paper market (as so...
by jrsfinn
06 Dec 2017 00:43
Forum: openLCA 1.6
Topic: Process Missing/Not contributing as it should at Project Level
Replies: 2
Views: 1042

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

Thanks for your response Andreas! The input and outputs are product flows, yes; however, when you specify the Provider, that provider contains elemental flows (right?). So do you mean that if I do not have elemental flows in my input/outputs of a specific process that at the Project Report level it ...
by jrsfinn
05 Dec 2017 07:55
Forum: openLCA 1.6
Topic: Process Missing/Not contributing as it should at Project Level
Replies: 2
Views: 1042

Process Missing/Not contributing as it should at Project Level

Hi Andreas, I have a product system consisting of 7 processes: 500mL PET Bottle + PP Pump Bottle FIll Bottle Storage Ship to European Market Ship to Retail Product Use EOL - Landfill The 500mL PET Bottle + PP Pump process has 9 input flows and 2 output flows. The reference flow is a single unit titl...
by jrsfinn
05 Dec 2017 02:46
Forum: openLCA 1.6
Topic: NREL LCI & OpenLCA v1.6.3 - IA results not reported
Replies: 4
Views: 1373

Re: NREL LCI & OpenLCA v1.6.3 - IA results not reported

Hi Rebecca, I'm experiencing a similar issue where my model graph shows all upstream processes and inputs, but these do not show up in my Project comparisons and I believe they should contribute majorly to the impacts! Could you please elaborate on the conversion factor mistake that you found?? Than...
by jrsfinn
05 Dec 2017 01:22
Forum: openLCA 1.6
Topic: APOS vs Cut-Off Datasets
Replies: 2
Views: 1010

Re: APOS vs Cut-Off Datasets

Thank you for your help Andreas! Extremely appreciated.
by jrsfinn
04 Dec 2017 06:23
Forum: openLCA 1.6
Topic: APOS vs Cut-Off Datasets
Replies: 2
Views: 1010

APOS vs Cut-Off Datasets

Hi, I am seeking to clarify the difference between APOS and Cut-Off datasets. I have read through the EcoInvent online material but am finding the jargon used in the explanations tough to understand. I have created a project comparing Waste PET parameter across APOS (U) and Cut-Off (U) product syste...
by jrsfinn
04 Dec 2017 01:20
Forum: openLCA 1.6
Topic: System vs. Unit under Provider
Replies: 6
Views: 1610

System vs. Unit under Provider

Hi all,

I do not fully understand the system (S) or unit (U) options under the Provider tab in Processes. If anyone has advice or a simple explanation I would be extremely grateful.

Thank you!