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| @@ -1,24 +1,23 @@ | ||
| on: | ||
| push: | ||
| branches: | ||
| - joss_paper | ||
| name: Paper Draft | ||
| on: [push] | ||
|
|
||
| jobs: | ||
| paper: | ||
| runs-on: ubuntu-latest | ||
| name: Paper Draft | ||
| steps: | ||
| - name: Checkout | ||
| uses: actions/checkout@v4 | ||
| with: | ||
| ref: joss_paper | ||
| uses: actions/checkout@v2 | ||
| - name: Build draft PDF | ||
| uses: openjournals/openjournals-draft-action@master | ||
| with: | ||
| journal: 'joss' | ||
| paper-path: 'paper.md' | ||
| journal: joss | ||
| # This should be the path to the paper within your repo. | ||
| paper-path: joss/paper.md | ||
| - name: Upload | ||
| uses: actions/upload-artifact@v4 | ||
| uses: actions/upload-artifact@v4.4.0 | ||
| with: | ||
| name: paper | ||
| name: paper | ||
| # This is the output path where Pandoc will write the compiled | ||
| # PDF. Note, this should be the same directory as the input | ||
| # paper.md | ||
| path: joss/paper.pdf |
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| <?xml version="1.0" encoding="utf-8" ?> | ||
| <!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.2 20190208//EN" | ||
| "JATS-publishing1.dtd"> | ||
| <article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="1.2" article-type="other"> | ||
| <front> | ||
| <journal-meta> | ||
| <journal-id></journal-id> | ||
| <journal-title-group> | ||
| <journal-title>Journal of Open Source Software</journal-title> | ||
| <abbrev-journal-title>JOSS</abbrev-journal-title> | ||
| </journal-title-group> | ||
| <issn publication-format="electronic">2475-9066</issn> | ||
| <publisher> | ||
| <publisher-name>Open Journals</publisher-name> | ||
| </publisher> | ||
| </journal-meta> | ||
| <article-meta> | ||
| <article-id pub-id-type="publisher-id">0</article-id> | ||
| <article-id pub-id-type="doi">N/A</article-id> | ||
| <title-group> | ||
| <article-title><monospace>bw_timex</monospace>: a software package for | ||
| time-explicit life cycle assessment</article-title> | ||
| </title-group> | ||
| <contrib-group> | ||
| <contrib contrib-type="author"> | ||
| <contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-8566-8618</contrib-id> | ||
| <name> | ||
| <surname>Diepers</surname> | ||
| <given-names>Timo</given-names> | ||
| </name> | ||
| <xref ref-type="aff" rid="aff-1"/> | ||
| </contrib> | ||
| <contrib contrib-type="author"> | ||
| <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5609-5609</contrib-id> | ||
| <name> | ||
| <surname>Müller</surname> | ||
| <given-names>Amelie</given-names> | ||
| </name> | ||
| <xref ref-type="aff" rid="aff-2"/> | ||
| <xref ref-type="aff" rid="aff-3"/> | ||
| </contrib> | ||
| <contrib contrib-type="author"> | ||
| <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0825-2184</contrib-id> | ||
| <name> | ||
| <surname>Jakobs</surname> | ||
| <given-names>Arthur</given-names> | ||
| </name> | ||
| <xref ref-type="aff" rid="aff-4"/> | ||
| </contrib> | ||
| <aff id="aff-1"> | ||
| <institution-wrap> | ||
| <institution>Institute of Technical Thermodynamics, RWTH Aachen | ||
| University, Germany</institution> | ||
| </institution-wrap> | ||
| </aff> | ||
| <aff id="aff-2"> | ||
| <institution-wrap> | ||
| <institution>Institute of Environmental Sciences (CML), Leiden | ||
| University, The Netherlands</institution> | ||
| </institution-wrap> | ||
| </aff> | ||
| <aff id="aff-3"> | ||
| <institution-wrap> | ||
| <institution>Flemish Institute for Technology Research (VITO), | ||
| EnergyVille, Belgium</institution> | ||
| </institution-wrap> | ||
| </aff> | ||
| <aff id="aff-4"> | ||
| <institution-wrap> | ||
| <institution>Technology Assessment Group, Laboratory for Energy | ||
| Analysis, Center for Nuclear Engineering and Sciences & Center for | ||
| Energy and Environmental Sciences, Paul Scherrer Institut (PSI), | ||
| Villigen PSI, Switzerland</institution> | ||
| </institution-wrap> | ||
| </aff> | ||
| </contrib-group> | ||
| <pub-date date-type="pub" publication-format="electronic" iso-8601-date="2025-01-01"> | ||
| <day>1</day> | ||
| <month>1</month> | ||
| <year>2025</year> | ||
| </pub-date> | ||
| <volume>¿VOL?</volume> | ||
| <issue>¿ISSUE?</issue> | ||
| <fpage>¿PAGE?</fpage> | ||
| <permissions> | ||
| <copyright-statement>Authors of papers retain copyright and release the | ||
| work under a Creative Commons Attribution 4.0 International License (CC | ||
| BY 4.0)</copyright-statement> | ||
| <copyright-year>1970</copyright-year> | ||
| <copyright-holder>The article authors</copyright-holder> | ||
| <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/"> | ||
| <license-p>Authors of papers retain copyright and release the work under | ||
| a Creative Commons Attribution 4.0 International License (CC BY | ||
| 4.0)</license-p> | ||
| </license> | ||
| </permissions> | ||
| <kwd-group kwd-group-type="author"> | ||
| <kwd>Python</kwd> | ||
| <kwd>life cycle assessment</kwd> | ||
| <kwd>prospective</kwd> | ||
| <kwd>dynamic</kwd> | ||
| <kwd>time-explicit</kwd> | ||
| </kwd-group> | ||
| </article-meta> | ||
| </front> | ||
| <body> | ||
| <sec id="summary"> | ||
| <title>Summary</title> | ||
| <p><monospace>bw_timex</monospace> is a Python package for | ||
| time-explicit Life Cycle Assessment (LCA) that quantifies | ||
| environmental impacts of products and processes over time. It accounts | ||
| for:</p> | ||
| <list list-type="bullet"> | ||
| <list-item> | ||
| <p>the timing of processes throughout the supply chain (e.g., | ||
| end-of-life treatment occurs 20 years after construction),</p> | ||
| </list-item> | ||
| <list-item> | ||
| <p>variable and/or evolving supply chains and technologies (e.g., | ||
| increasing shares of renewable electricity in the future), and</p> | ||
| </list-item> | ||
| <list-item> | ||
| <p>the timing of emissions (e.g., enabling the use of dynamic | ||
| characterization functions).</p> | ||
| </list-item> | ||
| </list> | ||
| <p>To achieve this, <monospace>bw_timex</monospace> uses graph | ||
| traversal to propagate temporal information through the product system | ||
| and then automatically re-links Life Cycle Inventories (LCIs) across | ||
| LCI databases representing specific points in time. The resulting | ||
| time-explicit LCI reflects the current technology status within the | ||
| product system at the actual time of each process. Moreover, | ||
| <monospace>bw_timex</monospace> preserves the timing of emissions, | ||
| enabling advanced dynamic characterization methods alongside standard | ||
| static characterization factors.</p> | ||
| </sec> | ||
| <sec id="statement-of-need"> | ||
| <title>Statement of need</title> | ||
| <p>LCA traditionally assumes a static LCI, in which all processes | ||
| occur simultaneously and do not change over time. To add a temporal | ||
| dimension in LCA, the fields of dynamic LCA (dLCA) and prospective LCA | ||
| (pLCA) have emerged. While dLCA focuses on when emissions occur and | ||
| how impacts are distributed over time, it typically assumes the | ||
| underlying product system remains unchanged. Conversely, pLCA tracks | ||
| how processes evolve using future scenarios but generally only | ||
| assesses a single discrete point in time, overlooking that processes | ||
| occur at different times across a product’s life cycle. Both fields | ||
| have seen open-source tool development in recent years, including | ||
| <monospace>Temporalis</monospace> for dLCA and | ||
| <monospace>premise</monospace> and <monospace>pathways</monospace> for | ||
| pLCA. However, a comprehensive open-source package for joint | ||
| dynamic-prospective LCA, i.e., time-explicit LCA, has been lacking | ||
| until now.</p> | ||
| <p><monospace>bw_timex</monospace> addresses this gap by providing a | ||
| framework for time-explicit LCA calculations within the Brightway | ||
| ecosystem. It enables accounting for both the timing of processes and | ||
| emissions as well as the state of the product system at the respective | ||
| points in time. This makes <monospace>bw_timex</monospace> | ||
| particularly useful for studies involving variable or strongly | ||
| evolving product systems, long-lived products, and biogenic | ||
| carbon.</p> | ||
| </sec> | ||
| <sec id="acknowledgements"> | ||
| <title>Acknowledgements</title> | ||
| <p>tba</p> | ||
| </sec> | ||
| </body> | ||
| <back> | ||
| </back> | ||
| </article> |
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