WebLCA: a web-based LCA systemlcm-conferences.org/wp-content/uploads/2017... · [email protected] 2 online LCA software & online database system for • ISO-compliant LCA case study

WebLCA: a web-based LCA system

Hongtao Wang, Li Zhang,

Zhilan Jiang, Wenjie Liao

[email protected]

www.weblca.net

software + databases + guidelines for doing LCA fully online

www.weblca.net [email protected] 2

online LCA software & online

database system for

• ISO-compliant LCA case study

• Develop & publish personal

datasets, even national

database

• Supply chain management

2015.8.30

2017.9.6

www.weblca.net [email protected]

2. Create a new model and define goal & scope

3

1. Visit www.weblca.net with your browser

3. Create a unit process

http://www.efootprint.net/


3. Collect inventory data for each unit process

unit process description

new documentation format: MIPS


CLCD documentation format - MIPS

5

• Product/process Specific

• Machine Interpretable

CLCD format - MIPSFormat 1

Format 2

Free text v.s. Pre-defined list


3. Collect inventory data for each unit process unit process description inventory data (inputs & emissions)


3. Collect inventory data for each unit process process description inventory data (inputs & outputs) raw data + mathematical relations + references of

each inventory flow transport of each inventory flow


4. Data sources of upstream process

Use model or results from team members

Search data from

existing databases, incl. CLCD-China, ELCD, ecoinvent

datasets published by other WebLCAusers and contact them for access

Send request to multi-tier suppliers


5. Calculation & analysis

multiple LCIA indicators, such as PEF-14

contribution analysis


5. Calculation & analysis

sensitivity analysis & uncertainty evaluation


Try to be more specific and efficient:

• Not a uniform pedigree matrix, but distinction made between:

• sector average v.s. producer-specific studies

• inputs v.s. emissions

• Single literature v.s. meta-analysis

• Uncertainty of whole model v.s. key data

Pedigree matrix and uncertainty in CLCD


6. Documentation & online review

Invited reviewers are allowed to access the model and data during review period without a copy, and the access can be turned off after review.


Review report (ILCD format)

6. Documentation & online review

Invited reviewers are allowed to access the model and data during review period without a copy, and the access can be turned off after review.

review comments and report


7. Publish your datasets and LCA work

Publish the documentation for search

Share LCA results only OR unit process too

Share data free of charge OR name your price

Your data belong to YOU !

You have full control.


Problems solved?

• Data availability - “LCA data everywhere, but nowhere to found”?

• “Build – publish – search – re-used” all user-generated LCA results

• Is LCA trustable?

• Traceable data source and uncertainty

Potentials

• Capacity building: e.g. “Chinese Internet + LCA Contest 2017” (>60 universities, >110 groups, >500 students)

• Build, update and expand YOUR database, even national database

• PCR templates online for PCFs, EPDs, PEFs

• For companies, in-house supply chain management on daily basis

• Or providing Life Cycle Management service……

Summary


Efficient online survey of supply chainComponents/materials filled in by suppliersTop-level BOM filled in by Lenovo

submit

data

request

One product model, constructed by dozens of suppliers simultaneously

real-time project

management


Full LCA online


Lenove 2014.07 – 2014.08

• 40 suppliers accomplished data survey in just 3 weeks

• Third-party verification within 4 weeks (partially online)

Pilot cases of WebLCA

Better data quality

Efficiency increased by ~10 times !

Integrate more...

CHANGHONG 2014.12.10 –2014.12.25

• Data survey of 14 outsourcing components (from 8 suppliers) accomplished in 2 weeks

长虹美菱BCD-206K3B


Integrate more environmental information

Substance Control

Product &

components

model

Material &

Substance

LCA & PCF …

WebLCA: a web-based LCA systemlcm-conferences.org/wp-content/uploads/2017... · [email protected] 2 online LCA software & online database system for • ISO-compliant LCA case study

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