- Journal Article
Life cycle assessment (LCA) has become the prevalent approach for quantifying the environmental impact of products over their entire life cycle. Unfortunately, LCA studies require large amounts of data that are difficult to collect in practice, which makes them expensive and time consuming. This work introduces a method that simplifies standard LCA studies by using proxy metrics that are identified following a systematic approach. Our method, which combines multi-linear regression and mixed-integer linear programming, builds in an automatic manner simplified multi-linear regression models of impact that predict (with high accuracy) the damage in different environmental categories from a reduced number of proxy metrics. Our approach was applied to data retrieved from ecoinvent. Numerical results show that few indicators suffice to describe the environmental performance of a process with high accuracy. Our findings will help develop general guidelines for simplified LCA studies that will focus on quantifying a reduced number of key indicators. © 2015 Elsevier Ltd. Show more
Journal / seriesComputers & Chemical Engineering
Pages / Article No.
SubjectMulti-linear regression; Streamlined LCA analysis; Environmental impact prediction; Mixed-integer linear programming; Life cycle assessment
Organisational unit09655 - Guillén Gosálbez, Gonzalo / Guillén Gosálbez, Gonzalo
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