Download Goal and Scope Definition in Life Cycle Assessment by Mary Ann Curran PDF
By Mary Ann Curran
This booklet describes the significance of the aim and scope part for the complete LCA learn. during this first section of the LCA framework (ISO standardized), the aim of the review is outlined and judgements are made concerning the info of the economic method being studied and the way the learn may be performed. picking out impression different types, type symptoms, characterization types, and peer assessment is set in the course of objective and scope definition. The publication offers useful suggestions and an summary of LCIA equipment on hand in LCA software program. even if no longer laid out in the ISO criteria, Attributional LCA and Consequential LCA are awarded for you to correctly verify the objective and scope of an review. The ebook closes with the interconnection among target and scope definition and the translation section. instance objective and scope records for attributional and consequential LCAs are supplied within the annexes.
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Because the choice of recycling allocation methodology can significantly influence the LCI results, several approaches will be explored in this analysis, including sharing the burdens for a given quantity of resin equally between multiple uses of the resin (Method 1), assigning the resin production burdens to the system first using the virgin resin (Method 2), or transferring the resin production burdens from the system first using the virgin resin to the system that uses the recovered resin (Method 3).
EMR assigned to a material is not the energy value of the final product, but is the energy value of the raw material at the point of extraction from its natural environment. For fossil fuels, this definition is straightforward. For instance, petroleum is extracted in the form of crude oil. Therefore, the EMR for petroleum is the higher heating value of crude oil. Once the feedstock is converted to a product, there is energy content that could be recovered, for instance through combustion in a waste-to-energy waste disposal facility.
As such, the study includes definition of goal and scope, life cycle inventory (LCI), life cycle impact assessment (LCIA), and interpretation of results. , extraction of petroleum and natural gas as feedstocks for plastic resins; growing corn used as a feedstock for polylactide resin, commonly referred to as PLA) • Processing and fabrication steps to transform raw materials into containers and closures (water bottles, HOD bottles, reusable containers) • Manufacture of materials used to package containers for retail shipment (corrugated trays, plastic film) • Water treatment processes • Container filling and washing operations (including industrial washing of HOD bottles and home washing of reusable drinking vessels) • Distribution of filled containers • Optional processes for chilling water • End-of-life management of containers and packaging.