By Frank Werner
In an environmental existence cycle evaluation of goods (LCA), an unambiguous, scientifically dependent, ‘objective’ attribution of fabric and effort flows to a product is natural fiction. this can be as a result basic epistemological stipulations of LCA as a modelling technique below the complexity of our socio-economic procedure. as a substitute, numerous psychological types and values advisor this attribution. This ends up in a practical version in a selected selection situation.
This e-book indicates for the 1st time how psychological versions and values impression this attribution within the existence cycle stock step of LCA. one of many key findings is that the various administration principles for a sustainable use of fabrics needs to be taken under consideration for the attribution of fabric and effort flows to a product. another way, development innovations advised by means of an LCA could end up to even irritate the environmental state of affairs if reassessed from a meta-perspective.
As a final result of this booklet, the declare of unambiguitiy (‘objectivity’) of the existence cycle stock has to be deserted. A group-model construction technique for LCA is built that enables one to know the choice makers' psychological types and values within the stock research on a case- and situation-specific foundation. in simple terms by way of this, LCA effects turns into suitable in a decision-making process.
Two case stories at the modelling of recycling and different end-of-life recommendations of aluminium home windows and beech wooden railway sleepers in LCA supplement the methodological part.
This e-book is a ‘must have’ for researchers, specialists and practitioners within the fields of decision-oriented lifestyles cycle review in addition to product-related environmental administration, modelling and decision-making.
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Extra resources for Ambiguities in Decision-oriented Life Cycle Inventories: The Role of Mental Models and Values
Recommendations are made for the choice of an allocation procedure for reuse & recycling. Chapter 7 summarises the role of the decision-maker’s mental models and values for the attribution in the life cycle inventory analysis. Part IV contains the first case study, an LCA of aluminium window frames where the value-corrected substitution is developed (introduced with Chapter 8). 4 in an optimal way. Taking into account market and material characteristics as well as the respective management rules for a sustainable use of the material has been claimed essential for meeting ‘causality’ in the attribution of material and energy flows to the product under study (Chap.
4) Mental models and value choices in the inventory analysis (4-7) Analysis of ISO 14040 for mental models and values in the inventory analysis (5) Survey on allocation procedures for open-loop recycling (6) Role of the decision-maker’s mental models and values in inventory analysis (7) Context of application Case study I: Development of the value corrected substitution for aluminium windows (8-13) Case study II: Modelling end-of-life options for beech wood railway sleepers (14-19) Conclusions Conclusions and outlook (20-24) Figure 1-2.
6). The allocation problem in LCA is a sub-problem of the attribution problem. The term allocation, however, is also used for other purposes, especially in economic theory with respect to the allocation of scarce resources. Ambiguity in the setting up of the product system requires the implicit or explicit application of mental models or value choices67. The influence of mental models and value choices on the attribution is a central aspect of this book, which is intensely discussed in Part III.