Fabrice Mathieux

Contribution to the characterisation of eco-design projects

Lots of eco-designed projects were carried out successfully, and eco-designed products are now on the market. However, it is very difficult for designers and engineers to compare their design projects to those already done and consequently to reuse the knowledge gained. In a more general perspective, a method to take advantage of previous experiences in eco-design is needed. This paper is a contribution to develop a standard for eco-design practices and proposes a framework to characterise both eco-design projects and eco-tools. Forty case studies from the literature were exploited to extract criteria and options to define the framework. The proposed usage-oriented classification of eco-tools, associated with the practical analysis frame of the design projects, was implemented and finally robust enough to characterise 40 projects.

A new 'in-use energy consumption' indicator for the design of energy efficient electr(on)ics

One of the challenging environmental issues faced by the electr(on)ic industry is the development of energy-efficient products during their use. Indeed, regulations, standards, and consumers always have growing expectations on this aspect. Nevertheless, tools to support design for energy efficiency in use are scarce and do not always give an appropriate answer to the challenge. This paper presents a new methodology based on the calculation of an indicator that enables a design team to drive energy efficiency more effectively during the design process. The indicator combines the power of components with time spent by these components to do their jobs, in order to lead to energy consumption estimation. When used for design purposes, the method can provide the team with a relevant analysis of the energetic performances of the product, including modes, jobs and scenarios variations. This analysis can lead to products’ hot spots and eventually to design strategies. A case study on an existing electr(on)ic equipment is proposed for illustration purposes.

In search of standards to support circularity in product policies: A systematic approach

The aspiration of a circular economy is to shift material flows toward a zero waste and pollution production system. The process of shifting to a circular economy has been initiated by the European Commission in their action plan for the circular economy. The EU Ecodesign Directive is a key policy in this transition. However, to date the focus of access to market requirements on products has primarily been upon energy efficiency. The absence of adequate metrics and standards has been a key barrier to the inclusion of resource efficiency requirements. This paper proposes a framework to boost sustainable engineering and resource use by systematically identifying standardization needs and features. Standards can then support the setting of appropriate material efficiency requirements in EU product policy. Three high-level policy goals concerning material efficiency of products were identified: embodied impact reduction, lifetime extension and residual waste reduction. Through a lifecycle perspective, a matrix of interactions among material efficiency topics (recycled content, re-used content, relevant material content, durability, upgradability, reparability, re-manufacturability, reusability, recyclability, recoverability, relevant material separability) and policy goals was created. The framework was tested on case studies for electronic displays and washing machines. For potential material efficiency requirements, specific standardization needs were identified, such as adequate metrics for performance measurements, reliable and repeatable tests, and calculation procedures. The proposed novel framework aims to provide a method by which to identify key material efficiency considerations within the policy context, and to map out the generic and product-specific standardisation needs to support ecodesign. Via such an approach, many different stakeholders (industry, academics, policy makers, non-governmental organizations etc.) can be involved in material efficiency standards and regulations. Requirements and standards concerning material efficiency would compel product manufacturers, but also help designers and interested parties in addressing the sustainable resource use issue.

Collaborative network with SMEs providing a backbone for urban PSS: a model and initial sustainability analysis

High-technology Small and Medium Enterprises (SMEs) have regularly shown their capacities for creating and developing innovative services. However, their reduced size often confines them to vertical applications and limits the possibilities for broader development. Strategies grouping SMEs into collaborative networks are possible but sometimes need a strong leader to ensure credibility. On the other hand, large integrator–operators cannot be proficient in all the necessary domains, particularly when applications move very fast. They very much need the diversity and the dynamics of these SMEs to provide service packages with a common service backbone. Uniting the different actors is a challenge displaying good promises from various perspectives including sustainability. However, it is necessary that the links between the different partners and their corresponding activities be correctly represented in a model to be understood. This article proposes a new model for activities and processes in firms collaborating together in a network. A clearer understanding of the organisation acquired with the model, which is then used to discuss sustainability issues within the network.

The search for an appropriate end-of-life formula for the purpose of the European Commission Environmental Footprint initiative

PurposeThis paper explains in details the rationale behind the choice of the end-of-life allocation approach in the European Commission Product Environmental Footprint (PEF) and Organisational Environmental Footprint (OEF) methods. The end-of-life allocation formula in the PEF/OEF methods aims at enabling the assessment of all end-of-life scenarios possible, including recycling, reuse, incineration (with heat recovery) and disposal for both open- and closed-loop systems in a consistent and reproducible way. It presents how the formula builds on existing standards and how and why it deviates from them.MethodsVarious end-of-life allocation approaches and formulas, mainly taken not only from/based on existing environmental impact assessment methods and/or standards but also one original linearly degressive approach, were analysed against a predetermined set of criteria, reflecting the overall aim of the PEF/OEF methods. This set of criteria is physical realism, distribution of burdens and benefits in a product cascade system and applicability. Besides the qualitative analysis, the various formulas were implemented for several products and for different scenarios regarding recycled content and recyclability to check the robustness of the outcomes, exemplary expressed for the Global Warming Potential impact category.Results and discussionAs reaching physical realism was impossible at both the product and overall product cascade system level by any of the end-of-life approaches analysed, one of both had to be prioritised. The paper explains in details why a product level approach was preferred in the context of the PEF/OEF methods. In consequence, allocation of the end-of-life processes which are related to more than one product in a product cascade system is needed and should be carefully considered as it has a major influence on the results and decision taking.ConclusionsA formula taking into account the number of recycling cycles of a material was identified as preferred to reach physical realism and to allocate burdens and benefits of repeatedly recycling of a material over the different products in a product cascade system. However, this approach was not selected for the PEF/OEF methods as data on the number of recycling cycles was insufficiently available (for the time being) for all products on the market and hence fails the criterion of “applicability”. This explains why, instead, a formula based on the 50:50 approach—allocating shared end-of-life processes equally between the previous and subsequent product—was selected for the PEF/OEF methods.

Challenges and opportunities for web-shared publication of quality-assured life cycle data: the contributions of the Life Cycle Data Network

PurposeThe European Commission’s Integrated Product Policy Communication, 2003, defined Life Cycle Assessment (LCA) as the ‘best framework for assessing the potential environmental impacts of products’. Since then, the use of LCA and life cycle approaches has been developing in a wide range of European policies, and its use has also significantly grown in business. Increasing the availability of quality-assured Life Cycle Inventory (LCI) data is the current challenge to ensure the development of LCA in various areas.MethodsOne solution to increase availability is to use LCI data from multiple database sources but under the condition that such LCI data are fully interoperable.Results and discussionThis paper presents original solutions and recent achievements towards increased availability, quality and interoperability of life cycle inventory data, developed through European Commission-led activities and based on wide stakeholder consultation and international dialogue. An overview of related activities, such as the International Reference Life Cycle Data System (ILCD), the European Reference Life Cycle Database (ELCD) and the ILCD Entry-Level quality requirements are presented. The focus is then on the Life Cycle Data Network (LCDN).ConclusionsA non-centralised data network of LCI datasets complying with minimum quality requirements that was politically launched in February 2014, already includes several database nodes from different worldwide sources and has the potential to contribute to the needs of the international community.

Ease of disassembly of products to support circular economy strategies

Graphical abstract

Background qualitative analysis of the European Reference Life Cycle Database (ELCD) energy datasets – Part I: Fuel datasets

The aim of this paper is to identify areas of potential improvement of the European Reference Life Cycle Database (ELCD) electricity datasets. The revision is based on the data quality indicators described by the International Life Cycle Data system (ILCD) Handbook, applied on sectorial basis. These indicators evaluate the technological, geographical and time-related representativeness of the dataset and the appropriateness in terms of completeness, precision and methodology. Results show that ELCD electricity datasets have a very good quality in general terms, nevertheless some findings and recommendations in order to improve the quality of Life-Cycle Inventories have been derived. Moreover, these results ensure the quality of the electricity-related datasets to any LCA practitioner, and provide insights related to the limitations and assumptions underlying in the datasets modelling. Giving this information, the LCA practitioner will be able to decide whether the use of the ELCD electricity datasets is appropriate based on the goal and scope of the analysis to be conducted. The methodological approach would be also useful for dataset developers and reviewers, in order to improve the overall Data Quality Requirements of databases.

Synergico: a method for systematic integration of energy efficiency into the design process of electr(on)ic equipment

This paper presents an overall design method to better consider the energy consumption of electrical and electronic equipment during the use phase. This aspect is often considered as the most important environmental aspect in active electrical and electronic equipment during its life cycle. The proposed method, called ‘Synergico’, characterises the product energy efficiency according to its modes, its functions and its sub-assemblies. It also articulates three tools: one assessment tool, one improvement tool and one environmental check tool. These tools are integrated along a typical product design process. The method therefore helps designing more energy-efficient products without compromising other performances such as ergonomics, functional performances, security, recyclability or costs. The three tools and the overall method are presented. A case study illustrates the way it works and is discussed.

Towards a durability test for washing machines

Highlights • An original test was developed to check the durability of the whole washing-machine.• The durability test was based on accelerated life tests and conditions of stress.• Limitations of the method and improvement potentials are highlighted.• Results can be used by standardisation activities to enhance durability requirements.