Study of methodological approaches for improving environmental performance in complex system design
type: Distribution
access URL: https://theses.hal.science/tel-00969164
format: HTML
issued: 2026-05-05T19:00:53.444506
modified: 2026-05-05T19:00:53.410266

test_moissonnage_selune
type: Agent

Study of methodological approaches for improving environmental performance in complex system design
type: Dataset
contact point: Organization
  fn: CCSD
keyword: developpement-durable
keyword: theses
keyword: spiotherengineering-sciences-physicsother
keyword: complex-system
keyword: ecoconception
keyword: infoeu-reposemanticsdoctoralthesis
keyword: eco-design
keyword: systemes-mecaniques-complexes
keyword: sustainable-developmentsustainable-developmentsustainable-developmentsustainable-development
landing page: https://theses.hal.science/tel-00969164
description: The tendency towards a homogenous mode of development modeled on that of Western countries means that sustainable development has become increasingly urgent. In order to implement such development, it is not enough to make superficial reductions of environmental impacts; it is necessary to thoroughly redefine products and their expected performances in such a way that the consequences are compatible with sustainable development. Many ecodesign tools have been developed to meet the requirements of sustainable development. However, these tools are not generally suitable for the design of complex systems because there are either too specific, too general or based on rules of thumb often unverifiable. That is why we propose in this research to develop a methodological approach for ecodesign complex systems. This research work has led us to develop four methodological approaches each time to provide answers to the identified problem areas: 1. Are the current eco-design tools adapted to take into account the multiple dimensions of system design? 2. How to identify and hierarchize the most promising areas of environmental improvement at the early stages of the design process? 3. How to determine technological solutions adapted to a complex system and guarantee the best environmental performance? 4. Which are the necessary features for optimal environmental performances for a complex system? First, the Pareto / LCA approach, introduced in Chapter 3, is based on a simplification of the system considering that the main sources of impact are generated by a small part of it. It consists of a succession of LCA for each proposed alternative; it is a tedious process optimization. However, this approach provides “good” results and is well suited to designers’ reasoning. Indeed by their industry experience and knowledge of the product, the designer can easily identify the main contributors to impacts. Then we developed an approach presented in Chapter 4 that combines Design of Exper…
identifier: NNT: 2013ECAP0047
issued: 2026-05-05T19:00:53.433362
language: fr
modified: 2026-05-05T19:00:53.433366