Communication Dans Un Congrès Année : 2024

Electric Motors: A Parametrized Life Cycle Inventory Model Bolstered by Interdisciplinary Primary Data

Résumé

In the context of the energy transition, the “electrical vector” is a key player, with rotating electrical machines such as motors and alternators playing a central role. The filament windings, which constitute the “active” element of these machines, represent a significant concern, as they contribute to nearly 30% of the machine failures, which are primarily due to insulation issues. This not only limits the system’s operational lifetime but also presents a challenge to the sustainable management of resources. Consequently, within the context of eco-design of electric machines it becomes imperative to improve our understanding of winding lifetime. The identification of the fundamental design and usage parameters can facilitate the environmental optimization of these rotating machines, as well as the characterization of the associated uncertainties. This work employs an interdisciplinary approach that integrates insights from mechanical & materials sciences with those from environmental sciences. The objective is to present a procedure to identify the influential motor design and usage parameters affecting environmental impacts and to discuss the potential advantages of a combined approach for their determination. A parametric Life Cycle Analysis (LCA) model enables the calculation of materials and energy quantities based on a set of architectural and usage entry parameters of the electric motor. This type of modeling enables the handling of uncertainties associated with each parameter. These uncertainties will propagate to the bill of materials and energy up to the final impact results. The parameterized model allows for the identification of design and usage parameters driving the final environmental impacts through sensitivity analysis. As motor lifetime stands out as a significant factor influencing impacts, mechanical testing and materials sciences provide a reliable means of determining the lifetime behavior of electric motors as a function of design and usage parameters. A physical model that is empirically determined and that relates motor design and usage parameters to lifetime is presented. The model is then employed to calculate the lifetime within a parameterized LCA model of an electric motor. This procedure enables a more end-use oriented determination of material and energy quantities across the life cycle of the electric motors, thus allowing more accurate impact calculations.

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Dates et versions

hal-04782960 , version 1 (14-11-2024)

Identifiants

  • HAL Id : hal-04782960 , version 1

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Mohamed Sahaoui, Mathilde Marchand, Pierre Arnaud, Sébastien Joannès, Paula Pérez-López. Electric Motors: A Parametrized Life Cycle Inventory Model Bolstered by Interdisciplinary Primary Data. SETAC Europe 26th LCA Symposium, Oct 2024, Gothenburg, Sweden. ⟨hal-04782960⟩
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