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Communication Dans Un Congrès Année : 2023

Multidisciplinary approaches on a medieval ore mill: energy mix and digital twin

Résumé

The comminution of ores is an important step in the metal operational chain. The ore mill is used to homogenise the granulometry of the ore. There is an intuitive understanding of how a mill works. However, there is little quantitative data on its performance. Yet, those data provide valuable insight into the technical, social and economic decisions of a mining company. As described by Agricola in the De re Metallica (1556), there are several sources of energy to move an ore mill: human, animal or hydraulic. Within the hydraulic systems themselves, there are a number of different types of wheels: horizontal, overshot and undershot. Each of the only three ore mills excavated in Europe for the Middle Ages had a different type of hydraulic wheel. This suggest that the choice of a type of actuator in not only related to its performance but it has to do with the local energy mix, the environment and social choices. Using data of one of the three examples in Europe (Castel-Minier, second half of 14th c.), we have been studying energy flows in ore mill through a multidisciplinary approaches. It allowed us to have quantitative data about the system’s performance depending on environmental parameters. During this study, we used a combination of physical models, experimental archaeology and analysis of textual and archaeological sources. A digital twin of the ore mill was created from those data. It is only through the multiplicity of these approaches that we have been able to integrate energy flows into the understanding of a medieval operational chain.
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Dates et versions

hal-04229970 , version 1 (05-10-2023)

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  • HAL Id : hal-04229970 , version 1

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Florence Maqueda, Nicolas Florsch, Florian Téreygeol. Multidisciplinary approaches on a medieval ore mill: energy mix and digital twin. 29th EAA Annual Meeting, Aug 2023, Belfast, United Kingdom. ⟨hal-04229970⟩
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