Searching an optimal experiment observation sequence to estimate the thermal properties of a multilayer wall under real climate conditions - Archive ouverte HAL
Article Dans Une Revue International Journal of Heat and Mass Transfer Année : 2020

Searching an optimal experiment observation sequence to estimate the thermal properties of a multilayer wall under real climate conditions

Résumé

The in situ estimation of the thermal properties of existing building wall materials is a computationally expensive procedure. Its cost is highly proportional to the duration of measurements. To decrease the computational cost a methodology using a D-optimum criterion to select an optimal experiment duration is proposed. This criterion allows to accurately estimate the thermal properties of the wall using a reduced measurement plan. The methodology is applied to estimate the thermal conductivity of the three-layer wall of a historical building in France. Three different experiment sequences (one, three and seven days) and three spatial distributions of the thermal conductivity are investigated. Then using the optimal duration of observations the thermal conductivity is estimated using the hybrid optimization method. Results show a significant reduction of computational time; and reliable simulation of physical phenomena using the estimated values.
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Dates et versions

hal-03420317 , version 1 (17-11-2021)

Identifiants

Citer

Ainagul Jumabekova, Julien Berger, Aurélie Foucquier, George Dulikravich. Searching an optimal experiment observation sequence to estimate the thermal properties of a multilayer wall under real climate conditions. International Journal of Heat and Mass Transfer, 2020, 155, pp.119810. ⟨10.1016/j.ijheatmasstransfer.2020.119810⟩. ⟨hal-03420317⟩
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