EAC - Comunicações em actas de encontros científicos internacionais
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- Movable Insulation Systems in Building Envelopes: A Review of Heat Transfer MechanismsPublication . Teixeira, J.; Aelenei, Daniel; Santos, Filipe; Aelenei, Laura ElenaABSTRACT: Movable insulation systems have attracted growing interest as a strategy to enhance the thermal adaptability of building envelopes and improve building energy performance under variable climatic conditions. These systems include various solutions that modify the thermal configuration of the envelope through the displacement or reconfiguration of insulating components. Existing studies have examined such systems across different climates, building types, and design approaches. However, existing literature reviews are often organised according to typological or construction-based classifications, rather than by the underlying heat transfer mechanisms that govern their thermal behaviour. This article presents a review of movable insulation systems with a particular focus on the underlying heat transfer mechanisms through which they affect envelope performance. The review analyses how movable insulation influences conductive, convective, and radiative heat transfer, and how these mechanisms relate to the thermal behaviour of the envelope in different operating modes. The review also addresses how performance has been modelled and assessed in the literature, identifying this as a comparatively underexplored dimension of movable insulation research. By structuring the literature around fundamental heat transfer processes, the review aims to provide a coherent framework for interpreting existing research, identifying knowledge gaps, particularly in modelling and performance evaluation.