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Lodi, Chiara and Magli, Susanna and Contini, Francesco Maria and Muscio, Alberto and Tartarini, Paolo (2017) Improvement of thermal comfort and energy efficiency in historical and monumental buildings by means of localized heating based on non-invasive electric radiant panels. Applied Thermal Engineering, 126. ISSN 13594311

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Energy efficiency and thermal comfort in historic buildings are very often hampered by preservation needs. This issue is particularly relevant for historical and monumental buildings, which currently represent a large part of the historic buildings stock in Europe. For such protected buildings most of the available retrofitting solutions are not feasible and alternatives have to be investigated to guarantee their usability potential. The purpose of this study is therefore to present a methodology to evaluate the potential of electric radiant panels as retrofitting solutions for historical and monumental buildings, focusing on thermal comfort and energy saving potential when compared with conventional fossil-fuel-based heating systems. In fact, the non-invasiveness and flexibility of electrical panels make them one of the few feasible solutions for protected buildings. An original methodology is developed to evaluate the performance of such localized heating systems; the methodology is based on a dynamic simulation model, calibrated with temperature measurements, which takes into account the geometry and technical characteristics of electrical radiant panels and allows different control strategies to be compared. The methodology is applied to a relevant Italian historical building. The results show that the panels, despite their well-known low-exergy efficiency, may become a viable and attractive solution for historical buildings without undermining their preservation requirements. Apart from significantly increasing thermal comfort, electric radiant panels may also allow annual heating energy savings up to 70% for the selected building.

Item Type: Article
Uncontrolled Keywords: Electrical heating; Personalized conditioning systems; Comfort Historic buildings; Building energy simulation
Subjects: English > Climate Control
English > Climate Control > Heating
English > Simulation
Depositing User: Susanna Carlsten
Date Deposited: 09 Dec 2020 08:34
Last Modified: 09 Dec 2020 08:34

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