Contribution of Thermal Inertia to the Interior Climate of Girona Cathedral: Feasibility Analysis for the Preservation of Pieces of Art through the Monitoring of Thermal Conditions for 6 Years

Jordi Corominas i Tabares, Antoni Fonseca i Casas and Pau Fonseca i Casas
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Jordi Corominas i Tabares: Oogwy, 17007 Girona, Spain
Antoni Fonseca i Casas: Polyhedra Tech, 08026 Barcelona, Spain
Pau Fonseca i Casas: Statistics and Operations Research Department, Universitat Politècnica de Catalunya, BarcelonaTech, 08034 Barcelona, Spain

Energies, 2022, vol. 15, issue 4, 1-24

Abstract: The purpose of this study is to determine Girona Cathedral’s thermal performance and to verify that it is suitable for containing historical pieces of art. We present the results of our analysis of the indoor thermal conditions during the period from January 2011 to December 2016. Real data were collected from strategically located probes inside the cathedral and from an outside weather station. The results were compared with an EnergyPlus computer model to verify the calculations and improve decision making. The model considers the envelope’s thermal inertia, the characteristics of the enclosure, and the passive systems for performing thermal analysis. The cathedral’s indoor environment is very stable. Because of a high capability of thermal-energy accumulation, a one-month thermal lag between indoor and outdoor temperatures exists. Furthermore, the maximum and minimum temperatures are dampened, with a two-degree variation above or below the outdoor average, depending on the season. The outdoor humidity can vary from 40% to 100% daily, whereas the indoor humidity variation is around 5%. This indoor stable condition protects the artistic objects in the building. This six-year monitoring and analysis allows for the determination that high-inertia buildings are suitable for displaying and preserving pieces of art and antique furniture, protecting them from deterioration.

Keywords: thermal inertia; temperature; simulation; cathedral; indoor conditions; EnergyPlus model; monitoring; thermal behavior (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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