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Assessing the role of simulation tool selection for the evaluation of heat and moisture balance in historic buildings

Gori, V; Efthymiopoulos, S; Tian, X; Dong, J; Marincioni, V; (2021) Assessing the role of simulation tool selection for the evaluation of heat and moisture balance in historic buildings. In: IOP Conference Series: Earth and Environmental Science. IOP Publishing: Bolzano-Bozen, Italy. Green open access

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Abstract

A dramatic improvement of the efficiency of existing dwellings is essential to tackle the climate emergency. About 30% of the European domestic building stock is classified as heritage, with generally poor thermal performance. While retrofitting of historic buildings is therefore essential, it presents increased challenges and risks compared to more modern ones. This is due to preservation requirements, the wider range of pre-retrofit conditions, the limited availability of reliable information on the building fabric and its complex hygrothermal behaviour. These challenges are reflected in the limited ability of current simulation tools to provide representative energy performance estimations for historic buildings, where large discrepancies with in-situ measurements are often unacceptable. This research compared three common dynamic simulation tools (EnergyPlus, IESVE, and WUFI Plus) to explore their relative strengths and weaknesses within the context of historic buildings. A 18th century barn was used as case study. Energy demand, indoor temperature and relative humidity outputs were assessed and compared using descriptive and inferential statistics. Results showed the importance of tool selection depending on the aim of the analysis. While IESVE and EnergyPlus showed similar results for energy performance and heating loads; WUFI Plus and IESVE were more consistent for indoor conditions and thermal comfort evaluation.

Type: Proceedings paper
Title: Assessing the role of simulation tool selection for the evaluation of heat and moisture balance in historic buildings
Event: SBE21 Sustainable Built Heritage
Location: Bolzano-Bozen, Italy
Dates: 14 April 2021 - 16 April 2021
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/1755-1315/863/1/012050
Publisher version: https://doi.org/10.1088/1755-1315/863/1/012050
Language: English
Additional information: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Keywords: Historic buildings, Heat and Moisture balance, Dynamic simulation, Retrofit, Energy efficiency
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10138785
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