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Energy Performance Certification: Is the software currently used in Malta suitable for the energy assessment of its historic buildings?

Mallia, Roberta. M. and Prizeman, Oriel 2018. Energy Performance Certification: Is the software currently used in Malta suitable for the energy assessment of its historic buildings? Presented at: 3rd International Conference on Energy Efficiency in Historic Buildings 2018, Visby, Sweden, 26-27 September 2018. Published in: Brostrom, Tor, Nilsen, Lisa and Carlsten, Susanna eds. Energy Efficiency in Historic Buildings. Uppsala: Uppsala University, Department of Art History, pp. 264-273.

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Abstract

Abstract –The aim of this study is to assess whether the official Maltese software used for Energy Performance Certifications for Non-Dwellings, Simplified Building Energy Model (SBEM) is suitable for the assessment of historic buildings. The study takes into consideration two Maltese historic non-dwellings, Auberge de France, Birgu and Casa Rocca Piccola, Valletta, which were modelled using quasi-steady state software (SBEM) and dynamic software (DesignBuilder®). Results from the two models were compared between the two and with actual energy consumption. These comparisons indicated that SBEM over-estimates the energy usage in historic buildings. Results obtained from dynamic simulation approached the actual consumption closer, although discrepancies were noted. It is recommended that historic buildings are assessed using a proposed hybrid software, which allows for the dynamic nature of the building’s thermal performance whilst having partially fixed datasets to improve reproducibility. When possible this should be substantiated by the Operational Rating of the historic building.

Item Type: Conference or Workshop Item (Paper)
Date Type: Published Online
Status: Published
Schools: Architecture
Subjects: N Fine Arts > NA Architecture
Publisher: Uppsala University, Department of Art History
ISBN: 978-91-519-0838-0
Date of First Compliant Deposit: 15 April 2019
Date of Acceptance: 28 May 2018
Last Modified: 27 Aug 2019 14:58
URI: http://orca.cf.ac.uk/id/eprint/121772

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