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Design of the refurbishment of historic buildings with a cost-optimal methodology: a case study

AuthorsSánchez-Ramos, José; Álvarez, Servando; Pavón Moreno, M. Carmen; Guerrero Delgado, M. Carmen; Romero Rodríguez, Laura; Tenorio Ríos, José Antonio
KeywordsNear zero energy building
Life cycle cost
Rehabilitation interventions
Night ventilation
Passive cooling
Issue Date31-Jul-2019
PublisherMultidisciplinary Digital Publishing Institute
CitationApplied Sciences 9(15): 3104 (2019)
AbstractThe transformation of existing buildings into Near Zero Energy Buildings or even positive energy buildings remains a major challenge. In particular, historic buildings are an important cultural heritage that, in most cases, may be rehabilitated and reused for new purposes. However, achieving higher efficiencies in those buildings presents many difficulties, since there is a need to preserve aesthetic values and minimize impact on the buildings’ initial construction. In this work, a roadmap that allows rehabilitating a building from the eighteenth century is developed, turning it into a landmark building, to be used as a museum in the near future. The procedure is based on 3D models using REVIT software and detailed energy simulations supported by a cost-optimal methodology. The results reveal how conventional methodologies shown in the literature may improve the energy performance of the buildings during the heating regime, but performance may deteriorate during the cooling season. For that reason, the present study includes the design of a night ventilation system which allows not only solving this problem but also to reducing the cooling demands by more than 43% with little additional costs. In conclusion, historic buildings (which traditionally have a high thermal mass) have increased thermal storage potential by using the structures of the buildings themselves as well as passive cooling techniques.
DescriptionThis article belongs to the Special Issue Zero-Energy Buildings.
Publisher version (URL)https://doi.org/10.3390/app9153104
Appears in Collections:(IETCC) Artículos
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