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In order to reach the ambitious decarbonizing goals set by the European Union for 2030, deep renovation of the existing European building stock is a key issue. Within this context, the recently funded H2020 project “e-SAFE” is investigating market-ready wooden envelope renovation solutions for non-historic buildings, which encompass both energy and seismic improvement. The research carried out in the project aims at developing, testing and demonstrating these solutions on a real pilot. More specifically, this paper presents preliminary analyses to verify that the solutions satisfy the requisites set by the national regulations in force in most European countries, in terms of hygrothermal and acoustic performance. The analysis, carried out following relevant technical European Standards and based on calculations, considers different climate conditions and existing wall structures, selected amongst those most commonly adopted in Europe. The results show that the addition of a Cross Laminated Timber (CLT) layer with some wooden-based insulation on the outer side allows reaching very good thermal and acoustic performance. However, interstitial condensation may occur in cold climates under high indoor humidity values. This aspect deserves further investigation accounting for the transient behavior of the walls and all vapor transport mechanisms.
Gianpiero Evola; Vincenzo Costanzo; Luigi Marletta. Hygrothermal and Acoustic Performance of Two Innovative Envelope Renovation Solutions Developed in the e-SAFE Project. Energies 2021, 14, 4006 .
AMA StyleGianpiero Evola, Vincenzo Costanzo, Luigi Marletta. Hygrothermal and Acoustic Performance of Two Innovative Envelope Renovation Solutions Developed in the e-SAFE Project. Energies. 2021; 14 (13):4006.
Chicago/Turabian StyleGianpiero Evola; Vincenzo Costanzo; Luigi Marletta. 2021. "Hygrothermal and Acoustic Performance of Two Innovative Envelope Renovation Solutions Developed in the e-SAFE Project." Energies 14, no. 13: 4006.
The increase of the urban warming phenomenon all over the world is gaining increasing attention from scientists as well as planners and policymakers due to its adverse effects on energy consumption, health, wellbeing, and air pollution. The protection of urban areas from the outdoor warming phenomenon is one of the challenges that policy and governments have to tackle as soon as possible and in the best possible way. Among the urban heat island mitigation techniques, cool materials and urban greening are identified as the most effective solutions in reducing the urban warming phenomenon. The effects produced by the adoption of cool materials and urban forestation on the urban microclimate were investigated through a computational fluid-dynamic (CFD) model. The CFD model was calibrated and validated thanks to experimental surveys within the Catania University campus area. The urban microclimate thermal comfort analysis and assessment were carried out with the Klima–Michel Model (KMM) and Munich Energy Balance Model for Individuals (MEMI). In particular, three scenarios were performed: cool, low, and high levels of urban greening. The cool scenario, although it produces air temperature at around 1.00 °C, determines the worst condition of outdoor thermal comfort, especially at the pedestrian level. On the contrary, a high level of urban greening, obtained by the extensive green roofs together with an urban forestation, guarantees the wellbeing of pedestrians, showing more convenient values of PMV and PET.
Maurizio Detommaso; Antonio Gagliano; Luigi Marletta; Francesco Nocera. Sustainable Urban Greening and Cooling Strategies for Thermal Comfort at Pedestrian Level. Sustainability 2021, 13, 3138 .
AMA StyleMaurizio Detommaso, Antonio Gagliano, Luigi Marletta, Francesco Nocera. Sustainable Urban Greening and Cooling Strategies for Thermal Comfort at Pedestrian Level. Sustainability. 2021; 13 (6):3138.
Chicago/Turabian StyleMaurizio Detommaso; Antonio Gagliano; Luigi Marletta; Francesco Nocera. 2021. "Sustainable Urban Greening and Cooling Strategies for Thermal Comfort at Pedestrian Level." Sustainability 13, no. 6: 3138.
Building energy simulations are normally run through Typical Weather Years (TWYs) that reflect the average trend of local long-term weather data. This paper presents a research aimed at generating updated typical weather files for the city of Catania (Italy), based on 18 years of records (2002–2019) from a local weather station. The paper reports on the statistical analysis of the main recorded variables, and discusses the difference with the data included in a weather file currently available for the same location based on measurements taken before the 1970s but still used in dynamic energy simulation tools. The discussion also includes a further weather file, made available by the Italian Thermotechnical Committee (CTI) in 2015 and built upon the data registered by the same weather station but covering a much shorter period. Three new TWYs are then developed starting from the recent data, according to well-established procedures reported by ASHRAE and ISO standards. The paper discusses the influence of the updated TWYs on the results of building energy simulations for a typical residential building, showing that the cooling and heating demand can differ by 50% or even 65% from the simulations based on the outdated weather file.
Vincenzo Costanzo; Gianpiero Evola; Marco Filippo Infantone; Luigi Marletta. Updated Typical Weather Years for the Energy Simulation of Buildings in Mediterranean Climate. A Case Study for Sicily. Energies 2020, 13, 4115 .
AMA StyleVincenzo Costanzo, Gianpiero Evola, Marco Filippo Infantone, Luigi Marletta. Updated Typical Weather Years for the Energy Simulation of Buildings in Mediterranean Climate. A Case Study for Sicily. Energies. 2020; 13 (16):4115.
Chicago/Turabian StyleVincenzo Costanzo; Gianpiero Evola; Marco Filippo Infantone; Luigi Marletta. 2020. "Updated Typical Weather Years for the Energy Simulation of Buildings in Mediterranean Climate. A Case Study for Sicily." Energies 13, no. 16: 4115.