On the localised climate change mitigation potential of building facades

Naboni, Emanuele; Milella, Agnese; Vadalà, Roberta; Fiorito, Francesco

doi:10.1016/j.enbuild.2020.110284

Cited by 22 publications

(10 citation statements)

References 36 publications

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“…The variation of temperature on a slab in an external environment presents a periodic behavior, as demonstrated by several authors [24][25][26][27]. Consequently, daily temperature variation can be assumed as a periodic function.…”

Section: Fundamentals and Methodologymentioning

confidence: 98%

On the Thermal Stresses Due to Weathering in Natural Stones

et al. 2021

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Natural weathering is known as one of the key mechanisms causing degradation in building materials. Great efforts have been made to develop new materials and new processes for protecting those that already exist. Natural stones are an example of a natural material that has been extensively used for building construction since ancient times. In addition, they fit durability, aesthetic, and mechanical requirements. Thus, they still have great importance in the construction business nowadays. Though chemical interactions in natural stones, such as oxidation or hydrolyses, have been widely studied, in the last few decades, the physical weathering due to daily temperature variations has begun to be considered as a key mechanism of degradation and has been incorporated in international standards. This process is particularly important in calcitic marble slabs, where it can cause extensive damages to facades. Consequently, there are restrictive rules for the use of marble as an external coating material in many countries. In this paper, the thermal stresses induced by daily variations in temperature are calculated using geographic and meteorological information. The concept of sol-air temperature is used to estimate the temperatures of the hidden and exposed surfaces of a slab, and Fourier’s law and the theory of elasticity are used to calculate the temperature and stress distribution, respectively. The proposed methodology allows for a detailed reconstruction of the stress induced inside marble slabs using parameters commonly acquired in meteorological stations as input data. The developed methodology was validated by comparing in-situ measurements of the temperature of a building in Pescara (Central Italy). A good correlation between the theoretical and real temperatures was found; in particular, the peak tensile stresses inside the slabs were estimated at 75 kPa.

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Section: Fundamentals and Methodologymentioning

confidence: 98%

On the Thermal Stresses Due to Weathering in Natural Stones

et al. 2021

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“…Additionally, open-joint ventilated façade systems [30,31,34,35] and the outer layer material of the façade [36][37][38] have been examined. The impact of wind [39][40][41] and effects of winter conditions on the thermal performance of façade systems have also been investigated, and different results were produced in the latter.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance assessment of opaque ventilated façades for residential buildings in hot humid climates

2023

JCE

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In this paper, the thermal performance of opaque ventilated façades (OVFs) in the Mediterranean climate zone, where passive cooling is a priority, was examined using computational fluid dynamics (CFD). Simulations were carried out to analyse the behaviour of OVF components under different geometric configurations, using weather data for three cities in Turkey that reflect the climatic conditions of a first-degree day region. These data include the air cavity thickness, outlet size, and air cavity height. Unlike in previous literature, two-way outlet ventilation is employed in this study in the analysis of different façade systems for the Mediterranean climate region, and its performance in reducing solar gain is determined. According to the samples examined within the scope of the criteria outlined herein, it was determined that the rate of heat transferred indoors through the façade can be reduced within the range of 69 % to 75 %.

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“…The main component of façade heat exchange are radiation (solar heat gain and thermal emission) and the convection (heat exchanging with surrounding air) (Zingre et al 2015). Climate change, UHI effect, building energy consumption and thermal comfort are all interconnected complex system and difficult to characterize due to various exchange, therefore further research is needed to come up with strategies and solutions (Naboni et al 2020). Tubes details of adaptive shielding form.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Impact of Bio-Inspired Façade Design on Indoor Environment

SHASHWAT¹,

ZINGRE²,

THURAIRAJAH³

2022

Proceedings of International Structural Engineering and Construction

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Bio-inspiration is a growing research field in architecture and urban design where this framework is being used to design and develop sustainable solutions and strategies for improving the overall built environment. In buildings, the façade is the most critical element which differentiates the indoor environment from the outdoor environment. The research related to the quantification of the impact of bio-inspired façade on the indoor environment is limited. This research, therefore, aims to evaluate the impact of three-dimensional retro-reflective design on the building facade. The retro-reflective design can functionally perform to reflect off the incident solar radiation along with providing an aesthetical appeal. The research has been conducted on a (2-storey) typical residential building in the United Kingdom using computational simulation. Test building with bio-inspired façade i.e., retro-reflective design is developed in SketchUp and simulated using OpenStudio and EnergyPlus software. The results were compared against the baseline model with similar dimensions (without the bio-inspired design). The surface inside face temperatures and zone air temperatures are analysed to investigate the impact on the indoor environment. The result shows that the bio-inspired façade design reduces the façade internal surface temperature by up to 3.7°C and zone air temperature by up to 1.9°C under UK’s weather conditions during summer.

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On the localised climate change mitigation potential of building facades

Cited by 22 publications

References 36 publications

On the Thermal Stresses Due to Weathering in Natural Stones

On the Thermal Stresses Due to Weathering in Natural Stones

Thermal performance assessment of opaque ventilated façades for residential buildings in hot humid climates

Investigating the Impact of Bio-Inspired Façade Design on Indoor Environment

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