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Here, we overview the Buildings journal Special Issue dedicated to the following topic: “Novel Technologies to Enhance Energy Performance and Indoor Environmental Quality of Buildings” (https://www
Alessandro Cannavale; Francesco Martellotta; Francesco Fiorito. Novel Technologies to Enhance Energy Performance and Indoor Environmental Quality of Buildings. Buildings 2021, 11, 303 .
AMA StyleAlessandro Cannavale, Francesco Martellotta, Francesco Fiorito. Novel Technologies to Enhance Energy Performance and Indoor Environmental Quality of Buildings. Buildings. 2021; 11 (7):303.
Chicago/Turabian StyleAlessandro Cannavale; Francesco Martellotta; Francesco Fiorito. 2021. "Novel Technologies to Enhance Energy Performance and Indoor Environmental Quality of Buildings." Buildings 11, no. 7: 303.
Among the adaptive solutions, phase change material (PCM) technology is one of the most developed, thanks to its capability to mitigate the effects of air temperature fluctuations using thermal energy storage (TES). PCMs belong to the category of passive systems that operate on heat modulation, thanks to latent heat storage (LHS) that can lead to a reduction of heating ventilation air conditioning (HVAC) consumption in traditional buildings and to an improvement of indoor thermal comfort in buildings devoid of HVAC systems. The aim of this work is to numerically analyze and compare the benefits of the implementation of PCMs on the building envelope in both active and passive strategies. To generalize the results, two different EnergyPlus calibrated reference models—the small office and the midrise apartment—were considered, and 25 different European cities in different climatic zones were selected. For these analyses, a PCM plasterboard with a 23 °C melting point was considered in four different thicknesses—12.5, 25, 37.5, and 50 mm. The results obtained highlighted a strong logarithmic correlation between PCM thickness and energy reduction in all the climatic zones, with higher benefits in office buildings and in warmer climates for both strategies.
Francesco Carlucci; Alessandro Cannavale; Angela Triggiano; Amalia Squicciarini; Francesco Fiorito. Phase Change Material Integration in Building Envelopes in Different Building Types and Climates: Modeling the Benefits of Active and Passive Strategies. Applied Sciences 2021, 11, 4680 .
AMA StyleFrancesco Carlucci, Alessandro Cannavale, Angela Triggiano, Amalia Squicciarini, Francesco Fiorito. Phase Change Material Integration in Building Envelopes in Different Building Types and Climates: Modeling the Benefits of Active and Passive Strategies. Applied Sciences. 2021; 11 (10):4680.
Chicago/Turabian StyleFrancesco Carlucci; Alessandro Cannavale; Angela Triggiano; Amalia Squicciarini; Francesco Fiorito. 2021. "Phase Change Material Integration in Building Envelopes in Different Building Types and Climates: Modeling the Benefits of Active and Passive Strategies." Applied Sciences 11, no. 10: 4680.
In recent years, Building-Integrated Photovoltaic/Thermal Double-Skin Façade (BIPV/T-DSF) shows great potentials on improving indoor thermal comfort and energy efficiency for buildings. Previous studies assessed both indoor thermal comfort and energy efficiency of a BIPV/T-DSF building through the use of the photovoltaic devices and ventilation types of the BIPV/T-DSF, however, which did not evaluate the effect of other dominant design parameters on the BIPV/T-DSF’s performance. This paper presents a simulation study of sensitivity analysis on the correlations between indoor thermal comfort and energy consumption and various design parameters of the BIPV/T-DSF operating in different configurations and climatic conditions. The results showed that solar heat gain coefficient of the BIPV/T-DSF’s external window possessed the highest importance affecting indoor thermal comfort and energy consumption, while thermal transmittance of both the internal and external windows and cavity depth of the BIPV/T-DSF showed also the notable importance to the building performances.
Siliang Yang; Francesco Fiorito; Deo Prasad; Alistair Sproul; Alessandro Cannavale. A sensitivity analysis of design parameters of BIPV/T-DSF in relation to building energy and thermal comfort performances. Journal of Building Engineering 2021, 41, 102426 .
AMA StyleSiliang Yang, Francesco Fiorito, Deo Prasad, Alistair Sproul, Alessandro Cannavale. A sensitivity analysis of design parameters of BIPV/T-DSF in relation to building energy and thermal comfort performances. Journal of Building Engineering. 2021; 41 ():102426.
Chicago/Turabian StyleSiliang Yang; Francesco Fiorito; Deo Prasad; Alistair Sproul; Alessandro Cannavale. 2021. "A sensitivity analysis of design parameters of BIPV/T-DSF in relation to building energy and thermal comfort performances." Journal of Building Engineering 41, no. : 102426.
The use of titanium dioxide (TiO2) within two specific classes of devices, namely electrochromic and photoelectrochromic, is described hereafter, with respect to its inherent properties and chromogenic features within architectures that have appeared so far, in this field. The new research trends, involving the applications of TiO2 in chromogenic materials are reported, with particular attention paid to the techniques used for film deposition as well as the synthesis of nanoparticles. Furthermore, the main studies concerning its chemical-physical properties and approaches to its chemical syntheses and fabrication are reviewed, with special regard to “green” routes. In addition, the main aspects relating to toxicological profiles are exposed, with reference to nanoparticles and thin films.
Valeria De Matteis; Alessandro Cannavale; Ubaldo Ayr. Titanium Dioxide in Chromogenic Devices: Synthesis, Toxicological Issues, and Fabrication Methods. Applied Sciences 2020, 10, 8896 .
AMA StyleValeria De Matteis, Alessandro Cannavale, Ubaldo Ayr. Titanium Dioxide in Chromogenic Devices: Synthesis, Toxicological Issues, and Fabrication Methods. Applied Sciences. 2020; 10 (24):8896.
Chicago/Turabian StyleValeria De Matteis; Alessandro Cannavale; Ubaldo Ayr. 2020. "Titanium Dioxide in Chromogenic Devices: Synthesis, Toxicological Issues, and Fabrication Methods." Applied Sciences 10, no. 24: 8896.
Chromogenic materials and devices include a wide range of technologies that are capable of changing their spectral properties according to specific external stimuli. Several studies have shown that chromogenics can be conveniently used in building façades in order to reduce energy consumption, with other significant effects. First of all, chromogenics influence the annual energy balance of a building, achieving significant reductions in consumption for HVAC and artificial lighting. In addition, these technologies potentially improve the indoor level of visual comfort, reducing the risks of glare and excessive lighting. This brief review points to a systematic discussion—although not exhaustive and mainly limited to recent results and investigations—of the main studies that deal with building-integrated chromogenics that have appeared, so far, in the scientific literature.
Alessandro Cannavale. Chromogenic Technologies for Energy Saving. Clean Technologies 2020, 2, 462 -475.
AMA StyleAlessandro Cannavale. Chromogenic Technologies for Energy Saving. Clean Technologies. 2020; 2 (4):462-475.
Chicago/Turabian StyleAlessandro Cannavale. 2020. "Chromogenic Technologies for Energy Saving." Clean Technologies 2, no. 4: 462-475.
PhotoVoltaChromic (PVC) cells are among the emerging smart windows technologies with an interesting potential of building integration. PVC technology combines ElectroChromic materials with Dye Sensitized Solar cells in order to have a self-powered adaptive transparent film. The main advantage of this technology is to have an automatic control – potentially manually overridden – of colouration process, depending on levels of solar irradiance. Moreover, a PVC window can operate, at the same time, as a photovoltaic cell, producing energy exceeding the amount required for the colouring process. In the current study, for the first time, the full potential of PVC windows in office buildings is assessed. For this analysis, a PVC cell with a Visible Light Transmittance (VLT) variable between 16.9% and 31.5% has been selected. Australia has been considered as reference location, due to the presence, in its territory, of different climatic regions, ranging from tropical/subtropical climates to the temperate ones. The results show a strong dependence of potential energy savings on Window-to-Wall Ratio (WWR) and solar irradiance on windows. In cooling dominated climates, the adoption of PVC windows has been demonstrated to be always beneficial, even with very low WWR and/or non-optimal exposures, achieving overall energy savings of up to 20%. In heating dominated climates, adoption of PVC windows should be carefully considered, as it is highly beneficial when large glazed surfaces are present. In this case annual total energy savings up to the 32% can be predicted in comparison with buildings equipped with standard clear windows.
Francesco Fiorito; Alessandro Cannavale; Mattheos Santamouris. Development, testing and evaluation of energy savings potentials of photovoltachromic windows in office buildings. A perspective study for Australian climates. Solar Energy 2020, 205, 358 -371.
AMA StyleFrancesco Fiorito, Alessandro Cannavale, Mattheos Santamouris. Development, testing and evaluation of energy savings potentials of photovoltachromic windows in office buildings. A perspective study for Australian climates. Solar Energy. 2020; 205 ():358-371.
Chicago/Turabian StyleFrancesco Fiorito; Alessandro Cannavale; Mattheos Santamouris. 2020. "Development, testing and evaluation of energy savings potentials of photovoltachromic windows in office buildings. A perspective study for Australian climates." Solar Energy 205, no. : 358-371.
This paper holds a critical review of current research activities dealing with smart architectural glazing worldwide. Hereafter, the main trends are analyzed and critically reported, with open issues, challenges, and opportunities, providing an accurate description of technological evolution of devices in time. This manuscript deals with some well-known, highly performing technologies, such as semitransparent photovoltaics and novel photoelectrochromic devices, the readiest, probably, to reach the final stage of development, to disclose the manifold advantages of multifunctional, smart glazing. The complex, overall effects of their building integration are also reported, especially regarding energy balance and indoor visual comfort in buildings.
Alessandro Cannavale; Francesco Martellotta; Francesco Fiorito; Ubaldo Ayr. The Challenge for Building Integration of Highly Transparent Photovoltaics and Photoelectrochromic Devices. Energies 2020, 13, 1929 .
AMA StyleAlessandro Cannavale, Francesco Martellotta, Francesco Fiorito, Ubaldo Ayr. The Challenge for Building Integration of Highly Transparent Photovoltaics and Photoelectrochromic Devices. Energies. 2020; 13 (8):1929.
Chicago/Turabian StyleAlessandro Cannavale; Francesco Martellotta; Francesco Fiorito; Ubaldo Ayr. 2020. "The Challenge for Building Integration of Highly Transparent Photovoltaics and Photoelectrochromic Devices." Energies 13, no. 8: 1929.
Electrochromic systems for smart windows make it possible to enhance energy efficiency in the construction sector, in both residential and tertiary buildings. The dynamic modulation of the spectral properties of a glazing, within the visible and infrared ranges of wavelengths, allows one to adapt the thermal and optical behavior of a glazing to the everchanging conditions of the environment in which the building is located. This allows appropriate control of the penetration of solar radiation within the building. The consequent advantages are manifold and are still being explored in the scientific literature. On the one hand, the reduction in energy consumption for summer air conditioning (and artificial lighting, too) becomes significant, especially in "cooling dominated" climates, reaching high percentages of saving, compared to common transparent windows; on the other hand, the continuous adaptation of the optical properties of the glass to the changing external conditions makes it possible to set suitable management strategies for the smart window, in order to offer optimal conditions to take advantage of daylight within the confined space. This review aims at a critical review of the relevant literature concerning the benefits obtainable in terms of energy consumption and visual comfort, starting from a survey of the main architectures of the devices available today.
Alessandro Cannavale; Ubaldo Ayr; Francesco Fiorito; Francesco Martellotta. Smart Electrochromic Windows to Enhance Building Energy Efficiency and Visual Comfort. Energies 2020, 13, 1449 .
AMA StyleAlessandro Cannavale, Ubaldo Ayr, Francesco Fiorito, Francesco Martellotta. Smart Electrochromic Windows to Enhance Building Energy Efficiency and Visual Comfort. Energies. 2020; 13 (6):1449.
Chicago/Turabian StyleAlessandro Cannavale; Ubaldo Ayr; Francesco Fiorito; Francesco Martellotta. 2020. "Smart Electrochromic Windows to Enhance Building Energy Efficiency and Visual Comfort." Energies 13, no. 6: 1449.
Research activities in the field of innovative fixtures are continuously aiming at increasing their thermal and optical performances to offer optimal exploitation of daylight and solar gains, providing effective climate screen, according to increasing standards for indoor comfort and energy saving. Within this work, we designed an innovative aerogel-based “thermal break” for window frames, so as to consistently reduce the frame conductance. Then, we compared the performance of this new frame both with currently used and obsolete frames, present in most of the existing building stock. Energy savings for heating and cooling were assessed for different locations and confirmed the potential role played by super-insulating materials in fixtures for extremely rigid climates.
Alessandro Cannavale; Francesco Martellotta; Umberto Berardi; Chiara Rubino; Stefania Liuzzi; Vincenzo De Carlo; Ubaldo Ayr. Modeling of an Aerogel-Based “Thermal Break” for Super-Insulated Window Frames. Buildings 2020, 10, 60 .
AMA StyleAlessandro Cannavale, Francesco Martellotta, Umberto Berardi, Chiara Rubino, Stefania Liuzzi, Vincenzo De Carlo, Ubaldo Ayr. Modeling of an Aerogel-Based “Thermal Break” for Super-Insulated Window Frames. Buildings. 2020; 10 (3):60.
Chicago/Turabian StyleAlessandro Cannavale; Francesco Martellotta; Umberto Berardi; Chiara Rubino; Stefania Liuzzi; Vincenzo De Carlo; Ubaldo Ayr. 2020. "Modeling of an Aerogel-Based “Thermal Break” for Super-Insulated Window Frames." Buildings 10, no. 3: 60.
Being the interface between indoor and outdoor, building envelope significantly influences indoor heating and cooling loads and thus affects building energy consumption. This paper presents the results of numerical simulation for the performance prediction of building-integrated photovoltaic/thermal double-skin facade (BIPV/T-DSF). Different BIPV materials (amorphous silicon PV, dye-sensitized solar cell and Perovskite based solar cells) were considered as the exterior cladding of a North-facing facade of an office building located in Australia. The performance assessment involved the selection of three climates in Australia, represented by the cities of Darwin, Sydney and Canberra. The air cavity created between the outer skin and the inner one were alternatively assessed in the non-ventilated, naturally-ventilated and mechanically-ventilated modes of operation, while a full sensitivity analysis was performed in order to assess the influence of different design parameters, such as internal skin’s thermal transmittance, cavity depth, ventilation louvres’ opening ratio and cavity ventilation rate. By comparing the different operational modes and BIPV technologies, it was found that naturally-ventilated DSF integrating the Perovskite-based solar cell could be the optimal configuration achieving the highest savings. Total annual energy savings of 34.1%, 86% and 106% annual were reached respectively in Darwin, Sydney and Canberra, in comparison to conventional technologies. In addition, this façade technology could further reduce the building’s heating and cooling loads by harvesting thermal energy generated within the air cavity. The study finally demonstrated that the harvested electrical and thermal energy from the façade could cover a significant share of building’s energy consumption.
Siliang Yang; Alessandro Cannavale; Aldo Di Carlo; Deo Prasad; Alistair Sproul; Francesco Fiorito. Performance assessment of BIPV/T double-skin façade for various climate zones in Australia: Effects on energy consumption. Solar Energy 2020, 199, 377 -399.
AMA StyleSiliang Yang, Alessandro Cannavale, Aldo Di Carlo, Deo Prasad, Alistair Sproul, Francesco Fiorito. Performance assessment of BIPV/T double-skin façade for various climate zones in Australia: Effects on energy consumption. Solar Energy. 2020; 199 ():377-399.
Chicago/Turabian StyleSiliang Yang; Alessandro Cannavale; Aldo Di Carlo; Deo Prasad; Alistair Sproul; Francesco Fiorito. 2020. "Performance assessment of BIPV/T double-skin façade for various climate zones in Australia: Effects on energy consumption." Solar Energy 199, no. : 377-399.
One of the most important functions for windows is to connect the interior space to the outside, as well as having a role in ventilation and natural lighting. However, as it is considered the weakest link in the building envelope, in terms of thermal insulation, designers in the areas with severe climatic factors, tend to minimize the window ratio, without taking into account the importance of the other functions, in providing the user's comfort. This research aims to investigate the ability of electrochromic glazing to solve limited ratio problem and give designers more flexibility. A case study located in a hot and dry area was compared with several scenarios where electrochromic glazing was used in various ratios. Simulations were made using parametric design tools based on Rhinoceros and Grasshopper, which are among the most used software by designers. The study concluded that electrochromic glazing was useful in increasing the window-to-wall ratio and improving the building opening on the outside without having a negative impact on building energy performance.
Imene Lahmar; Noureddine Zemmouri; Alessandro Cannavale; Francesco Martellotta. Investigating the impact of electrochromic glazing on energy performance in hot arid climate using parametric design. IOP Conference Series: Materials Science and Engineering 2019, 609, 062027 .
AMA StyleImene Lahmar, Noureddine Zemmouri, Alessandro Cannavale, Francesco Martellotta. Investigating the impact of electrochromic glazing on energy performance in hot arid climate using parametric design. IOP Conference Series: Materials Science and Engineering. 2019; 609 (6):062027.
Chicago/Turabian StyleImene Lahmar; Noureddine Zemmouri; Alessandro Cannavale; Francesco Martellotta. 2019. "Investigating the impact of electrochromic glazing on energy performance in hot arid climate using parametric design." IOP Conference Series: Materials Science and Engineering 609, no. 6: 062027.
Innovative nanotechnology-based devices can offer multiple advantages in terms of renewable energy harvesting as well as energy saving in buildings. Among the technologies that can be used in transparent and semi-transparent building envelopes, neutral-colored perovskite-based heterojunction photovoltaic (PV) cells and solid-state electrochromic (EC) devices may play a pivotal role. These classes of devices have proven to offer significant benefits in terms of energy saving and enhancement of indoor visual comfort. In this work, the two types of technologies will be compared by considering two similar buildings equipped with glazing embodying such devices, with reference to specific climate conditions.
Alessandro Cannavale; Francesco Martellotta; Ubaldo Ayr. Energy performance of building-integrated electrochromic and photovoltaic systems. IOP Conference Series: Materials Science and Engineering 2019, 609, 062004 .
AMA StyleAlessandro Cannavale, Francesco Martellotta, Ubaldo Ayr. Energy performance of building-integrated electrochromic and photovoltaic systems. IOP Conference Series: Materials Science and Engineering. 2019; 609 (6):062004.
Chicago/Turabian StyleAlessandro Cannavale; Francesco Martellotta; Ubaldo Ayr. 2019. "Energy performance of building-integrated electrochromic and photovoltaic systems." IOP Conference Series: Materials Science and Engineering 609, no. 6: 062004.
Alessandro Cannavale; Francesco Martellotta; Valeria De Matteis; Ubaldo Ayr. Bio-compatible Core-shell Nanostructured PCMs for Thermal Comfort in Lightweight Constructions. Tecnica Italiana-Italian Journal of Engineering Science 2019, 63, 424 -430.
AMA StyleAlessandro Cannavale, Francesco Martellotta, Valeria De Matteis, Ubaldo Ayr. Bio-compatible Core-shell Nanostructured PCMs for Thermal Comfort in Lightweight Constructions. Tecnica Italiana-Italian Journal of Engineering Science. 2019; 63 (2-4):424-430.
Chicago/Turabian StyleAlessandro Cannavale; Francesco Martellotta; Valeria De Matteis; Ubaldo Ayr. 2019. "Bio-compatible Core-shell Nanostructured PCMs for Thermal Comfort in Lightweight Constructions." Tecnica Italiana-Italian Journal of Engineering Science 63, no. 2-4: 424-430.
Valeria De Matteis; Alessandro Cannavale; Francesco Martellotta; Rosaria Rinaldi; Paola Calcagnile; Francesca Ferrari; Ubaldo Ayr; Francesco Fiorito. Nano-encapsulation of phase change materials: From design to thermal performance, simulations and toxicological assessment. Energy and Buildings 2019, 188-189, 1 -11.
AMA StyleValeria De Matteis, Alessandro Cannavale, Francesco Martellotta, Rosaria Rinaldi, Paola Calcagnile, Francesca Ferrari, Ubaldo Ayr, Francesco Fiorito. Nano-encapsulation of phase change materials: From design to thermal performance, simulations and toxicological assessment. Energy and Buildings. 2019; 188-189 ():1-11.
Chicago/Turabian StyleValeria De Matteis; Alessandro Cannavale; Francesco Martellotta; Rosaria Rinaldi; Paola Calcagnile; Francesca Ferrari; Ubaldo Ayr; Francesco Fiorito. 2019. "Nano-encapsulation of phase change materials: From design to thermal performance, simulations and toxicological assessment." Energy and Buildings 188-189, no. : 1-11.
This chapter reports a critical and comprehensive review of current research trends aiming at the design of multifunctional architectural glazings. Challenges, opportunities, and technological evolutions are reported, with special reference to highly performing materials, like perovskites, novel architectures for photoelectrochromic devices (PECDs), and the overall effects of building integration on energy balance and visual comfort indoor, adopting a multidisciplinary approach. The main objective is, in fact, to envisage not only the energy output of innovative photovoltaic (PV) films, but also to assess the manifold implications of their building integration, with special regards to the multiple requirements to be addressed in the effective design of building components.
Alessandro Cannavale; Francesco Martellotta. Smart perovskite-based technologies for building integration:. Nanotechnology in Eco-Efficient Construction 2019, 441 -466.
AMA StyleAlessandro Cannavale, Francesco Martellotta. Smart perovskite-based technologies for building integration:. Nanotechnology in Eco-Efficient Construction. 2019; ():441-466.
Chicago/Turabian StyleAlessandro Cannavale; Francesco Martellotta. 2019. "Smart perovskite-based technologies for building integration:." Nanotechnology in Eco-Efficient Construction , no. : 441-466.
Maintaining indoor thermal comfort is crucial for the health and productivity of building occupants. Building envelope plays a major role in influencing the impact of outdoor climate and controlling the indoor thermal conditions. In this paper, comparative analysis of indoor comfortable temperature for four different types of building-integrated photovoltaic/thermal (BIPV/T) building models in a range of climate zones in Australia was conducted using TRNSYS simulation tool. In terms of system operational mode, the four types of BIPV/T building facade systems include a building-integrated photovoltaic single-skin facade (SSF), non-ventilated BIPV/T double-skin facade (BIPV/T-DSF), naturally ventilated BIPV/T-DSF and fan-assisted BIPV/T-DSF. In addition to the operational modes of the facade systems, two types of semi-transparent PV glazing with different visible light transmittance (VLT) were respectively applied to the models as external window glazing. The numerical results showed that the naturally ventilated BIPV/T-DSF with lower VLT (27%) PV glazing maintained a relatively better indoor temperature for the hot climatic conditions compared to the other operational modes, while the non-ventilated BIPV/T-DSF with higher VLT PV glazing (37.5%) offered more comfortable indoor temperature (i.e. 20 to 26 °C for office hours) for the cold climates in Australia. On the other hand, the naturally ventilated BIPV/T-DSF could basically maintain comfortable indoor temperatures from 22 to 27 °C during office hours without mechanical systems for the peak summer times for cool temperate climates in Australia. Moreover, it was found that the thermal insulation effect of semi-transparent PV glazing hardly affected indoor operative temperature in the ventilated modes of the BIPV/T-DSF. According to the sensitivity analysis, the change of U-value of internal window of the DSF would significantly lead to the change of indoor thermal comfort in both ventilated operational modes, but very few changes for the non-ventilated DSF. The variation of cavity depth had distinct impact on the indoor thermal comfort for fan-assisted DSF but slightly affected that of other modes. In addition, the changes of opening ratio for the ventilating louvers and fan airflow rate of the DSF also had a degree of influence on indoor thermal comfort for naturally ventilated DSF and fan-assisted DSF respectively.
Siliang Yang; Alessandro Cannavale; Deo Prasad; Alistair Sproul; Francesco Fiorito. Numerical simulation study of BIPV/T double-skin facade for various climate zones in Australia: Effects on indoor thermal comfort. Building Simulation 2018, 12, 51 -67.
AMA StyleSiliang Yang, Alessandro Cannavale, Deo Prasad, Alistair Sproul, Francesco Fiorito. Numerical simulation study of BIPV/T double-skin facade for various climate zones in Australia: Effects on indoor thermal comfort. Building Simulation. 2018; 12 (1):51-67.
Chicago/Turabian StyleSiliang Yang; Alessandro Cannavale; Deo Prasad; Alistair Sproul; Francesco Fiorito. 2018. "Numerical simulation study of BIPV/T double-skin facade for various climate zones in Australia: Effects on indoor thermal comfort." Building Simulation 12, no. 1: 51-67.
Adaptive facades, like electrochromic (EC) smart windows, represent the next generation of glazing with dynamic modulation of transparency, to suitably modulate the daylight and solar energy entering buildings. A study is reported, dealing with the manifold effects of building integration of an innovative solid-state EC device, assessing effects on the building energy balance and daylighting performance, in terms of Useful Daylight Illuminance (UDI) and Discomfort Glare Index (DGI). All the analyses were carried out using the experimental results, reporting the main figures of merit of EC devices as an input for building simulations, in the EnergyPlus software.
Alessandro Cannavale; Ubaldo Ayr; Francesco Martellotta. Innovative electrochromic devices: Energy savings and visual comfort effects. Energy Procedia 2018, 148, 900 -907.
AMA StyleAlessandro Cannavale, Ubaldo Ayr, Francesco Martellotta. Innovative electrochromic devices: Energy savings and visual comfort effects. Energy Procedia. 2018; 148 ():900-907.
Chicago/Turabian StyleAlessandro Cannavale; Ubaldo Ayr; Francesco Martellotta. 2018. "Innovative electrochromic devices: Energy savings and visual comfort effects." Energy Procedia 148, no. : 900-907.
A significant interest in sustainable sound absorbing materials is fostering many researches on the use of recycled and vegetable products, that normally would have been sent to wastes, as compounds to obtain new building materials. One key issue when preparing new composite materials is the choice of the binder, which, in many cases, may significantly reduce the sustainability of the product by introducing synthetic and plastic elements. In the present paper olive tree pruning wastes bounded with chitosan are investigated to obtain sound absorbing materials. Experimental results showed that absorption coefficients as high as 0.9 can be obtained above 1 kHz using a 50 mm sample, and that a very good agreement with the phenomenological model for sound absorption through a rigid frame is obtained, suggesting that the model can be conveniently used to further improve the sound absorption characteristics of the samples.
Francesco Martellotta; Alessandro Cannavale; Valeria De Matteis; Ubaldo Ayr. Sustainable sound absorbers obtained from olive pruning wastes and chitosan binder. Applied Acoustics 2018, 141, 71 -78.
AMA StyleFrancesco Martellotta, Alessandro Cannavale, Valeria De Matteis, Ubaldo Ayr. Sustainable sound absorbers obtained from olive pruning wastes and chitosan binder. Applied Acoustics. 2018; 141 ():71-78.
Chicago/Turabian StyleFrancesco Martellotta; Alessandro Cannavale; Valeria De Matteis; Ubaldo Ayr. 2018. "Sustainable sound absorbers obtained from olive pruning wastes and chitosan binder." Applied Acoustics 141, no. : 71-78.
Fully integrated electrochromic organic light emitting diode devices for building integration and smart lighting.
Pierluigi Cossari; Marco Pugliese; Salvatore Gambino; Alessandro Cannavale; Vincenzo Maiorano; Giuseppe Gigli; Marco Mazzeo. Fully integrated electrochromic-OLED devices for highly transparent smart glasses. Journal of Materials Chemistry C 2018, 6, 7274 -7284.
AMA StylePierluigi Cossari, Marco Pugliese, Salvatore Gambino, Alessandro Cannavale, Vincenzo Maiorano, Giuseppe Gigli, Marco Mazzeo. Fully integrated electrochromic-OLED devices for highly transparent smart glasses. Journal of Materials Chemistry C. 2018; 6 (27):7274-7284.
Chicago/Turabian StylePierluigi Cossari; Marco Pugliese; Salvatore Gambino; Alessandro Cannavale; Vincenzo Maiorano; Giuseppe Gigli; Marco Mazzeo. 2018. "Fully integrated electrochromic-OLED devices for highly transparent smart glasses." Journal of Materials Chemistry C 6, no. 27: 7274-7284.
The next generation of adaptive facades includes dynamic electrochromic (EC) windows: they can dynamically modulate the daylight and solar energy entering buildings by application of an external voltage. Windows play a pivotal role in the definition of the energy balance as well as environmental impacts of buildings. Emerging technologies are focused on the optimization of these building components. We carried out an interdisciplinary study dealing with building integration of an innovative chromogenic technology, consisting in a recently designed single substrate solid–state electrochromic device, developed by some of the authors, with excellent figures and a compact device architecture. The practical implications on the building energy balance were analyzed by means of suitable simulations, carried out in Energy Plus. A reference office building was equipped with different glass technologies on the façade (clear glass, solar control, electrochromic glasses) and located in different cities (Rome, London and Aswan) to also include climatic effects in the analysis. The EC technology here presented outperforms all the others, with overall yearly energy savings as high as 40 kW h/m2 yr (referred to window surface) in the hottest climates, assuming the clear glazings as benchmark. Daylighting performances were significantly improved using innovative solid-state EC devices, both in terms of Useful Daylight Illuminance (UDI) and Discomfort Glare Index (DGI). In the best case, 82.7% of hours achieved optimal illuminance conditions on an annual basis.
Alessandro Cannavale; Francesco Martellotta; Pierluigi Cossari; Giuseppe Gigli; Ubaldo Ayr. Energy savings due to building integration of innovative solid-state electrochromic devices. Applied Energy 2018, 225, 975 -985.
AMA StyleAlessandro Cannavale, Francesco Martellotta, Pierluigi Cossari, Giuseppe Gigli, Ubaldo Ayr. Energy savings due to building integration of innovative solid-state electrochromic devices. Applied Energy. 2018; 225 ():975-985.
Chicago/Turabian StyleAlessandro Cannavale; Francesco Martellotta; Pierluigi Cossari; Giuseppe Gigli; Ubaldo Ayr. 2018. "Energy savings due to building integration of innovative solid-state electrochromic devices." Applied Energy 225, no. : 975-985.