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Climate change (CC) is predominantly connected to greenhouse gas (GHG) emissions from the construction sector. It is clear how it is necessary to rethink construction materials in order to reduce GHG emissions. Among the various strategies proposed, recent research has investigated the potential of smart materials. This study in particular aims to develop an innovative building component that combines high energy performance with reduced thickness and weight. For this reason, the potential of Phase Change Materials (PCM) in cement-based mixes is investigated, comparing the performance of a traditional mix with two innovative mixes made with the addition of 3% and 7% PCM. This work characterizes the new material, analyzing its mechanical and thermal performance, highlighting how the mix strength decreases as the PCM ratio increases; however, both mixes may be considered suitable for masonry structures and may be classified as M5 and M15. Furthermore, from the analysis of the thermal performance, it emerges that the mix presents good behavior in terms of insulating properties.
Federico Orsini; Paola Marrone; Silvia Santini; Lorena Sguerri; Francesco Asdrubali; Giorgio Baldinelli; Francesco Bianchi; Andrea Presciutti. Smart Materials: Cementitious Mortars and PCM Mechanical and Thermal Characterization. Materials 2021, 14, 4163 .
AMA StyleFederico Orsini, Paola Marrone, Silvia Santini, Lorena Sguerri, Francesco Asdrubali, Giorgio Baldinelli, Francesco Bianchi, Andrea Presciutti. Smart Materials: Cementitious Mortars and PCM Mechanical and Thermal Characterization. Materials. 2021; 14 (15):4163.
Chicago/Turabian StyleFederico Orsini; Paola Marrone; Silvia Santini; Lorena Sguerri; Francesco Asdrubali; Giorgio Baldinelli; Francesco Bianchi; Andrea Presciutti. 2021. "Smart Materials: Cementitious Mortars and PCM Mechanical and Thermal Characterization." Materials 14, no. 15: 4163.
The construction sector is one of the most energy-intensive in the industrialized countries. In order to limit climate change emissions throughout the entire life cycle of a building, in addition to reducing energy consumption in the operational phase, attention should also be paid to the embodied energy and CO2 emissions of the building itself. The purpose of this work is to review data on embodied energy and GWP derived from EPDs of different types of windows, to identify the LCA phases, the most impacting materials and processes from an environmental point of view and to perform a critical analysis of the outcomes. The results show a strong dependence on the typology of the frame, with wooden windows having competitive performances: lower average primary energy non-renewable (1123 MJ/FU), higher average primary energy renewable (respectively 817 MJ/FU) and lower global warming potential (54 kgCO2eq/FU). More transparency and standardization in the information conveyed by the program operators is, however, desirable for a better comparability of windows performances. In particular, the inclusion of the operational impact in the EPD is sporadic, but strongly important, since it can be the most impactful phase.
Francesco Asdrubali; Marta Roncone; Gianluca Grazieschi. Embodied Energy and Embodied GWP of Windows: A Critical Review. Energies 2021, 14, 3788 .
AMA StyleFrancesco Asdrubali, Marta Roncone, Gianluca Grazieschi. Embodied Energy and Embodied GWP of Windows: A Critical Review. Energies. 2021; 14 (13):3788.
Chicago/Turabian StyleFrancesco Asdrubali; Marta Roncone; Gianluca Grazieschi. 2021. "Embodied Energy and Embodied GWP of Windows: A Critical Review." Energies 14, no. 13: 3788.
In this paper, a procedure for the detection of the sources of industrial noise and the evaluation of their distances is introduced. The above method is based on the analysis of acoustic and optical data recorded by an acoustic camera. In order to improve the resolution of the data, interpolation and quasi interpolation algorithms for digital data processing have been used, such as the bilinear, bicubic, and sampling Kantorovich (SK). The experimental tests show that the SK algorithm allows to perform the above task more accurately than the other considered methods.
Francesco Asdrubali; Giorgio Baldinelli; Francesco Bianchi; Danilo Costarelli; Francesco D'Alessandro; Flavio Scrucca; Marco Seracini; Gianluca Vinti. Mathematical models for the improvement of detection techniques of industrial noise sources from acoustic images. Mathematical Methods in the Applied Sciences 2021, 44, 10448 -10459.
AMA StyleFrancesco Asdrubali, Giorgio Baldinelli, Francesco Bianchi, Danilo Costarelli, Francesco D'Alessandro, Flavio Scrucca, Marco Seracini, Gianluca Vinti. Mathematical models for the improvement of detection techniques of industrial noise sources from acoustic images. Mathematical Methods in the Applied Sciences. 2021; 44 (13):10448-10459.
Chicago/Turabian StyleFrancesco Asdrubali; Giorgio Baldinelli; Francesco Bianchi; Danilo Costarelli; Francesco D'Alessandro; Flavio Scrucca; Marco Seracini; Gianluca Vinti. 2021. "Mathematical models for the improvement of detection techniques of industrial noise sources from acoustic images." Mathematical Methods in the Applied Sciences 44, no. 13: 10448-10459.
Among the super insulating materials, aerogel has interesting properties: very low thermal conductivity and density, resistance to high temperatures and transparency. It is a rather expensive material, but incentives in the field can improve its economic attractiveness. Starting from this, the thermal behavior of a test building entirely insulated with aerogel panels was investigated through an extended experimental campaign. A dynamic simulation model of a case study building was generated to better comprehend the energy savings obtained through aerogel in terms of energy demand over a whole year. The investigation was completed by computing the carbon and energy payback times of various retrofit strategies through a life cycle assessment approach, as well as by a cost-benefit analysis through a probabilistic financial framework. Compared to conventional insulation materials, aerogel is characterized by a higher energy and carbon payback time, but it guarantees better environmental performance in the whole life cycle. From an economic-financial perspective, the aerogel retrofit is the best in the current tax incentive scenario. However, due to its higher lump-sum investment, aerogel’s net present value is very sensitive to tax deductions, and it is riskier than the best comparable materials in less favorable tax scenarios.
Paola Marrone; Francesco Asdrubali; Daniela Venanzi; Federico Orsini; Luca Evangelisti; Claudia Guattari; Roberto De Lieto Vollaro; Lucia Fontana; Gianluca Grazieschi; Paolo Matteucci; Marta Roncone. On the Retrofit of Existing Buildings with Aerogel Panels: Energy, Environmental and Economic Issues. Energies 2021, 14, 1276 .
AMA StylePaola Marrone, Francesco Asdrubali, Daniela Venanzi, Federico Orsini, Luca Evangelisti, Claudia Guattari, Roberto De Lieto Vollaro, Lucia Fontana, Gianluca Grazieschi, Paolo Matteucci, Marta Roncone. On the Retrofit of Existing Buildings with Aerogel Panels: Energy, Environmental and Economic Issues. Energies. 2021; 14 (5):1276.
Chicago/Turabian StylePaola Marrone; Francesco Asdrubali; Daniela Venanzi; Federico Orsini; Luca Evangelisti; Claudia Guattari; Roberto De Lieto Vollaro; Lucia Fontana; Gianluca Grazieschi; Paolo Matteucci; Marta Roncone. 2021. "On the Retrofit of Existing Buildings with Aerogel Panels: Energy, Environmental and Economic Issues." Energies 14, no. 5: 1276.
The majority of Italian schools (70%) were built in the absence of any legislation related to energy efficiency, and therefore have very low energy performance due to aging or poor quality of construction. An energy retrofit of this building stock is needed to meet the current European goals on greenhouse gas emission reduction. The retrofit is also needed in order to guarantee adequate comfort levels in indoor spaces and good conditions for learning and educational activities, that are often not reached in poor quality constructions. This work presents the results of an interdisciplinary study related to the energy requalification of a school located in Ostia, near Rome in Italy, built in the 1960s with a steel structure and Eternit infill. The scope of the analysis is to verify the economic and environmental effectiveness of four proposed retrofit interventions concerning the replacement of fixtures and the installation of an insulating coat. The current thermal transmittance of the walls was evaluated through thermofluximetric measurements conducted in situ; dynamic simulations were performed to determine the current energy performance and the energy performances following the four proposed retrofit scenarios. Energy and carbon payback times were evaluated (by means of the life cycle analysis (LCA) approach) and the economic value was determined for each of the four proposed retrofits, using a probabilistic approach. The results show that the replacement of windows is the most convenient intervention from all points of view. The study provides evidence that an assessment of schools’ energy retrofits should include both economic and life cycle aspects.
Francesco Asdrubali; Daniela Venanzi; Luca Evangelisti; Claudia Guattari; Gianluca Grazieschi; Paolo Matteucci; Marta Roncone. An Evaluation of the Environmental Payback Times and Economic Convenience in an Energy Requalification of a School. Buildings 2020, 11, 12 .
AMA StyleFrancesco Asdrubali, Daniela Venanzi, Luca Evangelisti, Claudia Guattari, Gianluca Grazieschi, Paolo Matteucci, Marta Roncone. An Evaluation of the Environmental Payback Times and Economic Convenience in an Energy Requalification of a School. Buildings. 2020; 11 (1):12.
Chicago/Turabian StyleFrancesco Asdrubali; Daniela Venanzi; Luca Evangelisti; Claudia Guattari; Gianluca Grazieschi; Paolo Matteucci; Marta Roncone. 2020. "An Evaluation of the Environmental Payback Times and Economic Convenience in an Energy Requalification of a School." Buildings 11, no. 1: 12.
Life Cycle Analysis applications in the construction sector are growing due to the increased importance of embodied components in low energy buildings. In this study, standard building reference scenarios were compared with highly efficient building typologies, classified as low-energy or nearly Zero Energy Buildings. Energy consumptions were simulated starting from validated models while uniform assumptions, such as materials to be included, stages to be considered and coefficients of impact to be applied, were made for the LCA. The results show how the enhanced energy efficiency in the examined buildings and the reduction of their operational non-renewable primary energy requirement correspondingly causes a decrease of their life cycle non-renewable energy requirement, Cumulative Energy Demand and Global Warming Potential. A high potential in the reduction of non-renewable operational primary energy and GWP was found (until a maximum of 89% for the energy and 88% for the emissions). However, due to the shifting of impacts to the embodied components, the achievable life cycle reduction of non-renewable primary energy and emissions is lower (respectively 60% and 63% for the best performing retrofit). The benefit on life cycle CED is even lower due to the energy transition to renewables.
F. Asdrubali; G. Grazieschi. Life cycle assessment of energy efficient buildings. Energy Reports 2020, 6, 270 -285.
AMA StyleF. Asdrubali, G. Grazieschi. Life cycle assessment of energy efficient buildings. Energy Reports. 2020; 6 ():270-285.
Chicago/Turabian StyleF. Asdrubali; G. Grazieschi. 2020. "Life cycle assessment of energy efficient buildings." Energy Reports 6, no. : 270-285.
Green roofs have a thermal insulating effect known since ancient times. In the building sector, green roofs represent a sustainable passive solution to obtain energy savings, both during winter and summer. Moreover, they are a natural barrier against noise pollution, reducing sound reflections, and they contribute to clean air and biodiversity in urban areas. In this research, a roof-lawn system was studied through a long experimental campaign. Heat-flow meters, air and surface temperature sensors were used in two buildings characterized by different surrounding conditions, geometries and orientations. In both case studies, the thermal behaviors of the roof-lawn system were compared with the conventional roofs. In addition, a dynamic simulation model was created in order to quantify the effect of this green system on the heating and cooling energy demands. The roof-lawn showed a high thermal inertia, with no overheating during summer, and a high insulating capacity, involving energy savings during winter, and consequently better indoor thermal conditions.
Luca Evangelisti; Claudia Guattari; Gianluca Grazieschi; Marta Roncone; Francesco Asdrubali. On the Energy Performance of an Innovative Green Roof in the Mediterranean Climate. Energies 2020, 13, 5163 .
AMA StyleLuca Evangelisti, Claudia Guattari, Gianluca Grazieschi, Marta Roncone, Francesco Asdrubali. On the Energy Performance of an Innovative Green Roof in the Mediterranean Climate. Energies. 2020; 13 (19):5163.
Chicago/Turabian StyleLuca Evangelisti; Claudia Guattari; Gianluca Grazieschi; Marta Roncone; Francesco Asdrubali. 2020. "On the Energy Performance of an Innovative Green Roof in the Mediterranean Climate." Energies 13, no. 19: 5163.
The urban heat island (UHI) phenomenon is strictly related to climate changes and urban development. During summer, in urban areas, the lack of green zones and water sources causes local overheating, with discomfort and negative effects on buildings’ energy performance. Starting from this, an experimental and numerical investigating of the climatic conditions in a university area in Rome was achieved, also assessing the occurrence of the UHI phenomenon. The analyzed area was recently renewed, with solutions in contrast to each other: on one side, an old building was re-designed aiming at high performance; on the other hand, the neighboring areas were also refurbished leading to large paved surfaces, characterized by high temperatures during summer. A calibrated numerical model was generated through ENVI-met software and eight different scenarios were compared, to mitigate the overheating of this area and to analyze the influences of the proposed solutions in terms of air temperature reduction. The analysis of this case study provides information on potential mitigation solutions in the urban environment, showing that goals and priorities in the design phase should concern not only buildings but also external areas, also considering university areas.
Gabriele Battista; Luca Evangelisti; Claudia Guattari; Emanuele De Lieto Vollaro; Roberto De Lieto Vollaro; Francesco Asdrubali. Urban Heat Island Mitigation Strategies: Experimental and Numerical Analysis of a University Campus in Rome (Italy). Sustainability 2020, 12, 7971 .
AMA StyleGabriele Battista, Luca Evangelisti, Claudia Guattari, Emanuele De Lieto Vollaro, Roberto De Lieto Vollaro, Francesco Asdrubali. Urban Heat Island Mitigation Strategies: Experimental and Numerical Analysis of a University Campus in Rome (Italy). Sustainability. 2020; 12 (19):7971.
Chicago/Turabian StyleGabriele Battista; Luca Evangelisti; Claudia Guattari; Emanuele De Lieto Vollaro; Roberto De Lieto Vollaro; Francesco Asdrubali. 2020. "Urban Heat Island Mitigation Strategies: Experimental and Numerical Analysis of a University Campus in Rome (Italy)." Sustainability 12, no. 19: 7971.
This paper introduces a review on sustainability-related concepts at a neighbourhood scale. 3909 abstracts of papers on “neighbourhood sustainability” published between the late eighties and February 2020 were downloaded from Scopus in order to perform a text mining analysis. The concept of neighbourhood sustainability is studied and discussed at both geographical and temporal level, employing clustering methods. Marked differences in the elaboration of neighbourhood sustainability-related concepts can be tracked at spatial level and linked to the different socioeconomic, cultural and climatic conditions of the considered geographic areas. A significant temporal evolution of the concept can be also tracked with a focus on specific aspects of the sustainability concept in different periods of time. The analysis can help in defining more rigorous evaluation categories and criteria for neighbourhoods sustainability rating systems: new criteria should be included and an international homogenization is recommended in the definition of a common scheme of macro-categories, as well as local versions of the tools. Finally, the adoption of a dynamic approach, that doesn’t stop after the projects realization, is proposed for the evaluation of the sustainability at a neighbourhood scale.
Gianluca Grazieschi; Francesco Asdrubali; Claudia Guattari. Neighbourhood sustainability: State of the art, critical review and space-temporal analysis. Sustainable Cities and Society 2020, 63, 102477 .
AMA StyleGianluca Grazieschi, Francesco Asdrubali, Claudia Guattari. Neighbourhood sustainability: State of the art, critical review and space-temporal analysis. Sustainable Cities and Society. 2020; 63 ():102477.
Chicago/Turabian StyleGianluca Grazieschi; Francesco Asdrubali; Claudia Guattari. 2020. "Neighbourhood sustainability: State of the art, critical review and space-temporal analysis." Sustainable Cities and Society 63, no. : 102477.
The research presented in this paper is focused on the definition of a new methodology for evaluating how illuminated crosswalks influence drivers’ behavior when approaching the zebra in nighttime conditions. The proposed methodology is based on in situ speed measurements, and cars’ speed was detected in an urban road segment of the city of Rome with a Telelaser instrument. Vehicles speed profiles are measured in the same road segment both in LED-illuminated conditions and in non-illuminated conditions. Results have shown a promising impact of the LED lighting system on pedestrian safety. In fact, cars’ mean speed decreases by 19.3% at the crosswalk section in illuminated conditions. Moreover, a positive effect on safety, in terms of mean speed reduction (−16.4%), was found even in the absence of pedestrians.
Sergio Maria Patella; Simone Sportiello; Stefano Carrese; Francesco Bella; Francesco Asdrubali. The Effect of a LED Lighting Crosswalk on Pedestrian Safety: Some Experimental Results. Safety 2020, 6, 20 .
AMA StyleSergio Maria Patella, Simone Sportiello, Stefano Carrese, Francesco Bella, Francesco Asdrubali. The Effect of a LED Lighting Crosswalk on Pedestrian Safety: Some Experimental Results. Safety. 2020; 6 (2):20.
Chicago/Turabian StyleSergio Maria Patella; Simone Sportiello; Stefano Carrese; Francesco Bella; Francesco Asdrubali. 2020. "The Effect of a LED Lighting Crosswalk on Pedestrian Safety: Some Experimental Results." Safety 6, no. 2: 20.
Building performance is strongly influenced by the performance of their structural parts, consequently affecting annual energy demands. The thermal characterization of building components can be achieved thanks to the knowledge of their internal layers and the thermal properties of each material. Considering existing buildings, technical data may be unidentified and heat transfer phenomena between walls and environments can be influenced by air-conditioning systems and local thermo-fluid dynamic conditions. Moreover, the conversion of an existing building into a Nearly Zero Energy Building (NZEB) requires accurate measurements and simulations compared with Standards suggestions, based on simplified procedures. Therefore, on-site surveys become fundamental. Standards suggestions can help engineers or technicians to define some unknown information related to heat transfer coefficients and thermo-physical properties. Nevertheless, can Standards' suggestions be considered reliable in every situation? This paper tries to answer this question, debating some investigations conducted in the last years and proposing a methodological approach.
Luca Evangelisti; Claudia Guattari; Francesco Asdrubali; Roberto De Lieto Vollaro. In situ thermal characterization of existing buildings aiming at NZEB standard: A methodological approach. Developments in the Built Environment 2020, 2, 100008 .
AMA StyleLuca Evangelisti, Claudia Guattari, Francesco Asdrubali, Roberto De Lieto Vollaro. In situ thermal characterization of existing buildings aiming at NZEB standard: A methodological approach. Developments in the Built Environment. 2020; 2 ():100008.
Chicago/Turabian StyleLuca Evangelisti; Claudia Guattari; Francesco Asdrubali; Roberto De Lieto Vollaro. 2020. "In situ thermal characterization of existing buildings aiming at NZEB standard: A methodological approach." Developments in the Built Environment 2, no. : 100008.
In the building sector, both passive and active systems are essential for achieving a high-energy performance. Considering passive solutions, green roofs represent a sustainable answer, allowing buildings to reach energy savings, and also reducing the collateral effect of the Urban Heat Island (UHI) phenomenon. In this study, a roof-lawn system was investigated by means of an extended measurement campaign, monitoring the heat transfer across the roof. Heat-flow meters and air- and surface-temperature probes were applied in a real building, in order to compare the performance of the roof-lawn system with a conventional roof. This experimental approach was followed to quantify the different thermal behaviors of the building components. Moreover, an equivalent thermal model of the roof-lawn system was studied, in order to obtain the equivalent thermal properties of the roof, useful for setting building models for yearly energy simulations. The roof-lawn system revealed its advantages, showing a higher thermal inertia with no overheating in summertime and a lower thermal transmittance with energy savings in wintertime, and, consequently, better indoor conditions for the occupants of the building.
Claudia Guattari; Luca Evangelisti; Francesco Asdrubali; Roberto De Lieto Vollaro. Experimental Evaluation and Numerical Simulation of the Thermal Performance of a Green Roof. Applied Sciences 2020, 10, 1767 .
AMA StyleClaudia Guattari, Luca Evangelisti, Francesco Asdrubali, Roberto De Lieto Vollaro. Experimental Evaluation and Numerical Simulation of the Thermal Performance of a Green Roof. Applied Sciences. 2020; 10 (5):1767.
Chicago/Turabian StyleClaudia Guattari; Luca Evangelisti; Francesco Asdrubali; Roberto De Lieto Vollaro. 2020. "Experimental Evaluation and Numerical Simulation of the Thermal Performance of a Green Roof." Applied Sciences 10, no. 5: 1767.
This work aims at investigating the existence of an optimal solution from the life cycle energy point of view of an autonomous building. The life cycle energy demand of a building can be divided into three parts: the operational energy, the embodied energy and the end-of-life one. The introduction of renewable energy resources generally causes a shift of the energy demand from the operational phase to the embodied and end-of-life ones. The study aims at demonstrating that, in autonomous buildings, the relationship between total life cycle energy demand and operational energy demand is characterized by an optimal level that minimizes the overall life cycle energy demand of the construction. An autonomous building, representative of the Italian context, was chosen as a case study and, analysing different design configurations, it was observed that the low energy design solution performed better than the net zero energy building from a life cycle energy perspective.
Gianluca Grazieschi; Paola Gori; Lidia Lombardi; Francesco Asdrubali. Life cycle energy minimization of autonomous buildings. Journal of Building Engineering 2020, 30, 101229 .
AMA StyleGianluca Grazieschi, Paola Gori, Lidia Lombardi, Francesco Asdrubali. Life cycle energy minimization of autonomous buildings. Journal of Building Engineering. 2020; 30 ():101229.
Chicago/Turabian StyleGianluca Grazieschi; Paola Gori; Lidia Lombardi; Francesco Asdrubali. 2020. "Life cycle energy minimization of autonomous buildings." Journal of Building Engineering 30, no. : 101229.
Understanding the thermal performance of building envelopes and of their components is a critical issue under energy saving and sustainability points of view. High performance buildings are commonly characterized by passive solutions able to avoid overheating during summertime or to take advantage of solar radiation during wintertime. This study provides an experimental investigation of the thermal performance of a refurbished building which was re-designed aiming at high performance from both an active and passive point of view. The building envelope was investigated, examining the influence of the external shading devices by means of in-situ measurements and introducing an index for the evaluation of the shielding system efficiency. The index was tested by means of numerical simulations and measured data, providing information about the efficiency of the solar shading device in terms of glazing external surface temperature reduction. It was found that the shielding system allows to achieve a reduction in terms of incoming thermal energy equal to 38.7% during summertime. The index could be used both for opaque and transparent building components covered by a shading device, independently by the shape of the shading system or by the thermal performance of the component. The index could be therefore useful for both solar shading devices producers and for practitioners for preliminary design evaluations.
Luca Evangelisti; Claudia Guattari; Francesco Asdrubali; Roberto De Lieto Vollaro. An experimental investigation of the thermal performance of a building solar shading device. Journal of Building Engineering 2019, 28, 101089 .
AMA StyleLuca Evangelisti, Claudia Guattari, Francesco Asdrubali, Roberto De Lieto Vollaro. An experimental investigation of the thermal performance of a building solar shading device. Journal of Building Engineering. 2019; 28 ():101089.
Chicago/Turabian StyleLuca Evangelisti; Claudia Guattari; Francesco Asdrubali; Roberto De Lieto Vollaro. 2019. "An experimental investigation of the thermal performance of a building solar shading device." Journal of Building Engineering 28, no. : 101089.
Most of the developed countries are struggling to reduce carbon emissions into the atmosphere to meet the international agreements. One of the strategies to reduce climate change impacts is the decarbonisation of the electricity production: generation mixes are more and more based on renewable energy sources that are replacing the traditional fossil fuels. The effect of the electricity decarbonisation production reflects in the life cycle impacts of buildings, particularly if they are strongly dependent on the electrical energy as the main energy vector. The traditional Life Cycle Assessment (LCA) cannot capture the effect of lowering emission factors for electricity generation since only static values are considered. Moreover, also the grid-building interaction should be properly taken into account in the life cycle assessment of buildings using dynamic calculations. A dynamic life cycle analysis is the methodology that can overcome these limitations through the introduction of dynamic parameters within the life cycle inventory and in the life cycle impact assessment stages. A Dynamic Life Cycle Assessment (DLCA) is proposed in order to evaluate the consequences of electricity decarbonisation on the LCA of an “all electric” Nearly Zero Energy Building (NZEB). A comparison with literature results about similar constructions is finally provided.
F. Asdrubali; Paolo Baggio; A. Prada; Gianluca Grazieschi; C. Guattari. Dynamic life cycle assessment modelling of a NZEB building. Energy 2019, 191, 116489 .
AMA StyleF. Asdrubali, Paolo Baggio, A. Prada, Gianluca Grazieschi, C. Guattari. Dynamic life cycle assessment modelling of a NZEB building. Energy. 2019; 191 ():116489.
Chicago/Turabian StyleF. Asdrubali; Paolo Baggio; A. Prada; Gianluca Grazieschi; C. Guattari. 2019. "Dynamic life cycle assessment modelling of a NZEB building." Energy 191, no. : 116489.
Building energy performance has a key role in the international energy scenario. Labelling procedures have been developed in several countries for certifying the environmental sustainability of buildings, aiming at reducing energy consumptions and environmental impacts. In this study, the impacts of the insulating materials on the energy and environmental performance of a residential building have been analysed. From previous studies developed by the same authors, it emerged that the sustainability protocols LEED and ITACA take into account the thermal properties of the insulating materials but their impact on the environment is not adequately considered. Starting from these considerations, in this work a life cycle analysis was carried out on the four insulating materials in order to highlight if and to what extent they differ in terms of environmental impacts. What emerged from the results is that the balance between nature, origin and amount of input materials strongly influences the results and the natural materials are not always the most sustainable and eco-compatible.
Benedetta Mattoni; Fabio Bisegna; Luca Evangelisti; Claudia Guattari; Francesco Asdrubali. Influence of LCA procedure on the green building rating tools outcomes. IOP Conference Series: Materials Science and Engineering 2019, 609, 072044 .
AMA StyleBenedetta Mattoni, Fabio Bisegna, Luca Evangelisti, Claudia Guattari, Francesco Asdrubali. Influence of LCA procedure on the green building rating tools outcomes. IOP Conference Series: Materials Science and Engineering. 2019; 609 (7):072044.
Chicago/Turabian StyleBenedetta Mattoni; Fabio Bisegna; Luca Evangelisti; Claudia Guattari; Francesco Asdrubali. 2019. "Influence of LCA procedure on the green building rating tools outcomes." IOP Conference Series: Materials Science and Engineering 609, no. 7: 072044.
Zero Energy Buildings (ZEBs) and nearly Zero Energy Buildings (nZEBs) can be designed from scratch or they can be obtained after deep refurbishments of existing constructions. Both passive and active strategies are fundamental to achieve the ZEB or nZEB target. According to this, among passive systems, green roofs can be a viable solution because they allow to achieve energy savings, also reducing the urban heat island phenomenon. In this research, an innovative roof-lawn system was preliminary analyzed by installing several measurement instruments for obtaining information about thermal heat exchanges. Heat-flow meters, surface temperature and air temperature probes were installed, comparing the performance of the roof-lawn system with a nearby simple old roof, in order to quantify the two different behaviors from a thermal point of view. The roof-lawn system revealed its advantages, showing a higher thermal inertia with no overheating and a lower thermal transmittance, as well as better indoor conditions for the occupants of the building. The study is the first step of a path which aims to design a more complex and complete system, also considering the structural part of the roof.
Francesco Asdrubali; Luca Evangelisti; Claudia Guattari. Green roof for zero energy buildings: a pilot project. IOP Conference Series: Materials Science and Engineering 2019, 609, 072011 .
AMA StyleFrancesco Asdrubali, Luca Evangelisti, Claudia Guattari. Green roof for zero energy buildings: a pilot project. IOP Conference Series: Materials Science and Engineering. 2019; 609 (7):072011.
Chicago/Turabian StyleFrancesco Asdrubali; Luca Evangelisti; Claudia Guattari. 2019. "Green roof for zero energy buildings: a pilot project." IOP Conference Series: Materials Science and Engineering 609, no. 7: 072011.
Luca Evangelisti; Roberto De Lieto Vollaro; Francesco Asdrubali. Latest advances on solar thermal collectors: A comprehensive review. Renewable and Sustainable Energy Reviews 2019, 114, 1 .
AMA StyleLuca Evangelisti, Roberto De Lieto Vollaro, Francesco Asdrubali. Latest advances on solar thermal collectors: A comprehensive review. Renewable and Sustainable Energy Reviews. 2019; 114 ():1.
Chicago/Turabian StyleLuca Evangelisti; Roberto De Lieto Vollaro; Francesco Asdrubali. 2019. "Latest advances on solar thermal collectors: A comprehensive review." Renewable and Sustainable Energy Reviews 114, no. : 1.
Walls thermal characterization is fundamental for the evaluation of the energy performance of buildings and for the energy certification practice and simulations. The evaluation of the thermal characteristics of building walls can be achieved through mathematical calculations (when the stratigraphy is known, and technical data are available) or non-destructive techniques (when wall layers are unknown, and they cannot be altered). Starting from this, the aim of this study is a critical analysis of the basic principles related to heat-flow meter (HFM) and Air-Surface Temperature Ratio (ASTR) methods. In particular, the heat flow meter method was tested during summer, comparing the obtained results with a previous measurement campaign, conducted in the same university lab during winter, and theoretical value; then the heat-flow meter method was compared with the Air-Surface Temperature Ratio technique, considering the indoor air temperature vertical profile. The influence of the constant total internal heat transfer coefficient (hi) suggested by ISO 6946 (generally used) was investigated, providing a simple data elaboration for assessing the actual total heat transfer coefficient. In addition, the influence of the reciprocal positions of the temperature probes on final results was analyzed, finding significant deviations. Comparing the hi constant value suggested by the standard and the ones obtained experimentally, percentage differences, ranging from about 40% to about 143%, were obtained.
L. Evangelisti; C. Guattari; Francesco Asdrubali. Comparison between heat-flow meter and Air-Surface Temperature Ratio techniques for assembled panels thermal characterization. Energy and Buildings 2019, 203, 109441 .
AMA StyleL. Evangelisti, C. Guattari, Francesco Asdrubali. Comparison between heat-flow meter and Air-Surface Temperature Ratio techniques for assembled panels thermal characterization. Energy and Buildings. 2019; 203 ():109441.
Chicago/Turabian StyleL. Evangelisti; C. Guattari; Francesco Asdrubali. 2019. "Comparison between heat-flow meter and Air-Surface Temperature Ratio techniques for assembled panels thermal characterization." Energy and Buildings 203, no. : 109441.
S.M. Patella; Flavio Scrucca; Francesco Asdrubali; Stefano Carrese. Carbon Footprint of autonomous vehicles at the urban mobility system level: A traffic simulation-based approach. Transportation Research Part D: Transport and Environment 2019, 74, 189 -200.
AMA StyleS.M. Patella, Flavio Scrucca, Francesco Asdrubali, Stefano Carrese. Carbon Footprint of autonomous vehicles at the urban mobility system level: A traffic simulation-based approach. Transportation Research Part D: Transport and Environment. 2019; 74 ():189-200.
Chicago/Turabian StyleS.M. Patella; Flavio Scrucca; Francesco Asdrubali; Stefano Carrese. 2019. "Carbon Footprint of autonomous vehicles at the urban mobility system level: A traffic simulation-based approach." Transportation Research Part D: Transport and Environment 74, no. : 189-200.