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Recent earthquakes have highlighted a general inadequacy of the existing building stock in Italy and the need to address this critical issue by increasing its structural resilience. At the same time, the problem of energy consumption in existing residential and commercial buildings is increasingly significant and incompatible with the environmental targets set by governments. Considering all the aforementioned aspects, the seismic upgrading of existing buildings, based on the use of an eco-friendly and sustainable technology, has become more and more relevant and different intervention approaches have been developed. This paper aims to provide a multidisciplinary approach for the performance assessment of an eco-friendly and sustainable RC-framed skin for integrated refurbishment of existing buildings. A preliminary description of such skin technology is provided with particular attention to the simultaneous improvement of structural (e.g., seismic) and non-structural (e.g., energy, acoustic) performances and to issues concerning the limitation of invasiveness and interruption of use of the building. Technological details and in situ installation phases are described with special regard to connection and interaction with the existing building. Procedures for the assessment of upgraded building performances, in terms of seismic capacity and thermo-hygrometric and acoustic performances, are defined and applied to a selected basic cell structure. The feasibility and sustainability of the proposed upgrading intervention is finally investigated by means of a holistic Life Cycle Assessment for environmental impact and Life Cycle Cost for an economic evaluation. Finally, results from a multidisciplinary performance assessment are critically discussed by relating the performance aspects to the technological and installation issues.
Luca Pozza; Anna Degli Esposti; Alessandra Bonoli; Diego Talledo; Luca Barbaresi; Giovanni Semprini; Marco Savoia. Multidisciplinary Performance Assessment of an Eco-Sustainable RC-Framed Skin for the Integrated Upgrading of Existing Buildings. Sustainability 2021, 13, 9225 .
AMA StyleLuca Pozza, Anna Degli Esposti, Alessandra Bonoli, Diego Talledo, Luca Barbaresi, Giovanni Semprini, Marco Savoia. Multidisciplinary Performance Assessment of an Eco-Sustainable RC-Framed Skin for the Integrated Upgrading of Existing Buildings. Sustainability. 2021; 13 (16):9225.
Chicago/Turabian StyleLuca Pozza; Anna Degli Esposti; Alessandra Bonoli; Diego Talledo; Luca Barbaresi; Giovanni Semprini; Marco Savoia. 2021. "Multidisciplinary Performance Assessment of an Eco-Sustainable RC-Framed Skin for the Integrated Upgrading of Existing Buildings." Sustainability 13, no. 16: 9225.
Heat recovery ventilation (HRV) systems can be integrated with an additional air heater in buildings with low energy demand in order to cover space heating demand. The employment of coupled HRV-heater systems is, therefore, gaining increasing interest for the improvement of the indoor environmental quality (IEQ), as well as the reduction of ventilation energy loss. The present paper analyses the efficacy of a HRV system, coupled with a low-temperature radiator, in satisfying the IEQ indices inside a retrofitted dormitory room. A computational fluid dynamic (CFD) model based on the finite volume method is established to investigate IEQ characteristics including indoor air quality and thermal comfort condition. The presented CFD code provides a practical tool for a comprehensive investigation of the IEQ indices in spaces employing a coupled HVAC system. In an analysis of indoor air quality, parameters such as age of the air, air change efficiency, and ventilation efficiency in removal of gaseous contaminants, namely VOCs and CO2, are evaluated. The results obtained by the numerical model allow addressing the interaction between HRV and radiator systems and its effects on airflow field. The results show the decrease of the indoor operative temperature with increment of the supply air flow rate, which is mainly due to the decreased thermal efficiency of the HRV system. The obtained results indicate that, while higher ventilation rates can significantly decrease the age of the air and gaseous contaminants level, at the same time, it would cause a local discomfort in some parts of the room.
Aminhossein Jahanbin; Giovanni Semprini. Numerical Study on Indoor Environmental Quality in a Room Equipped with a Combined HRV and Radiator System. Sustainability 2020, 12, 10576 .
AMA StyleAminhossein Jahanbin, Giovanni Semprini. Numerical Study on Indoor Environmental Quality in a Room Equipped with a Combined HRV and Radiator System. Sustainability. 2020; 12 (24):10576.
Chicago/Turabian StyleAminhossein Jahanbin; Giovanni Semprini. 2020. "Numerical Study on Indoor Environmental Quality in a Room Equipped with a Combined HRV and Radiator System." Sustainability 12, no. 24: 10576.
Given that the issue of variations in geometrical parameters of the borehole heat exchanger (BHE) revolves around the phenomenon of thermal resistance, a thorough understanding of these parameters is beneficial in enhancing thermal performance of BHEs. The present study seeks to identify relative changes in the thermal performance of double U-tube BHEs triggered by alterations in circuit arrangements, as well as the shank spacing and the borehole length. The thermal performance of double U-tube BHEs with different configurations is comprehensively analyzed through a 3D transient numerical code developed by means of the finite element method. The sensitivity of each circuit configuration in terms of the thermal performance to variations of the borehole length and shank spacing is investigated. The impact of the thermal interference between flowing legs, namely thermal short-circuiting, on parameters affecting the borehole thermal resistance is addressed. Furthermore, the energy exchange characteristics for different circuit configurations are quantified by introducing the thermal effectiveness coefficient. The results indicate that the borehole length is more influential than shank spacing in increasing the discrepancy between thermal performances of different circuit configurations. It is shown that deviation of the averaged-over-the-depth mean fluid temperature from the arithmetic mean of the inlet and outlet temperatures is more critical for lower shank spacings and higher borehole lengths.
Aminhossein Jahanbin; Giovanni Semprini; Andrea Natale Impiombato; Cesare Biserni; Eugenia Rossi Di Schio. Effects of the Circuit Arrangement on the Thermal Performance of Double U-Tube Ground Heat Exchangers. Energies 2020, 13, 3275 .
AMA StyleAminhossein Jahanbin, Giovanni Semprini, Andrea Natale Impiombato, Cesare Biserni, Eugenia Rossi Di Schio. Effects of the Circuit Arrangement on the Thermal Performance of Double U-Tube Ground Heat Exchangers. Energies. 2020; 13 (12):3275.
Chicago/Turabian StyleAminhossein Jahanbin; Giovanni Semprini; Andrea Natale Impiombato; Cesare Biserni; Eugenia Rossi Di Schio. 2020. "Effects of the Circuit Arrangement on the Thermal Performance of Double U-Tube Ground Heat Exchangers." Energies 13, no. 12: 3275.
Giovanni Semprini; Aminhossein Jahanbin; Beatrice Pulvirenti; Paolo Guidorzi. Evaluation of Thermal Comfort Inside an Office Equipped with a Fan Coil HVAC System: A CFD Approach. Future Cities and Environment 2019, 5, 1 .
AMA StyleGiovanni Semprini, Aminhossein Jahanbin, Beatrice Pulvirenti, Paolo Guidorzi. Evaluation of Thermal Comfort Inside an Office Equipped with a Fan Coil HVAC System: A CFD Approach. Future Cities and Environment. 2019; 5 (1):1.
Chicago/Turabian StyleGiovanni Semprini; Aminhossein Jahanbin; Beatrice Pulvirenti; Paolo Guidorzi. 2019. "Evaluation of Thermal Comfort Inside an Office Equipped with a Fan Coil HVAC System: A CFD Approach." Future Cities and Environment 5, no. 1: 1.
This paper proposes a novel multistep approach for comparing several architectural solutions with the aim to create additional volumes on existing buildings by means of the façade transformation. The nearly zero energy standard is the objective of the designing and the criteria for the comparison take into account the minimization of economic impacts and the maximization of comfort conditions for the occupants. An innovative SWOT matrix is proposed for evaluating, with multidisciplinary approach, the results of the refurbishment design. The internal strengths and weaknesses are referred to the building occupants, while external opportunities and threats are referred to the whole society. The proposed approach is applied to the B Building FEPA of the student dormitory in the National and Kapodistrian University of Athens in the frame of a research project financed by HORIZON 2020 funds. With reference to the case study, an increment of around 22% of living space is achieved with energy saving and polluting reduction of around 90%; at the same time the amenity of the outdoor environment, the seismic security, the global comfort are improved. The results of the case study allow to demonstrate how the volume add-ons technique can bring many benefits, not only on the energetic point of view, in the refurbishment of the existing building stock. The awareness of these advantages could encourage occupants, tenants and communities to participate actively in the designing process, and it could be accelerate the achievement of the nearly zero energy standard for the existing building stock. This is the future goal for the sustainable development of the building sector.
Margarita-Niki Assimakopoulos; Rosa Francesca De Masi; Anastasia Fotopoulou; Dimitra Papadaki; Silvia Ruggiero; Giovanni Semprini; Giuseppe Peter Vanoli. Holistic approach for energy retrofit with volumetric add-ons toward nZEB target: Case study of a dormitory in Athens. Energy and Buildings 2019, 207, 109630 .
AMA StyleMargarita-Niki Assimakopoulos, Rosa Francesca De Masi, Anastasia Fotopoulou, Dimitra Papadaki, Silvia Ruggiero, Giovanni Semprini, Giuseppe Peter Vanoli. Holistic approach for energy retrofit with volumetric add-ons toward nZEB target: Case study of a dormitory in Athens. Energy and Buildings. 2019; 207 ():109630.
Chicago/Turabian StyleMargarita-Niki Assimakopoulos; Rosa Francesca De Masi; Anastasia Fotopoulou; Dimitra Papadaki; Silvia Ruggiero; Giovanni Semprini; Giuseppe Peter Vanoli. 2019. "Holistic approach for energy retrofit with volumetric add-ons toward nZEB target: Case study of a dormitory in Athens." Energy and Buildings 207, no. : 109630.
The aim of this paper is to evaluate and illustrate the energy saving potential and Indoor Environmental Quality (IEQ) performances of a façade addition on existing and low energy performing buildings. Different technical solutions are proposed and all IEQ indicators' simulation results are presented for the case of a students' building block of the 80's located in Athens. The building is the demonstrator of the "Pro-GET-onE" Horizon 2020 project, that aims to demonstrate the attractiveness and the energy efficiency of a renovation strategy based on new façade additions combining inteGrated Efficient Technologies (GETs). The research project proposes the highest transformation of the existing building's shell with external added volumes, which generate energy efficient buffer zones and at the same time increase the building's volume (with balconies, sunspaces and extra rooms). This strategy gives also the possibility to increase IEQ performance, in different ways depending on the architectural solutions, the selected materials and the adopted technological solutions. As a general statement, the facade addition solution leads to an increase of the thermo-hygrometric conditions (both for the cold winter season and the summer period), of the facade sound insulation and consequently the acoustic comfort, and of the indoor air quality. The lighting and the visual comfort are a critical point due to the enlargement of the existing surface of the rooms: specific light enhancement techniques have been studied to optimize indoor light, therefore minimizing the drawbacks of façade expansions, and will be suggested for the final design of the case study. The detailed analysis of individual units (additions) led to the formulation of hypotheses for targeted energy retrofitting interventions in different options; with different scenarios of integrated RES technologies, these options have been analysed both separately and in combination, to assess the technical, the energy feasibility and the IEQ performance in each scenario.
Annarita Ferrante; Anastasia Fotopoulou; Giovanni Semprini; Davide Cantelli; Silvia Ruggiero; Michalis Karalis; Chrysanthi Efthymiou; Dimitra Papadaki; Margarita-Niki Assimakopoulos. IEQ and energy improvement of existing buildings by prefabricated facade additions: the case of a student house in Athens. IOP Conference Series: Materials Science and Engineering 2019, 609, 042047 .
AMA StyleAnnarita Ferrante, Anastasia Fotopoulou, Giovanni Semprini, Davide Cantelli, Silvia Ruggiero, Michalis Karalis, Chrysanthi Efthymiou, Dimitra Papadaki, Margarita-Niki Assimakopoulos. IEQ and energy improvement of existing buildings by prefabricated facade additions: the case of a student house in Athens. IOP Conference Series: Materials Science and Engineering. 2019; 609 (4):042047.
Chicago/Turabian StyleAnnarita Ferrante; Anastasia Fotopoulou; Giovanni Semprini; Davide Cantelli; Silvia Ruggiero; Michalis Karalis; Chrysanthi Efthymiou; Dimitra Papadaki; Margarita-Niki Assimakopoulos. 2019. "IEQ and energy improvement of existing buildings by prefabricated facade additions: the case of a student house in Athens." IOP Conference Series: Materials Science and Engineering 609, no. 4: 042047.
And international projectsvarious EU H2020 projectsThough housing is one of the most energy consumer sectors, it is currently extremely underestimated, because of a clear investment gap due to economic, social and legislative barriers. The EU project ABRACADABRA (Assistant Building to Retrofit, Adopt, Cure And Develop the Actual Buildings up to zeRo energy, Activating a market for deep renovation) is based on the idea that the real estate value increase given by the appropriate densification strategy in urban environments could be an opportunity to activate a market for deep energy renovation. To prove the effectiveness of the strategy more than 70 case studies throughout the EU cities have been assessed by means of a cost-effective analysis. Basing on the parametric variation of the different values involved (cost of construction, energy, etc.) the benefit of this strategy has been proved in the majority of the different building types and contexts.More interestingly, the ABRA strategy has been simulated and tested outside Europe in order to verify its scalability and the possibility of considering other non-energy related benefits in the renovation of the existing building stock. A specific study on the NYC urban context has been conducted to effectively adapt the strategy and combine the global drivers of energy consumption reduction and CO2 emission reduction with the local need of combating flood emergency and related flood-proofing measures.The results reached by this work demonstrate how the energy retrofit trough add-ons reduces significantly the payback times of the investments, preserve soil consumption, while providing a extraordinary opportunity to enhance urban resiliency by challenging the local emergencies.
Annarita Ferrante; Fabrizio Ungaro; Giovanni Semprini; Lorna Dragonetti; Elettra Agliardi; Anastasia Fotopoulou. Deep renovation up to zero energy through Add-ons: the ABRACADABRA Project. IABSE Congress, New York, New York 2019: The Evolving Metropolis 2019, 252 -262.
AMA StyleAnnarita Ferrante, Fabrizio Ungaro, Giovanni Semprini, Lorna Dragonetti, Elettra Agliardi, Anastasia Fotopoulou. Deep renovation up to zero energy through Add-ons: the ABRACADABRA Project. IABSE Congress, New York, New York 2019: The Evolving Metropolis. 2019; ():252-262.
Chicago/Turabian StyleAnnarita Ferrante; Fabrizio Ungaro; Giovanni Semprini; Lorna Dragonetti; Elettra Agliardi; Anastasia Fotopoulou. 2019. "Deep renovation up to zero energy through Add-ons: the ABRACADABRA Project." IABSE Congress, New York, New York 2019: The Evolving Metropolis , no. : 252-262.
The aim of this paper is to evaluate and illustrate the energy saving potential of the façade addition on existing and low energy performing block buildings in different climatic contexts. To achieve this purpose, the paper illustrates some outstanding case studies on deep renovation through façade and volumetric additions, as reference possible solutions towards energy renovation. To further assess the energy potential of these transformations, the same solutions have been applied to a reference building in Bologna. In particular, a selected apartment of typical building block has been investigated and simulated in detail, to identify the buildings’ energy requirement and propose different retrofitting hypotheses towards nearly Zero Energy Buildings (nZEBs). Simulations of these different hypotheses resulted in corresponding diverse energy performances, from the very low grade of performance in “as built” scenario, up to nearly zero energy demand, for selected technological solutions applied in specific climatic contexts. To further estimate the energy impact the same apartment has been “extracted” from its original climatic context and energy simulations have been also carried out in two different climatic zones. Obtained results prove that façade additions are a very powerful solution towards the aim of zero Energy in existing buildings.
Anastasia Fotopoulou; Giovanni Semprini; Elena Cattani; Yves Schihin; Julian Weyer; Riccardo Gulli; Annarita Ferrante. Deep renovation in existing residential buildings through façade additions: A case study in a typical residential building of the 70s. Energy and Buildings 2018, 166, 258 -270.
AMA StyleAnastasia Fotopoulou, Giovanni Semprini, Elena Cattani, Yves Schihin, Julian Weyer, Riccardo Gulli, Annarita Ferrante. Deep renovation in existing residential buildings through façade additions: A case study in a typical residential building of the 70s. Energy and Buildings. 2018; 166 ():258-270.
Chicago/Turabian StyleAnastasia Fotopoulou; Giovanni Semprini; Elena Cattani; Yves Schihin; Julian Weyer; Riccardo Gulli; Annarita Ferrante. 2018. "Deep renovation in existing residential buildings through façade additions: A case study in a typical residential building of the 70s." Energy and Buildings 166, no. : 258-270.
The paper describes the progress of the four-year European project Pro-GET-onE currently under implementation. This research and innovation project is based on the assumption that greater efficiency, attractiveness, and marketable renovation can only be achieved through an integrated set of technologies where all the different requirements (energy, structural, functional) are optimally managed. Thus, the project focuses on the unprecedented integration of different technologies to achieve a multi-benefit approach that is provided by a closer integration between energy and non-energy related benefits. The project aims to combine different pre-fabricated elements in a unified and integrated system resulting in a higher performance in terms of energy requirements, structural safety, and social sustainability. The project attempts to achieve this goal through the introduction of innovative solutions for building envelopes to optimally combine the climatic, structural, and functional aspects through a significant architectural transformation and a substantial increase of the real estate value of the buildings. This augmented value obtained through the application of the inteGrated Efficient Technologies (GETs) is extremely important when considering the necessity of creating an innovative and attractive market in the energy renovation of existing buildings towards the target of nearly zero energy buildings (nZEBs).
Annarita Ferrante; Giovanni Mochi; Giorgia Predari; Lorenzo Badini; Anastasia Fotopoulou; Riccardo Gulli; Giovanni Semprini. A European Project for Safer and Energy Efficient Buildings: Pro-GET-onE (Proactive Synergy of inteGrated Efficient Technologies on Buildings’ Envelopes). Sustainability 2018, 10, 812 .
AMA StyleAnnarita Ferrante, Giovanni Mochi, Giorgia Predari, Lorenzo Badini, Anastasia Fotopoulou, Riccardo Gulli, Giovanni Semprini. A European Project for Safer and Energy Efficient Buildings: Pro-GET-onE (Proactive Synergy of inteGrated Efficient Technologies on Buildings’ Envelopes). Sustainability. 2018; 10 (3):812.
Chicago/Turabian StyleAnnarita Ferrante; Giovanni Mochi; Giorgia Predari; Lorenzo Badini; Anastasia Fotopoulou; Riccardo Gulli; Giovanni Semprini. 2018. "A European Project for Safer and Energy Efficient Buildings: Pro-GET-onE (Proactive Synergy of inteGrated Efficient Technologies on Buildings’ Envelopes)." Sustainability 10, no. 3: 812.
Giovanni Semprini; Riccardo Gulli; Annarita Ferrante. Deep regeneration vs shallow renovation to achieve nearly Zero Energy in existing buildings. Energy and Buildings 2017, 156, 327 -342.
AMA StyleGiovanni Semprini, Riccardo Gulli, Annarita Ferrante. Deep regeneration vs shallow renovation to achieve nearly Zero Energy in existing buildings. Energy and Buildings. 2017; 156 ():327-342.
Chicago/Turabian StyleGiovanni Semprini; Riccardo Gulli; Annarita Ferrante. 2017. "Deep regeneration vs shallow renovation to achieve nearly Zero Energy in existing buildings." Energy and Buildings 156, no. : 327-342.
ABRACADABRA is an European Project funded by the Horizon 2020 Program, based on the assumption that substantial increase in the real estate value of the existing buildings can play a key role in the deep renovation. The project aims at demonstrating to the key stakeholders and financial investors the attractiveness of a new renovation strategy based on volumetric Add-ons and Renewable energy sources (AdoRES) intended as one (or a set of) Assistant Building unit(s) – like aside or façade additions, rooftop extensions or even an entire new building construction – that “adopt” the existing buildings (the Assisted Buildings) to achieve nearly zero energy. The creation of these AdoRES aims at reducing the initial investment allocated for the deep renovation of the existing building creating an up-grading synergy between old and new. The ABRA strategy can thus result in the implementation of a punctual densification policy that aims at fostering the investments in deep renovation of the existing built environment, driving process innovation in the construction and the real estate sector. The paper, after outlining the main aspect of the project, focuses on a case study in Italian context, where different technological solutions and related economic impact are analysed: from a deep renovation to AdoRES strategies and different scenarios of renovation. The preliminary feasibility study and cost assessment, show the benefit given by the presented strategy in overcoming actual financial e tecnical barriers.
Giovanni Semprini; Annarita Ferrante; Elena Cattani; Anastasia Fotopolulou. New strategies towards nearly zero energy in existing buildings: the ABRACADABRA project. Energy Procedia 2017, 140, 151 -158.
AMA StyleGiovanni Semprini, Annarita Ferrante, Elena Cattani, Anastasia Fotopolulou. New strategies towards nearly zero energy in existing buildings: the ABRACADABRA project. Energy Procedia. 2017; 140 ():151-158.
Chicago/Turabian StyleGiovanni Semprini; Annarita Ferrante; Elena Cattani; Anastasia Fotopolulou. 2017. "New strategies towards nearly zero energy in existing buildings: the ABRACADABRA project." Energy Procedia 140, no. : 151-158.
The definition of intervention strategies for the restoration and the functional actualization of historic and high artistic quality artifacts, postulates a systemic approach for the different variables that contribute to the definition of the project. This paper presents an emblematic case study of an historic building, the church of St. Francis in San Giovanni in Persiceto near Bologna, one of the most representative of the architectural construction of Bolognese Baroque, built by Alfonso Torreggiani. The expected new functions as exhibition hall and/or concert activities, requires a search for integrated strategies to ensure indoor comfort requirements (thermo-hygrometric, acoustics) and to define HVAC plant equipment for the reduction of energy consumption without affecting the historic values and artistic perception of the building. Therefore, the analysis of the church in the survey phase, besides the usual historical and architectural investigations, should investigate the potential issues and the critical aspects of structures, like the multilayered floor and refined decorations that lines the walls of the nave. Understanding the intimate rationality of the building (presence of any shafts, steps etc .) is a prerequisite for the inclusion of plant components without altering the visual perception and to optimize the acoustic and the climatization plant systems. Although the use of renewable energy are required today for all new plant systems, in this case it was decided to exclude invasive elements that could have altered the image of the entire monumental complex of which the church belongs. The proposed HVAC plant, after an analysis of dynamic thermal behaviour of the building, is an air-conditioning system coupled to radiant heating system to ensure, in a climate context with high humidity levels, the optimal temperature and humidity not only for comfort conditions but also for preservation of the building itself and of artistic works.
Giovanni Semprini; Claudio Galli; Silvia Farina. Reuse of an ancient church: thermal aspect for integrated solutions. Energy Procedia 2017, 133, 327 -335.
AMA StyleGiovanni Semprini, Claudio Galli, Silvia Farina. Reuse of an ancient church: thermal aspect for integrated solutions. Energy Procedia. 2017; 133 ():327-335.
Chicago/Turabian StyleGiovanni Semprini; Claudio Galli; Silvia Farina. 2017. "Reuse of an ancient church: thermal aspect for integrated solutions." Energy Procedia 133, no. : 327-335.
Deep renovation of existing buildings represents an important strategy to go beyond the standard energy retrofit (as the increasing of thermal insulation of building envelope) and to provide more benefits to residents considering non-energetic aspects, like the improvement of architectural quality of building and of indoor life quality. In this context, façade's additional elements (balconies, solar greenhouses, etc.) can be effective solutions in order to increase thermal and acoustic performances as well as providing a more living space to the outside. This paper analyzes and compares different technical construction systems for façade improvement in order to define robust solutions correlated both to outdoor climate context (to increase energy performances towards nearly Zero Energy Buildings) and to outdoor noise for a better acoustic sound insulation. A case study is presented, and dynamic energy simulations, performed on a building made with materials and construction technology widespread in Italy in the '60s, show the energy impact of different solutions. The evaluation of acoustic façade insulation highlights the need to consider not only the properties of materials but also the effects of flanking transmission, sometimes correlated to thermal bridges, and façade shapes of which continuous balcony solutions give an important increase on acoustic performances.
Giovanni Semprini; Antonino Di Bella; Simone Secchi; Luca Barbaresi; Nicola Granzotto; Anastasia Fotopoulou. Improvement of acoustic and thermal performances of façades on retrofit buildings. The Journal of the Acoustical Society of America 2017, 141, 3539 -3539.
AMA StyleGiovanni Semprini, Antonino Di Bella, Simone Secchi, Luca Barbaresi, Nicola Granzotto, Anastasia Fotopoulou. Improvement of acoustic and thermal performances of façades on retrofit buildings. The Journal of the Acoustical Society of America. 2017; 141 (5):3539-3539.
Chicago/Turabian StyleGiovanni Semprini; Antonino Di Bella; Simone Secchi; Luca Barbaresi; Nicola Granzotto; Anastasia Fotopoulou. 2017. "Improvement of acoustic and thermal performances of façades on retrofit buildings." The Journal of the Acoustical Society of America 141, no. 5: 3539-3539.
Energy Efficiency (EE) has become a common target for all buildings: the European Directive 2010/31 specifies that every new building must consume very little fossil energy (Nearly Zero Energy Building) by 2020; this deadline for public buildings is fixed by the end of 2018.
Giovanni Semprini; Cosimo Marinosci; Annarita Ferrante; Giorgia Predari; Giovanni Mochi; Massimo Garai; Riccardo Gulli. Energy management in public institutional and educational buildings: The case of the school of engineering and architecture in Bologna. Energy and Buildings 2016, 126, 365 -374.
AMA StyleGiovanni Semprini, Cosimo Marinosci, Annarita Ferrante, Giorgia Predari, Giovanni Mochi, Massimo Garai, Riccardo Gulli. Energy management in public institutional and educational buildings: The case of the school of engineering and architecture in Bologna. Energy and Buildings. 2016; 126 ():365-374.
Chicago/Turabian StyleGiovanni Semprini; Cosimo Marinosci; Annarita Ferrante; Giorgia Predari; Giovanni Mochi; Massimo Garai; Riccardo Gulli. 2016. "Energy management in public institutional and educational buildings: The case of the school of engineering and architecture in Bologna." Energy and Buildings 126, no. : 365-374.
Adoption of energy metering systems in apartments with centralized heating plant will lead to greater awareness of the users on energy consumptions. Moreover control systems allow to manage internal temperature according to kind of occupation of the apartment. Starting from the energy consumption of a case study, an apartment block in Bologna, this paper shows the results, based on dynamic simulation, of reduction of energy needs resulting from retrofitting on the building envelope and the effects of thermoregulation systems. Different setting of the internal temperature in adjacent apartments can lead to a variation of energy consumption up to 30%.
Giovanni Semprini; Davide Barbieri; Alessandro Gober; Francesca Zandi. Effect of Occupant Behavior and Control Systems on the Reduction of Energy Needs of Residential Buildings. Energy Procedia 2015, 78, 633 -638.
AMA StyleGiovanni Semprini, Davide Barbieri, Alessandro Gober, Francesca Zandi. Effect of Occupant Behavior and Control Systems on the Reduction of Energy Needs of Residential Buildings. Energy Procedia. 2015; 78 ():633-638.
Chicago/Turabian StyleGiovanni Semprini; Davide Barbieri; Alessandro Gober; Francesca Zandi. 2015. "Effect of Occupant Behavior and Control Systems on the Reduction of Energy Needs of Residential Buildings." Energy Procedia 78, no. : 633-638.
The analysis of existing built environment shows that the critical values of the peripheral areas, together with the very poor energy performance of existing buildings and the levels of possible transformations they imply, may contribute, collectively, to formulate from light to radical proposals for urban and building retrofitting. In such urban contexts, the reading of urban spaces and the environmental evaluation of their use, both in relation to the intrinsic features of the buildings and with the outdoor spaces, take on a renewed importance. In terms of architectural structure, this importance is focused on the building shell, which can be properly re-thought by proposing new energy efficient technological solutions aimed at re-shaping the technical and formal aspect of the building. These solutions, although developed and conducted on a single building and at the building-level technology, thus contributing to re-function the spatial units, may also been conceived in order to positively affect the urban places and the surrounding environment, fostering a mending relation between the built space and the environmental boundary conditions
Annarita Ferrante; Giovanni Semprini. Building energy retrofitting in urban areas. Procedia Engineering 2011, 21, 968 -975.
AMA StyleAnnarita Ferrante, Giovanni Semprini. Building energy retrofitting in urban areas. Procedia Engineering. 2011; 21 ():968-975.
Chicago/Turabian StyleAnnarita Ferrante; Giovanni Semprini. 2011. "Building energy retrofitting in urban areas." Procedia Engineering 21, no. : 968-975.