scholarly journals PREFABRICATED TIMBER PANELS APPLICATION POSSIBILITIES FOR THE ENERGY REFURBISHMENT OF RESIDENTIAL BUILDINGS ENVELOPE IN BOSNIA-HERZEGOVINA AND SLOVENIA

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Darija Gajić ◽  
Anna Sandak ◽  
Slobodan Peulić ◽  
Črtomir Tavzes ◽  
Tim Mavrič
Keyword(s):  
European Union ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Hvac System ◽  
The European Union ◽  
Renewable Materials ◽  
Building Stock ◽  
Existing Building ◽  
Residential Building Stock

System of prefabricated modules installed on the existing building envelope is one alternativesolution for deep energy refurbishment of buildings in the European Union. It allows thermalupgrade installation of new parts in the HVAC system. Moreover, some elements of the envelopecan be made of renewable materials. This research compares the residential building stock andidentifies potential types of buildings for energy refurbishment in Bosnia and Herzegovina andSlovenia. It presents refurbishment possibilities of existing residential building stock in bothcountries with prefabricated timber panels. It also presents potential obstacles to the widerapplication of this refurbishment solution.

scholarly journals Energy Renovation of Residential Buildings in Hot and Temperate Mediterranean Zones Using Optimized Thermal Envelope Insulation Thicknesses: The Case of Spain

2021 ◽  
Vol 11 (1) ◽  
pp. 370
Author(s):  
Jesús Las-Heras-Casas ◽  
Luis M. López-Ochoa ◽  
Luis M. López-González ◽  
Pablo Olasolo-Alonso
Keyword(s):  
Life Cycle Cost ◽  
Residential Buildings ◽  
Residential Building ◽  
Temperate Climate ◽  
Life Cycle Cost Analysis ◽  
The European Union ◽  
Building Stock ◽  
Existing Building ◽  
Heating And Cooling ◽  
Residential Building Stock

One of the greatest challenges facing the European Union is the conversion of the existing residential building stock into nearly zero-energy buildings (NZEBs) by 2050 through energy renovation, given that the residential sector is one of the largest consumers of final energy and that approximately two-thirds of existing dwellings were built before 1980. The objective of this study is to assess the energy, environmental, and economic impacts of the energy renovation of thermal envelopes of existing multi-family buildings in the hot and temperate climate zones of Spain by using life cycle cost analysis (LCCA) to determine the optimal thicknesses of insulation to be added to the walls, roof, and first floor framework of the buildings and replacing existing building openings to achieve NZEBs. Four thermal insulation materials are considered with four different heating and cooling systems and ten different models. With the methodology developed, the best energy renovation solutions are estimated and then thermally simulated. In total, 67 of the 576 proposed energy renovation solutions achieve NZEBs. This study fills in the gap between LCCA estimates and reality.

scholarly journals TOPOI RESOURCES: Quantification and Assessment of Global Warming Potential and Land-Uptake of Residential Buildings in Settlement Types along the Urban–Rural Gradient—Opportunities for Sustainable Development

2021 ◽  
Vol 13 (8) ◽  
pp. 4099
Author(s):  
Ann-Kristin Mühlbach ◽  
Olaf Mumm ◽  
Ryan Zeringue ◽  
Oskars Redbergs ◽  
Elisabeth Endres ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Global Warming ◽  
Energy Consumption ◽  
Global Warming Potential ◽  
Residential Buildings ◽  
Residential Building ◽  
Negative Effects ◽  
Building Stock ◽  
Residential Building Stock ◽  
Urban Rural

The METAPOLIS as the polycentric network of urban–rural settlement is undergoing constant transformation and urbanization processes. In particular, the associated imbalance of the shrinkage and growth of different settlement types in relative geographical proximity causes negative effects, such as urban sprawl and the divergence of urban–rural lifestyles with their related resource, land and energy consumption. Implicitly related to these developments, national and global sustainable development goals for the building sector lead to the question of how a region can be assessed without detailed research and surveys to identify critical areas with high potential for sustainable development. In this study, the TOPOI method is used. It classifies settlement units and their interconnections along the urban–rural gradient, in order to quantify and assess the land-uptake and global warming potential driven by residential developments. Applying standard planning parameters in combination with key data from a comprehensive life cycle assessment of the residential building stock, a detailed understanding of different settlement types and their associated resource and energy consumption is achieved.

scholarly journals Building energy modelling for the energy performance analysis of a hospital building in various locations

2019 ◽  
Vol 111 ◽  
pp. 06073 ◽  
Author(s):  
Ioan Silviu Dobosi ◽  
Cristina Tanasa ◽  
Nicoleta-Elena Kaba ◽  
Adrian Retezan ◽  
Dragos Mihaila
Keyword(s):  
European Union ◽  
Building Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
The European Union ◽  
Total Energy Consumption ◽  
Building Stock ◽  
Heating And Cooling ◽  
Key Factor ◽  
Hospital Building

The building sector has been identified as having the greatest energy reduction potential and therefore represents a key factor for the European Union climate change combat objectives of achieving an 80-95% greenhouse gas emissions reduction by 2050. Hospitals buildings represent 7% of the nonresidential building stock in the European Union and are responsible for approximately 10% of the total energy consumption in this sector. The design and construction of hospital buildings is a complex and challenging activity for all the involved specialists, especially when energy performance is one of the objectives. This paper discusses the energy performance simulation on an hourly basis of a new hospital building that was constructed in the city of Mioveni, Romania. At this stage of the study, the building energy model solely investigates the performance of the building envelope, without modelling the HVAC system. The complexity of the building model derives from the multitude of thermal zones depending on interior temperature and ventilation air changes conditions. Several simulations are performed investigating the heating and cooling energy need depending on the building location.

Green Retrofit Energy Efficiency Potential on Existing Building Envelope for Residential and Non-Residential Building

2021 ◽  
pp. 1227-1257
Author(s):  
Robert Staiger
Keyword(s):  
Energy Efficiency ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Residential Buildings ◽  
Ecological Impact ◽  
Residential Building ◽  
Building Envelope ◽  
Existing Building ◽  
Primary Energy Demand ◽  
Energy Efficiency Potential

The chapter deals with the green energetic consideration of today's building envelopes for residential and non-residential buildings. It investigates the energetic effects the envelopes have on energy efficiency, energy consumption, material use, sustainable use of resources, lifetime considerations, economic and ecological impact. Today's it is estimated that approximately 30% of the annual primary energy demand for residential and non-residential buildings is needed. Energy resources for heat, electricity, air conditioning and cooling purposes, fossil fuels in form of gas and liquid are predominantly used.

scholarly journals A Multilevel Procedure at Urban Scale to Assess the Vulnerability and the Exposure of Residential Masonry Buildings: The Case Study of Pordenone, Northeast Italy

Heritage ◽  
2020 ◽  
Vol 3 (4) ◽  
pp. 1433-1468
Author(s):  
Marco Vettore ◽  
Marco Donà ◽  
Pietro Carpanese ◽  
Veronica Follador ◽  
Francesca da Porto ◽  
...  
Keyword(s):  
Residential Buildings ◽  
Fragility Curves ◽  
Multicriteria Analysis ◽  
Residential Building ◽  
Mechanical Analysis ◽  
Masonry Buildings ◽  
Building Stock ◽  
Damage Scenarios ◽  
Residential Building Stock ◽  
Definition Of

More than the 60% of the Italian residential building stock had already been built by 1974, when seismic codes were enforced on a minimal part of the country. Unreinforced masonry buildings represent most of that share, but they are typical for each region, in terms of both materials and structural configurations. The definition of ‘regional’, i.e., more specific, vulnerability and exposure models are required to improve existing forecast models. The research presents a new geographic information system (GIS)-based multilevel procedure for earthquake disaster prevention planning at urban scale; it includes multicriteria analysis, such as architectural types, structural vulnerability analysis, microzonation studies, and socio-economic aspects. The procedure has been applied to the municipality of Pordenone (PN), a district town of the Friuli–Venezia–Giulia region, in Northeast Italy. To assess the urban seismic risk, more than 5000 masonry residential buildings were investigated and common types within sub-municipal areas and exposure data were collected. Simplified mechanical analysis provided a ‘regional’ vulnerability model through typological fragility curves. The integration of results into GIS tool permitted the definition of cross-mapping among vulnerability, damage scenarios (conditional and unconditional) and exposure (seismic losses, casualties, impact), with respect to various earthquake intensities expected in the town. These results are presented at different scales: from the single building, to submunicipal area and to the entire town.

scholarly journals Exploring the Energy Implication of Urban Density in Residential Buildings

2017 ◽  
Vol 7 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Soufiane Boukarta ◽  
Ewa Berezowska
Keyword(s):  
Energy Consumption ◽  
Residential Buildings ◽  
Pearson Correlation ◽  
Residential Building ◽  
Holistic Approach ◽  
Building Stock ◽  
Urban Density ◽  
Spatial Approach ◽  
Residential Building Stock ◽  
Gas Consumption

AbstractIn the context of the Algerian energy policy, and through the review of the Algiers’ residential building stock, this paper explores the correlation between the energy consumption of gas and electricity with urban density. Based on a holistic approach of the 57 Algiers’ municipalities, the analysis is organized in two ways. Firstly, the spatial approach is conducted within a GIS implementation, carried out based on the 2013 aggregated annual energy consumption data. The cross analysis of Electricity and Gas consumption and density of population within a GIS spatial distribution approach shows effectively a strong correlation between urban density and energy consumption with a Pearson correlation of −56% and −65% of the Electricity and Gas consumption in the urban municipalities, respectively. Also, the household located in the suburban municipalities consume clearly more energy than the urban centered ones. Based on the electricity and gas consumption, density and carbon footprint we have clustered, within a PCA, the Algiers’ municipalities into three profiles: the “thrifty”, the “intermediate” and the “wasteful” profile.

scholarly journals Assessment of the Energy Savings Potential in the Residential Building Stock in Bosnia and Herzegovina

2017 ◽  
Vol 2017 ◽  
Author(s):  
Nermina Zagora ◽  
Mladen Burazor ◽  
Erdin Salihović
Keyword(s):  
Bosnia And Herzegovina ◽  
Energy Savings ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Stock ◽  
Policy Makers ◽  
Research Activities ◽  
The Status ◽  
Residential Building Stock ◽  
The Individual

This paper intends to bring attention of both scientific and general audience to the status quo of the existing, residential building stock in Bosnia and Herzegovina, highlighting its energy savings potential. The research results presented in this text may be applicable on two levels: on a larger scale, the policy makers may use this data in the process of development of strategic and EE measures implementation plans, while, on a smaller scale, the individual users may gain practical insight into the benefits of energy saving measures and implement them in their own households. Moreover, the exposed data may be subject to further evaluations, studies and comparisons, while the presented methodology can be used by other researchers in countries where there have not been research activities on the existing residential buildings stock from the EE perspective.

scholarly journals Selection of Favourable Concept of Energy Retrofitting Solution for Social Housing in the Czech Republic Based on Economic Parameters, Greenhouse Gases, and Primary Energy Consumption

2019 ◽  
Vol 11 (22) ◽  
pp. 6482
Author(s):  
Katerina Sojkova ◽  
Martin Volf ◽  
Antonin Lupisek ◽  
Roman Bolliger ◽  
Tomas Vachal
Keyword(s):  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Residential Buildings ◽  
Residential Building ◽  
Primary Energy ◽  
Primary Energy Consumption ◽  
Building Stock ◽  
Gas Emissions ◽  
Residential Building Stock

Energy retrofitting of existing building stock has significant potential for the reduction of energy consumption and greenhouse gas emissions. Roughly half of the CO2 emissions from Czech building stock are estimated to be allocated to residential buildings. Approximately one-third of the Czech residential building stock have already been retrofitted, but retrofitting mostly takes place in large cities due to greater income. A favourable concept for the mass retrofitting of residential building stock, affordable even in low-income regions, was of interest. For a reference building, multi-criteria assessment of numerous retrofitting measures was performed. The calculation involved different building elements, materials, solutions, and energy-efficiency levels in combination with various heating systems. The assessment comprised environmental impact, represented by operational and embodied primary energy consumption and greenhouse gas emissions, and investment and operational costs using the annuity method. Analysis resulted in the identification of favourable retrofitting measures and showed that complex building retrofitting is advantageous from both a cost and an environmental point of view. The environmental burden could be decreased by approximately 10–30% even without photovoltaic installation, and costs per year could be decreased by around 40%.

scholarly journals Energy Retrofitting Effects on the Energy Flexibility of Dwellings

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2788 ◽  
Author(s):  
Francesco Mancini ◽  
Benedetto Nastasi
Keyword(s):  
Energy Demand ◽  
Production Systems ◽  
Residential Building ◽  
Energy Transition ◽  
Cost Effective ◽  
Heat Pumps ◽  
Building Envelope ◽  
Hot Water ◽  
Building Stock ◽  
Residential Building Stock

Electrification of the built environment is foreseen as a main driver for energy transition for more effective, electric renewable capacity firming. Direct and on-time use of electricity is the best way to integrate them, but the current energy demand of residential building stock is often mainly fuel-based. Switching from fuel to electric-driven heating systems could play a key role. Yet, it implies modifications in the building stock due to the change in the temperature of the supplied heat by new heat pumps compared to existing boilers and in power demand to the electricity meter. Conventional energy retrofitting scenarios are usually evaluated in terms of cost-effective energy saving, while the effects on the electrification and flexibility are neglected. In this paper, the improvement of the building envelope and the installations of electric-driven space heating and domestic hot water production systems is analyzed for 419 dwellings. The dwellings database was built by means of a survey among the students attending the Faculty of Architecture at Sapienza University of Rome. A set of key performance indicators were selected for energy and environmental performance. The changes in the energy flexibility led to the viable participation of all the dwellings to a demand response programme.

Seismic risk assessment for the residential buildings of the major three cities in Colombia: Bogotá, Medellín, and Cali

2020 ◽  
Vol 36 (1_suppl) ◽  
pp. 298-320
Author(s):  
Ana Beatriz Acevedo ◽  
Catalina Yepes-Estrada ◽  
Daniela González ◽  
Vitor Silva ◽  
Miguel Mora ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Seismic Risk ◽  
Residential Buildings ◽  
Residential Building ◽  
Exceedance Probability ◽  
Building Stock ◽  
Seismic Risk Assessment ◽  
Earthquake Scenarios ◽  
Residential Building Stock ◽  
Aggregate Loss

This study presents a seismic risk assessment and a set of earthquake scenarios for the residential building stock of the three largest metropolitan centers of Colombia: Bogotá, Medellín and Cali (with 8.0, 2.5, and 2.4 million inhabitants, respectively). A uniform methodology was followed for the development of the seismic hazard, vulnerability, and exposure models, thus allowing a direct comparison between the seismic risk of the different cities. Risk metrics such as exceedance probability curves and average annual losses were computed for each city. The earthquake scenarios were selected considering events whose direct economic impact is similar to the aggregated loss for a probability of exceedance of 10% in 50 years. Results show a higher mean aggregate loss ratio for Cali and similar mean aggregate loss ratios for Bogotá and Medellín. All of the models used in this study are openly accessible, enabling risk modelers, engineers, and stakeholders to explore them for disaster risk management.

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