scholarly journals Interlinked Sustainability Aspects of Low-Rise Residential Family House Development in Slovakia

2018 ◽  
Vol 10 (11) ◽  
pp. 3966 ◽  
Author(s):  
Silvia Vilčeková ◽  
Iveta Selecká ◽  
Eva Burdová ◽  
Ľudmila Mečiarová
Keyword(s):  
Environmental Assessment ◽  
Indoor Environment ◽  
Building Materials ◽  
Renewable Energy Sources ◽  
Current Trend ◽  
Energy Performance ◽  
Project Planning ◽  
Assessment System ◽  
Family House ◽  
Design And Construction

This paper compares the sustainability aspects of three family houses according to the Slovak building environmental assessment system (BEAS). Various categories of family houses were evaluated, including site selection, project planning, building construction, indoor environment, energy performance, and water and waste management. Based on the results, Family Houses 3 and 2 are certified as BEAS SILVER, with scores of 2.46 and 2.01, respectively. Family House 1 is certified as BEAS BRONZE, with an overall score of 1.44. The results show, not only the importance of the site in terms of availability, connectivity to the network and the potential to use renewable energy sources, but also the importance of the design and construction of the building, including the application of environmentally friendly building materials, ensuring the quality of the indoor environment and the energy efficiency of the building. The aims of this study were to highlight the current trend in the design and construction of low-rise residential family houses in Slovakia and to identify gaps in the design and construction of key sustainability aspects through the existing building environmental assessment system. In the future, many low-rise residential family houses will be assessed to modify and validate BEAS.

scholarly journals Evaluation of Family Houses in Slovakia Using a Building Environmental Assessment System

2020 ◽  
Vol 12 (16) ◽  
pp. 6524 ◽  
Author(s):  
Eva Krídlová Burdová ◽  
Iveta Selecká ◽  
Silvia Vilčeková ◽  
Dušan Burák ◽  
Anna Sedláková
Keyword(s):  
Water Management ◽  
Waste Management ◽  
Environmental Assessment ◽  
Site Selection ◽  
Indoor Environment ◽  
Energy Performance ◽  
Project Planning ◽  
Assessment System ◽  
Building Construction ◽  
Sustainable Construction

The presented study is focused on the verification of a Building Environmental Assessment System (BEAS). A total of 13 detached family houses representing typical construction sites in Slovakia were chosen for analysis, evaluation and certification by using a BEAS which contains several main fields: A—Site Selection and Project Planning; B—Building Construction; C—Indoor Environment; D—Energy Performance; E—Water Management; and F—Waste Management. The results of this study show that the current construction method for family houses does not respect the criteria of sustainable construction as much as it possibly can. The reason for this is that investment costs for construction are prioritized over environmental and social aspects. Therefore, one house with a score of 1.10 is certified as BEAS BRONZE, ten family houses with scores of 1.56–2.88 are certified as BEAS SILVER and only two family houses with total scores of 3.59 and 3.87, respectively, are certified as BEAS GOLD. The overall results show that the weakest fields of sustainability are Waste management, Energy performance and Building construction. The best-rated fields are Site Selection and Project Planning, Indoor Environment and Water Management. In the future, it is essential to pay attention to those areas where the sustainability criteria have not been reached, as well as to raise project teams’ awareness of sustainability issues and subsequently to transfer them to building practices.

Environmental Assessment of Building Materials and Constructions

2012 ◽  
Vol 174-177 ◽  
pp. 3161-3165
Author(s):  
Eva Kridlova-Burdova ◽  
Silvia Vilčeková
Keyword(s):  
Environmental Assessment ◽  
Building Materials ◽  
Environmental Safety ◽  
Energy Performance ◽  
Project Planning ◽  
Assessment System ◽  
Building Construction ◽  
Embodied Energy ◽  
The One ◽  
Selection Of

Since previous instances the requirements of environmental safety, suitability and responsibility of buildings have increased. The criteria of sustainability are included in building environmental assessment systems and tools used in different countries for evaluating their sustainable and environmental performance. The purpose of this paper is to introduce the one of most significant filed in building environmental assessment system (BEAS), which was developed at the Technical University of Košice. The Slovak system was developed on the basis of existing systems used in many countries. BEAS as a multi-criteria system which is incorporated in proposed main fields: site selection&project planning; building construction; indoor environment; energy performance; water management and waste management. Selection of building materials and structures is very important in term of embodied energy and emissions of pollutants. The field of building construction will be introduced in the paper. The aim is also weighting and analysis of significance of building construction indicators in system BEAS with is applicable in Slovak conditions.

scholarly journals Demand Side Flexibility Potential and Comfort Performance of Non-Residential Buildings

2021 ◽  
Vol 2069 (1) ◽  
pp. 012151
Author(s):  
Georgios Chantzis ◽  
Panagiota Antoniadou ◽  
Maria Symeonidou ◽  
Effrosyni Giama ◽  
Simeon Oxizidis ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Indoor Environment ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
Heating System ◽  
Energy Performance ◽  
Energy Sources ◽  
Demand Side ◽  
Eu Directive ◽  
The Eu

Abstract The need to create and maintain a sustainable indoor environment is now more than ever compelling. Both the legislation framework concerning the energy performance of buildings, as determined in its evolution through the EU Directives 2010/31/EU, 2012/27/EU and 2018/844/EU, and the European strategic plans towards green buildings, denote the need of sustainability and comfort of indoor environment for the occupant. Moreover, the EU Directive 2018/2001 sets the renewable energy target of at least 32% for 2030, denoting that the high renewable energy sources penetration level leads to challenges in the design and control of power generation, transmission and distribution. Demand side management may be able to provide buildings with the energy flexibility needed, in order to utilize the intermittent production of Renewable Energy Sources in a much more efficient and cost-effective way. The flexibility potential of installed building systems is investigated, while considering the effects on the indoor environment conditions and the perceived comfort. The implemented Demand Response (DR) control strategy shifts loads by changing heating system set point temperatures, based on market clearing prices of the day ahead market. The results indicated a reduction in energy consumption and energy costs, while maintaining indoor environment quality at satisfactory levels.

scholarly journals The thermomodernization of a single family house located in the Świętokrzyskie Mountains – a case study

2019 ◽  
Vol 28 (3) ◽  
pp. 394-404
Author(s):  
Urszula Pawlak ◽  
Marcin Pawlak
Keyword(s):  
Renewable Energy ◽  
Tap Water ◽  
Renewable Energy Sources ◽  
Energy Performance ◽  
Primary Energy ◽  
Energy Sources ◽  
Single Family ◽  
Central Heating ◽  
Family House

The paper presents the energy performance of a single-family house located in Domaszowice, the Kielce poviat. The analyzed object has been put into use in 2010 year. Due to the devices using non-renewable energy sources, installed in the building for the needs of hot tap water and central heating, for servicing, which human presence is necessary, two thermomodernizations were performed. The purpose of the calculations was to indicate the financial benefi ts, i.e. to reduce the costs of maintaining the home and to provide its residents with proper comfort of use of the building, bearing in mind also the health aspect. Changes have been proposed to reduce the demand for non-renewable primary energy of EP using renewable energy sources. As a result, the energy-efficient building that meets WT 2017 was obtained. The Certo 2015 program was used in the analysis.

Possibilities of Green Technologies Application in Building Design from Sustainability Dimensions

2017 ◽  
Author(s):  
Andrea Moňoková ◽  
Silvia Vilčeková ◽  
Eva Krídlová Burdová
Keyword(s):  
High Performance ◽  
Building Materials ◽  
Sustainability Assessment ◽  
Building Design ◽  
Assessment System ◽  
Embodied Energy ◽  
Special Focus ◽  
Green Technologies ◽  
Sustainability Principles ◽  
Family House

The aim of this paper is to summarize knowledge of green technologies and their applications in buildings, as well as high performance green buildings. Two alternatives of family house design are performed. The first alternative uses conventional building materials and it doesn’t follow the sustainability principles. On the other hand, the second one is designed by using the environmentally friendly materials and with sustainability principles in mind. Designs of conventional and green family house are mutually compared from energy efficiency, embodied energy and greenhouse gas emissions such as CO2eq. and SO2eq. point of view. A special focus is put on the sustainability assessment of designed houses by the Slovak environmental assessment system of buildings.

scholarly journals Calculation of cost-optimal combination of building materials and technical systems for nZEB single-family house using global cost calculation method

2019 ◽  
Vol 282 ◽  
pp. 02070
Author(s):  
Staņislavs Gendelis ◽  
Mikus Miķelsons ◽  
Andris Jakovičs ◽  
Edgars Bredovskis
Keyword(s):  
Building Materials ◽  
Renewable Energy Sources ◽  
Primary Energy ◽  
Design Stage ◽  
Cost Calculation ◽  
Single Family ◽  
Advantageous Selection ◽  
Global Cost ◽  
Calculation Methodology ◽  
Family House

As a rule, during the design stage of a single-family house, only initial costs are taken into account and optimised. Long-term financial calculations are usually not even made. At the same time, total costs to design, build and operate the building show a real difference in expenses while living in this house. In the case of nearly zero energy buildings (nZEBs), this global cost approach becomes especially useful because of the strict requirements of heating and primary energy, as well as the compulsory use of renewable energy sources, requiring more detailed and comprehensive calculations of a cost-optimal set of solutions. In this study, a nZEB single-family house is analysed in detail using a comparative global cost calculation methodology. Different insulation materials and construction types, as well as two types of windows and various heating systems, are combined to obtain the same calculated annual energy consumption. The economic calculations of each combination are carried out for the calculation period of 30 years, taking into account expected energy price increase, discount rate, etc. These calculations show the cost-optimal variants, allowing the prediction of a more advantageous selection of materials and system use in a nZEB in terms of the real operation costs.

Optimization of Building Envelope Components Based on Life Cycle Environmental Impacts and Costs

2014 ◽  
Vol 899 ◽  
pp. 93-98 ◽  
Author(s):  
Péter Medgyasszay ◽  
Zsuzsa Szalay
Keyword(s):  
Life Cycle ◽  
Environmental Impacts ◽  
Life Cycle Cost ◽  
Building Materials ◽  
Renewable Energy Sources ◽  
Energy Performance ◽  
Building Envelope ◽  
Environmental Indicators ◽  
Single Family ◽  
Operational Energy

Recent national and international building regulations on the energy performance of buildings focus mainly on the reduction of operational energy. This can be achieved by increasing the energy efficiency of the building, installing highly efficient building service systems and applying renewable energy sources. However, these measures have a price in terms of investment costs, and also in terms of environmental impacts. The life-cycle of building materials, building constructions or whole buildings from cradle to grave can be assessed using the method of Life Cycle Assessment (LCA) and Life Cycle Cost analysis (LCC). These tools take into account not only the heating energy saving due to additional insulation, but also the embodied environmental impacts and costs of the investment. In this paper, the optimum thickness of various insulation materials, including natural and recycled materials is examined considering three main environmental indicators and global costs. The analysis is performed for a typical Hungarian single-family house subject to retrofit.

Technology Politics, An Analytical Unit

1982 ◽  
Vol 32 ◽  
pp. 17-17
Author(s):  
Stephen R. Lefevre
Keyword(s):  
Building Materials ◽  
Space Shuttle ◽  
Renewable Energy Sources ◽  
Transportation Systems ◽  
Synthetic Fuels ◽  
Public And Private ◽  
Policy System ◽  
Home Building ◽  
Automobile Engines ◽  
Civilian Defense

Political scientists are increasingly interested in understanding policymaking in civilian, defense and space technologies. The answer to the question why this is, is found partly in the emergence of the policy field itself, and partly in the enormously expanded role that government stimulus of technological innovation is playing in the public and private sectors. A listing of some recent programs — breeder and fusion reactor R&D, the space shuttle, windmill farm demonstration programs, synthetic fuels programs, and dial-a-ride transportation systems — gives some indication of the scope of federal involvement, and points up some of the implications that this enlarged role has for the student of public policy. Why, for instance, has government elected to stimulate innovations in certain technologies and not others? Who are the key actors shaping the policymaking process in R&D? Are their gaps in federal efforts? Is the policy system responding effectively to needs for renewable energy sources, alternative home building materials, gasoline-efficient automobile engines, etc?

scholarly journals Testing a Gypsum Composite Based on Raw Gypsum with a Direct Admixture of Paraffin and Polymer to Improve Thermal Properties

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3241
Author(s):  
Krzysztof Powała ◽  
Andrzej Obraniak ◽  
Dariusz Heim
Keyword(s):  
Thermal Conductivity ◽  
Heat Capacity ◽  
Thermal Properties ◽  
Phase Change ◽  
Large Scale ◽  
Building Materials ◽  
Residential Buildings ◽  
Energy Performance ◽  
Polymer Content ◽  
Volumetric Heat Capacity

The implemented new legal regulations regarding thermal comfort, the energy performance of residential buildings, and proecological requirements require the design of new building materials, the use of which will improve the thermal efficiency of newly built and renovated buildings. Therefore, many companies producing building materials strive to improve the properties of their products by reducing the weight of the materials, increasing their mechanical properties, and improving their insulating properties. Currently, there are solutions in phase-change materials (PCM) production technology, such as microencapsulation, but its application on a large scale is extremely costly. This paper presents a solution to the abovementioned problem through the creation and testing of a composite, i.e., a new mixture of gypsum, paraffin, and polymer, which can be used in the production of plasterboard. The presented solution uses a material (PCM) which improves the thermal properties of the composite by taking advantage of the phase-change phenomenon. The study analyzes the influence of polymer content in the total mass of a composite in relation to its thermal conductivity, volumetric heat capacity, and diffusivity. Based on the results contained in this article, the best solution appears to be a mixture with 0.1% polymer content. It is definitely visible in the tests which use drying, hardening time, and paraffin absorption. It differs slightly from the best result in the thermal conductivity test, while it is comparable in terms of volumetric heat capacity and differs slightly from the best result in the thermal diffusivity test.

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