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.

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.

scholarly journals Strategies of Design Concepts and Energy Systems for Nearly Zero-Energy Container Buildings (NZECBs) in Different Climates

Buildings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 364
Author(s):  
Johannes Koke ◽  
André Schippmann ◽  
Jingchun Shen ◽  
Xingxing Zhang ◽  
Peter Kaufmann ◽  
...  
Keyword(s):  
Renewable Energy Sources ◽  
Energy Systems ◽  
Design Guidelines ◽  
Single Family ◽  
Design Strategies ◽  
Zero Energy ◽  
Climate Zones ◽  
Self Sufficiency ◽  
Family House ◽  
Different Climates

Container-based lightweight buildings offer a high ecologic and economic potential when they are designed as nearly zero-energy container buildings (NZECBs). Thus, they are relevant to energy transition in achieving an almost climate-neutral building stock. This paper describes and applies design strategies for suitable building concepts and energy systems to be used in NZECBs for different climates. Therefore, different applications in representative climatic zones were selected. Initially, the global climate zones were characterized and analyzed with regard to their potential for self-sufficiency and renewable energies in buildings. The design strategies were further developed and demonstrated for three cases: a single-family house in Sweden, a multi-family house in Germany, and a small school building in rural Ethiopia. For each case, design guidelines were derived and building concepts were developed. On the basis of these input data, various energy concepts were developed in which solar and wind energy, as well as biomass, were integrated as renewable energy sources. All the concepts were simulated and analyzed with the Polysun® software. The various approaches were compared and evaluated, particularly with regard to energy self-sufficiency. Self-sufficiency rates up to 80% were achieved. Finally, the influence of different climate zones on the energy efficiency of the single-family house was studied as well as the influence of the size of battery storage and insulation.

scholarly journals Different heating systems for single family house: Energy and economic analysis

2016 ◽  
Vol 20 (suppl. 1) ◽  
pp. 309-320 ◽  
Author(s):  
Valentina Turanjanin ◽  
Biljana Vucicevic ◽  
Marina Jovanovic
Keyword(s):  
Energy Consumption ◽  
Economic Analysis ◽  
Renewable Energy Sources ◽  
Biomass Combustion ◽  
Space Heating ◽  
Single Family ◽  
Building Stock ◽  
Simulation Code ◽  
Heating Systems ◽  
Family House

The existing building stock energy consumption accounts for about 38% of final energy consumption in Republic of Serbia. 70% of that energy is consumed by residential sector, mostly for space heating. This research is addressed to the single family house building placed in the Belgrade city. The house has ground and first floor with total heating area of 130 m2 and pellet as space heating source. The aim of this paper is to evaluate energy and economic analysis for different heating systems. Several homeheating were compared: Option 1 (biomass combustion boiler using pellet as a fuel), Option 2 (gas combustion boiler) and Option 3 (heat pump). The building performance was evaluated by TRNSYS 17 simulation code. Results show estimated savings using renewable energy sources.

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 How to Achieve Positive Energy Districts for Sustainable Cities: A Proposed Calculation Methodology

2021 ◽  
Vol 13 (2) ◽  
pp. 710
Author(s):  
Andrea Gabaldón Moreno ◽  
Fredy Vélez ◽  
Beril Alpagut ◽  
Patxi Hernández ◽  
Cecilia Sanz Montalvillo
Keyword(s):  
Energy Balance ◽  
Energy Performance ◽  
Primary Energy ◽  
District Level ◽  
Design Stage ◽  
Positive Energy ◽  
Energy Technologies ◽  
Energy Factors ◽  
Calculation Methodology ◽  
Current Standards

In this paper, a methodology for calculating the energy balance at the district level and energy performance of those districts aspiring to become a Positive Energy District (PED) is proposed. PEDs are understood as districts that achieve a positive energy balance on an annual basis by means of exporting more energy than is consumed within their limits. The main issue to standardize the concept, besides which characteristics should be considered, is that current standards to calculate an energy balance are not applied at the district level. This paper reviews the current standards and adapts them to propose an energy balance calculation methodology. Calculation of an energy balance at the district level is complex since it includes several parameters, such as which loads (or elements) should be included, which renewable energy technologies should be considered on-site production, and which primary energy factors should be used. The proposed methodology is thought to help cities at the design stage of a district and to evaluate its annual energy balance. The methodology is performed in eight steps, and all the needed assumptions that affect the calculation of the annual energy balance are discussed in each step.

scholarly journals Radon variability due to floor level in two typical residential buildings in Serbia

Nukleonika ◽  
2020 ◽  
Vol 65 (2) ◽  
pp. 121-125 ◽  
Author(s):  
Vladimir Udovicic ◽  
Nikola Veselinovic ◽  
Dimitrije Maletic ◽  
Radomir Banjanac ◽  
Aleksandar Dragic ◽  
...  
Keyword(s):  
Building Materials ◽  
Indoor Radon ◽  
Residential Building ◽  
Ground Level ◽  
Single Family ◽  
Floor Level ◽  
High Rise ◽  
Radon Variability ◽  
Radon Measurements ◽  
Family House

AbstractIt is well known that one of the factors that influence the indoor radon variability is the floor level of the buildings. Considering the fact that the main source of indoor radon is radon in soil gas, it is expected that the radon concentration decreases at higher floors. Thus at higher floors the dominant source of radon is originating from building materials, and in some cases there may be deviations from the generally established regularity. In such sense, we chose one freestanding single-family house with loft and other 16-floor high-rise residential building for this study. The indoor radon measurements were performed by two methods: passive and active. We used passive devices based on track-etched detectors: Radtrak2 Radonova. For the short-term indoor radon measurements, we used two active devices: SN1029 and SN1030 (manufactured by Sun Nuclear Corporation). The first device was fixed in the living room at the ground level and the second was moved through the floors of the residential building. Every measuring cycle at the specified floor lasted seven days with the sampling time of 2 h. The results show two different indoor radon behaviours regarding radon variability due to floor level. In the single-family house with loft we registered intense difference between radon concentration in the ground level and loft, while in the high-rise residential building the radon level was almost the same at all floors, and hence we may conclude that radon originated mainly from building materials.

scholarly journals APPLICATION OF LCA AND BIM METHODS IN THE ARCHITECTURE OF A SINGLE-FAMILY HOUSE IN THE CHANGING CLIMATE OF WESTERN POMERANIA

space&FORM ◽  
2020 ◽  
Vol 2020 (44) ◽  
pp. 45-70
Author(s):  
Piotr Gradziński ◽  
Keyword(s):  
Energy Consumption ◽  
Building Materials ◽  
Single Family ◽  
Materials Selection ◽  
Architectural Form ◽  
Changing Climate ◽  
Family Housing ◽  
Materials Used ◽  
Technical Solutions ◽  
Family House

The paper deals concerns the problem of energy optimization of single-family housing in Poland in Western Pomerania. The problem is considered because of the changing climate in the region and the consequences. This results in the search for changes in the architectural paradigm of singlefamily houses design and the use of appropriate technical solutions that minimize the environmental impact of these buildings. The problem of changes is considered in the category of building materials selection and the architectural form shape. In the analytical part, the following analyzes were carried out: in terms of the structures of the building in minimizing CO2 emissions and energy consumption of the building materials used and environmental factors (light, shade, wind) influencing energy consumption through the building's shape in the region.

scholarly journals ANALYSIS OF ENERGY DEMAND FOR LOW-ENERGY MULTI-DWELLING BUILDINGS OF DIFFERENT CONFIGURATION / SKIRTINGOS KONFIGŪRACIJOS MAŽAENERGIŲ DAUGIABUČIŲ PASTATŲ ENERGIJOS POREIKIŲ TYRIMAS

2014 ◽  
Vol 6 (4) ◽  
pp. 414-420 ◽  
Author(s):  
Giedrė Streckienė ◽  
Elena Polonis
Keyword(s):  
Energy Demand ◽  
Energy Savings ◽  
Energy Performance ◽  
Primary Energy ◽  
Low Energy ◽  
Single Family ◽  
Energy Performance Of Buildings ◽  
New Energy ◽  
Concrete Blocks ◽  
Family House

To meet the goals established by Directive 2010/31/EU of the European Parliament and of the Council on the energy performance of buildings, the topics of energy efficiency in new and old buildings must be solved. Research and development of new energy solutions and technology are necessary for increasing energy performance of buildings. Three low-energy multi-dwelling buildings have been modelled and analyzed in the presented study. All multi-dwelling houses are made of similar single-family house cells. However, multi-dwelling buildings are of different geometry, flat number and height. DesignBuilder software was used for simulating and determining heating, cooling and electricity demand for buildings. Three different materials (silicate, ceramic and clay concrete blocks) as bearing constructions of external walls have been analyzed. To decrease cooling demand for buildings, the possibility of mounting internal or external louvers has been considered. Primary energy savings for multi-dwelling buildings using passive solar measures have been determined. Norint pasiekti Europos Sąjungos direktyvos 2010/31/EB tikslus dėl pastatų energinio naudingumo, reikia spręsti energijos efektyvumo klausimus naujų ir esamų pastatų srityje. Naujų energinių sprendinių ir technologijų tyrimai bei plėtra būtini norint padidinti pastatų energinį naudingumą. Šiame tyrime modeliuojami ir analizuojami trys mažaenergiai daugiabučiai pastatai. Visi jie sudaryti iš vienodo dydžio butų, tačiau pastatai tarpusavyje skiriasi geometrija, butų skaičiumi ir aukštingumu. Siekiant nustatyti ir išnagrinėti pastatų šilumos, vėsos ir elektros energijos poreikius, naudotasi DesignBuilder programa. Visų daugiabučių pastatų atvejais nagrinėjamos trys skirtingos išorės sienų laikančiųjų konstrukcijų medžiagos: silikatiniai, keraminiai ir keramzitbetonio blokeliai. Siekiant sumažinti vėsos poreikį pastatuose taip pat buvo analizuojama galimybė sumontuoti vidines arba išorines žaliuzes. Nustatyti sutaupytieji pirminės energijos kiekiai daugiabučių pastatų atvejams taikant pasyviąsias apsaugos nuo saulės priemones.

Residential Space-Cooling Energy Use

2017 ◽  
Vol 2 (8) ◽  
pp. 45
Author(s):  
Alamah Misni
Keyword(s):  
Building Materials ◽  
Energy Use ◽  
Publishing House ◽  
Single Family ◽  
Air Conditioners ◽  
Space Cooling ◽  
International Publishing ◽  
Residential Space ◽  
Family House ◽  
Open Access Article

This study's purpose is to evaluate air-conditioning energy consumption by conducting interviews and recording data from 50 single-family houses. All study houses applying similar styles of tropical architecture and methods of building construction, with the U-values for building materials having moderate levels of thermal resistance. The finding reveals that the majority of households spends more than 37% of their energy costs on cooling during the raining season and estimating to increase by the drought seasons. The greater use of air-conditioners have resulted in an increased purchasing power of the population.Keywords: Single-family house; thermal performance; landscape design; evapotranspirationeISSN: 2398-4279 © 2017. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.

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