scholarly journals The increase in energy efficiency of residential buildings of military towns

2019 ◽  
Vol 110 ◽  
pp. 02144 ◽  
Author(s):  
Olga Gamayunova ◽  
Anton Radaev ◽  
Mikhail Petrichenko ◽  
Ekaterina Dmitrieva
Keyword(s):  
Energy Efficiency ◽  
Thermal Protection ◽  
Residential Buildings ◽  
Payback Period ◽  
Residential Construction ◽  
Regulatory Requirements ◽  
Apartment Buildings ◽  
Selection Of

Most of the residential multi-apartment buildings in use in our country do not meet modern regulatory requirements for the level of thermal protection of external enclosing structures. Such buildings require renovation. The objects of the research are residential buildings of KPD-4570 series, which are a typical series of buildings for military towns. The options for improving the energy efficiency of residential construction with the help of selection of heaters that meet the requirements for thermal protection of buildings are proposed. The method of calculating the discounted payback period for insulation costs is presented.

scholarly journals Concentrating Solar Collectors for a Trigeneration System—A Comparative Study

2020 ◽  
Vol 10 (13) ◽  
pp. 4492
Author(s):  
Evangelos Bellos ◽  
Christos Tzivanidis
Keyword(s):  
Energy Efficiency ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Payback Period ◽  
Weather Data ◽  
Parabolic Trough ◽  
Efficient Technology ◽  
System A ◽  
Linear Fresnel Reflector ◽  
Selection Of

The objective of this study is the investigation of different solar concentrating collectors for application in a trigeneration system. Parabolic trough collectors, linear Fresnel reflectors and solar dishes are the examined solar concentrating technologies in this work. The trigeneration unit includes an organic Rankine cycle coupled with an absorption heat machine that operates with LiBr/water. The analysis is performed throughout the year by using the weather data of Athens in Greece. The results of this work indicate that the selection of parabolic trough collectors is the best choice because it leads to the maximum yearly system energy efficiency of 64.40% and to the minimum simple payback period of 6.25 years. The second technology is the solar dish with the energy efficiency of 62.41% and the simple payback period of 6.95 years, while the linear Fresnel reflector is the less efficient technology with the energy efficiency of 35.78% and with a simple payback period of 10.92 years. Lastly, it must be stated that the thermodynamic investigation of the system is performed with a created model in Engineering Equation Solver, while the dynamic analysis is performed with a code in the programming language FORTRAN.

Optimization of Energy Efficiency of Residential Buildings Built of Bearing Three-Dimensional Blocks

2019 ◽  
pp. 23-27
Keyword(s):  
Energy Efficiency ◽  
Thermal Imaging ◽  
Control Method ◽  
Thermal Protection ◽  
Residential Buildings ◽  
Three Dimensional ◽  
Heat Fluxes ◽  
Point Of View ◽  
Transfer Resistance ◽  
Full Scale Tests

The article discusses the analysis of volume-block housing construction from the point of view of thermal protection of buildings. The results of full-scale tests on quality control of heat-protective properties of external walls and heat-accumulating ability of the object, on control of air permeability of the enclosing structures are presented. The multiplicity of air exchange in buildings made of volumetric blocks has been established. The estimation of the reduced heat transfer resistance of the exterior wall panel in natural conditions is made. A method of increasing the energy efficiency of houses of this type is proposed. During instrumental examination of the building, the method of complex thermal imaging control combining the advantages of the thermal imaging control method, making it possible to contactless record the distribution of radiation temperature on the surface in the field of view of the thermal imaging camera and high accuracy of contact methods for measuring temperature and heat fluxes, was used. Conducting thermal imaging of the outer and inner surfaces of the enclosing structure, we obtain the thermogram: two-dimensional images of the examined surfaces, where the color corresponds to the temperature value determined by the temperature scale of the thermogram. This thermogram makes it possible to conduct a detailed and reliable analysis of the state of the structure and its behavior in dynamics.

Research on Green Residential Buildings Based on Energy Efficiency and Renewable Energy

2013 ◽  
Vol 361-363 ◽  
pp. 331-334 ◽  
Author(s):  
Biao Hu ◽  
Wen Peng Sun
Keyword(s):  
Economic Growth ◽  
Energy Efficiency ◽  
Renewable Energy ◽  
Driving Force ◽  
Residential Buildings ◽  
Construction Materials ◽  
Residential Construction ◽  
Existing Problems ◽  
Green Housing ◽  
Article Analysis

Recent years, China's government looks real estate as the main driving force to promote the economic growth. However, due to the using construction materials have such characteristics as non-renewable and not saving, the environment bear severe load. The article analysis a specific of typical residential construction, drawing their material existing problems and proposing the introduction of the concept of green housing, which can crack the problems.

scholarly journals Introduction of Norms for Air Exchange in Rooms and Energy Efficiency of Residential Buildings

2018 ◽  
Vol 17 (4) ◽  
pp. 306-313
Author(s):  
L. V. Borukhava ◽  
A. S. Shybeka
Keyword(s):  
Energy Efficiency ◽  
Heat Balance ◽  
Thermal Protection ◽  
Residential Buildings ◽  
Combustion Process ◽  
Residential Area ◽  
Heat Losses ◽  
The Given ◽  
Air Exchange

Energy saving policy conducted all over the world and in Belarus, particularly, leads to revision of technical standard and legal acts on thermal protection of buildings. Gradual increase of resistance to heat transfer of enclosing structures reduces transmission heat losses however expenses on infiltration air heating remain unchangeable. Due to this their portion in overall heat balance of residential buildings is gradually increasing: up to thermal rehabilitation of a building the portion constitutes 30 %, after this process the portion is equal to 53 %. In order to find methods for reduction of heat losses the paper considers an origin of the current standard for inlet air which is equal to 3 m³/h per 1 m² of residential area. It has been shown that the given value has been determined on the assumption of air exchange which is required for assimilation of carbon dioxide and residential area standard per one person. The required air exchange can be reduced up to 1.5 m³/(h×m²) due to improvement of population living conditions and increase in provision of residential area. Calculations have also shown that the given reduction makes it possible to enhance energy efficiency class of a building and decrease portion of heat losses on heating inlet air in overall heat balance. The paper has also revealed that rational light location on both sides permits to reduce a specific index of heat energy consumption for heating and ventilation of a residential building. Determination of outlet air consumption for kitchens has been considered simultaneously with determination of inlet air consumption. It has been ascertained that in order to support combustion process and removal of combustion products consumption of outlet air must constitute 10–20 m³/h according to type of gas stove. Due to the fact that windows can not support the proposed and existing air exchanges they must be completed with plenum valves.

scholarly journals Barriers for Use of Wood in Architecture: The Latvian Case

2017 ◽  
Vol 13 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Antra Viļuma ◽  
Uģis Bratuškins
Keyword(s):  
Focus Group ◽  
Building Material ◽  
Northern Europe ◽  
Residential Construction ◽  
Timber Structures ◽  
Eu Countries ◽  
Apartment Buildings ◽  
Baltic Countries ◽  
Study Results ◽  
Selection Of

AbstractWood in general is a traditional building material in Northern Europe including Latvia and other Baltic countries, but nowadays it is used less in Latvia than in other EU countries. There are many forests in Latvia and a well-developed timber industry. Latvian society is enthusiastic about eco-materials, and qualified architects and engineers are ready to work with timber structures. However, wood is mainly used for small buildings and residential construction, but minimally in public and multi-apartment buildings. The study was carried out among architects and other stakeholders in Latvia to analyze their impact on the selection of building material. Thirty-eight interviews were conducted, questionnaire among 73 respondents carried out, and discussion in a focus group was held to find out the main reason and barriers for using wood for buildings in Latvia less than in other EU countries. During the research the main influencing factors for choosing wood constructions were identified and seven main barriers formulated. The study results were compared with the results of similar studies in other countries. Two of the seven barriers in Latvia – stereotypes and legislation – were not mentioned in other studies, nevertheless, these are the most frequently mentioned obstacles in the Latvian case.

Energy Efficiency of Facades at Major Repairs of Buildings

2014 ◽  
Vol 633-634 ◽  
pp. 991-996 ◽  
Author(s):  
Nikolai Vatin ◽  
Alexander S. Gorshkov ◽  
Darya Nemova ◽  
Darya Tarasova
Keyword(s):  
Energy Efficiency ◽  
Thermal Insulation ◽  
Calculation Method ◽  
Thermal Protection ◽  
Payback Period ◽  
Climatic Variables ◽  
Protection Level ◽  
Protection Measures

The article describes the calculation method of the payback period for the thermal protection measures. These measures are aimed at the increasing of thermal protection level achieved by the additional thermal insulation of the existing building's walls. The example of the calculation for the certain settlement with the specified climatic variables is also provided in the article.

The Energy Efficiency of Residential Buildings with Light Walling

2014 ◽  
Vol 941-944 ◽  
pp. 814-820 ◽  
Author(s):  
Daria Vladimirovna Petrosova ◽  
Dmitri Vadimovich Petrosov
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Thermal Protection ◽  
Residential Buildings ◽  
High Heat ◽  
Main Direction ◽  
Shielding Properties ◽  
Heat Shielding

The main direction of energy saving in construction is the construction of buildings with high heat-shielding properties walling. In connection with this widespread walling using efficient insulation, allow to increase thermal protection of buildings.

scholarly journals Energy efficiency of industrially made buildings influenced by thermal properties of façades

2014 ◽  
Vol 18 (2) ◽  
pp. 615-630 ◽  
Author(s):  
Mirjana Laban ◽  
Radomir Folic
Keyword(s):  
Energy Efficiency ◽  
Thermal Properties ◽  
Thermal Protection ◽  
Residential Buildings ◽  
Building Codes ◽  
Energy Losses ◽  
Building Typology ◽  
European Standards ◽  
Novi Sad ◽  
Heating Up

The main objective of this paper is to evaluate the thermal properties of existing residential buildings built in industrial manner in Novi Sad from 1960 to 1990 based on building typology. Each of three analyzed building type has its characteristic fa?ade, with thermal performances divided into periods according to the development of domestic thermal protection building codes. The necessary layer of subsequent insulation is determined by calculations in order to comply with European standards, also applied in Serbia from 2012. The proposed method of periodization simplifies the process of thermal performance assessment and it was checked through the case studies. Evaluation of energy consumption rationalization has been done through comparative analysis of energy losses. Based on the most common energy rehabilitation measures applied in Serbia, it was estimated that it was possible to reduce the energy losses in heating up to 60%.

scholarly journals RESERVES FOR INCREASING ENERGY EFFICIENCY OF APARTMENT BUILDINGS DURING A CAPITAL REPAIR

2021 ◽  
Vol 9 (1) ◽  
pp. 31-35
Author(s):  
Oleg Korol ◽  
Andrej Plotnikov
Keyword(s):  
Energy Efficiency ◽  
Russian Federation ◽  
Energy Efficient ◽  
Residential Buildings ◽  
Regulatory Framework ◽  
Capital Repair ◽  
Apartment Buildings ◽  
The Russian Federation ◽  
Efficient Measures

The problem of energy efficiency in multi-apartment residential buildings (hereinafter - MKB) arises as a result of changes in the legal and regulatory framework of the Russian Federation, which is adapting to it. In this regard, it becomes necessary to bring the condition of buildings in line with the newly introduced requirements, including those related to energy efficiency. The solution to this problem can be achieved due to the identified organizational, technical and economic reserves and energy efficient measures implemented in practice during the operation and overhaul of MKB.

Development of Energy-Saving Measures for the Multi-Story Apartment Buildings

2015 ◽  
Vol 725-726 ◽  
pp. 1408-1416 ◽  
Author(s):  
Nikolay Vatin ◽  
Darya Nemova ◽  
Yulia Ibraeva ◽  
Philipp Tarasevskii
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Structural Analysis ◽  
Residential Buildings ◽  
Residential Building ◽  
Economic Feasibility ◽  
Apartment Buildings ◽  
Consumption Energy ◽  
Energy Audits ◽  
Technical Measures

The paper presents a structural analysis of the energy consumption of multi-story residential building, obtained based on analysis of the actual data flow and heat consumption, energy audits and data for assessing the state of the energy efficiency of residential buildings. The paper suggests techniques for improving energy efficiency. With the settlement proposed in the article shows the need and economic feasibility of the implementation of organizational and technical measures to improve the energy efficiency of residential buildings.

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