scholarly journals The effect of current thermomodernization projects on energy performance of multi-family residential buildings and perspectives for new regeneration projects: the case of a housing estate in Lublin

2010 ◽  
Vol 7 (2) ◽  
pp. 089-103
Author(s):  
Anna Ostańska
Keyword(s):  
Energy Saving ◽  
Housing Stock ◽  
Residential Buildings ◽  
Precast Concrete ◽  
Holistic Approach ◽  
Energy Performance ◽  
Technical Condition ◽  
Housing Estate ◽  
Pilot Studies ◽  
Concrete Plate

Managers of large housing estates whose stocks consist mainly of precast concrete plate buildings of 1970ies, due to their sheer size and technical condition far from being perfect, are especially concerned with searching for solutions that would reduce energy consumption. Thermal modernization projects provide an opportunity to adopt a holistic approach to the problem of obsolescence of this relatively new housing stock and to consider it in terms of urban regeneration. The paper describes the energy saving policies in Poland and results of pilot studies of Building Research Institute (ITB) aimed at defining optimal scope of thermomodernization of precast concrete plate housing. The paper investigates into the effects of thermomodernization of a particular, though typical, housing estate in Lublin in order to give grounds for future actions in the field of energy saving measures.

Energy Saving Policies for Housing Based on Wrong Assumptions?

2014 ◽  
Vol 39 (2) ◽  
pp. 78-83
Author(s):  
Henk Visscher ◽  
Dasa Majcen ◽  
Laure Itard
Keyword(s):  
Energy Saving ◽  
Energy Demand ◽  
Energy Use ◽  
Housing Stock ◽  
Energy Performance ◽  
Research Projects ◽  
Building Stock ◽  
Energy Saving Potential ◽  
Energy Performance Of Buildings ◽  
New Buildings

The energy saving potential of the building stock is large and considered to be the most cost efficient to contribute to the CO2 reduction ambitions. Severe governmental policies steering on reducing the energy use seem essential to stimulate and enforce the improvement of the energy performance of buildings with a focus on reducing the heating and cooling energy demand. In Europe the Energy Performance of Buildings Directive is a driving force for member states to develop and strengthen energy performance regulations for new buildings and energy certificates for the building stock. The goals are to build net zero energy new buildings in 2020 and to reach a neutral energy situation in the whole stock by 2050. More and more research projects deliver insight that the expected impact of stricter regulations for newly built houses is limited and the actual effects of energy savings through housing renovations stay behind the expectations. Theoretical energy use calculated on base of the design standard for new houses and assessment standards for Energy Performance Certificates of existing dwellings differ largely from the measured actual energy use. The paper uses the findings of some Post Occupancy Evaluation research projects. Is the energy saving potential of the housing stock smaller than expected and should we therefore change the policies?

Assessment of energy performance using bottom-up method

2019 ◽  
Vol 38 (1) ◽  
pp. 192-216
Author(s):  
Khadidja El-Bahdja Djebbar ◽  
Souria Salem ◽  
Abderrahmane Mokhtari
Keyword(s):  
Urban Areas ◽  
Housing Stock ◽  
Residential Buildings ◽  
Energy Performance ◽  
Bottom Up ◽  
Content Type ◽  
Consumption Index ◽  
Physical Information ◽  
Thermal Simulations ◽  
Existing Housing

Purpose The purpose of this paper is to analyze energy performance of the multi-storey buildings built in the city of Tlemcen between 1872 and 2016. Design/methodology/approach A diagnosis based on a bottom-up methodology, using statistical techniques and engineering, has been developed and applied. To do this, demand condition analysis was conducted using a data collection survey on a sample of 100 case studies. Physical characteristics of the buildings have been determined through the archetype by period. This serves to define the strengths and weaknesses of buildings as energy consumers. Findings The obtained results showed that dwellings built between 1872 and 1920 offer better energy performance with a consumption index close to 130kWh/m2/year and this compared to the five periods considered. For dwellings built between 1974 and 1989, energy consumption is higher with an index approaching 300kWh/m2/year, thus qualifying the buildings of this period as energy intensive. Originality/value A database is established to collect physical information on the existing housing stock and thus allow their classification vis-à-vis of the energy label. This study is part of a research project aimed at evaluating and determining optimal measures for energy rehabilitation of multi-family buildings in Tlemcen. Thermal rehabilitation solutions are proposed using thermal simulations, in the following studies, to improve thermal performance of existing buildings. This study constitutes the first step of a roadmap applicable to other cities constituting climatic zones in Algeria. This helps to enrich the Algerian thermal regulation in thermal rehabilitation of existing residential buildings and conception of new ones, in urban areas with a similar climate.

scholarly journals Modeling Nearly Zero Energy Buildings for Sustainable Development in Rural Areas

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2593 ◽  
Author(s):  
Reza Khakian ◽  
Mehrdad Karimimoshaver ◽  
Farshid Aram ◽  
Soghra Zoroufchi Benis ◽  
Amir Mosavi ◽  
...  
Keyword(s):  
Energy Saving ◽  
Rural Areas ◽  
Residential Buildings ◽  
Building Design ◽  
Energy Performance ◽  
Payback Period ◽  
Zero Energy ◽  
Multiple Parameters ◽  
Shading Devices ◽  
The Impact

The energy performance of buildings and energy-saving measures have been widely investigated in recent years. However, little attention has been paid to buildings located in rural areas. The aim of this study is to assess the energy performance of two-story residential buildings located in the mountainous village of Palangan in Iran and to evaluate the impact of multiple parameters, namely building orientation, window-to-wall ratio (WWR), glazing type, shading devices, and insulation, on its energy performance. To attain a nearly zero energy building design in rural areas, the building is equipped with photovoltaic modules. The proposed building design is then economically evaluated to ensure its viability. The findings indicate that an energy saving of 29% can be achieved compared to conventional buildings, and over 22 MWh of electricity can be produced on an annual basis. The payback period is assessed at 21.7 years. However, energy subsidies are projected to be eliminated in the near future, which in turn may reduce the payback period.

Methods of the Numerical Simulation of Residential Buildings Lifecycle for Evaluating the Effectiveness of Energy-Saving Solutions

2016 ◽  
Vol 17 ◽  
pp. 111-116
Author(s):  
Svetlana G. Sheina ◽  
Lidia V. Girya ◽  
Polina V. Fedyaeva
Keyword(s):  
Numerical Simulation ◽  
Energy Saving ◽  
Residential Buildings ◽  
Technical Condition ◽  
Federal Law ◽  
Apartment Buildings ◽  
Building Components ◽  
The Russian Federation ◽  
Regional Programs

This article considers the problem of evaluating the effectiveness of energy-saving solutions in the aspect of the task to determine the timing of capital repairs of apartment buildings. The method of numerical simulation lifecycle of buildings is offered as a solution to this problem. It is proved that implementation of comprehensive overhauls of using energy-saving technologies increases the period of effective operation of the property as a whole, and in future - to lower operating costs. In order to enhance the safety of housing and improve the quality of housing, a new overhaul system of apartment buildings was adopted. Federal Law No. 271-FZ [1] obliges all the entities of the Russian Federation to adopt regional programs, which set deadlines of overhauls in all apartment houses. Analysis of the main program provisions showed that the overhaul term criteria do not include the results of monitoring the technical condition of buildings (physical deterioration of each component and engineering equipment), as well as the rate of the wear of building components by the time of repair and prediction of these indicators in the future during the lifecycle.

scholarly journals Seismic resistance and endurance of the typical residential buildings in Sochi

2018 ◽  
Vol 193 ◽  
pp. 03014 ◽  
Author(s):  
Elena Yurchenko ◽  
Alexander Volkov ◽  
Asthik Kakosyan
Keyword(s):  
Housing Stock ◽  
Residential Buildings ◽  
Seismic Intensity ◽  
Technical Condition ◽  
Seismic Retrofitting ◽  
Subtropical Climate ◽  
State University ◽  
Structural Elements ◽  
Housing Density ◽  
Design Life

The typical residential buildings of the 1960-90s are a significant part of Sochi’s housing stock, similar to other cities in Russia. Nowadays they are in the half of their design life. The purpose of the study is to determine the reliability and endurance of operation under conditions of seismic intensity degree VIII by the MSK-64 scale (Medvedev-Sponheuer-Karnik scale), the humid subtropical climate, Sochi’s housing density, and the rugged terrain. Studies of the technical condition of buildings and facilities have been conducted in Sochi State University for 20 years. According to the building codes, the categories of the technical state of both structural elements and building construction were defined, reliability values were calculated, and types of defects were identified. Methods of conducting current repairs and local seismic retrofitting to achieve the characteristic value of buildings’ endurance were proposed.

scholarly journals Proposal for Modernisation of Large Block System Buildings (Lbs) - Facades – Lublin University of Technology

2021 ◽  
Vol 31 (3) ◽  
pp. 235-250
Author(s):  
Alina Miedviedieva Wright ◽  
Anna Ostańska
Keyword(s):  
Housing Stock ◽  
Residential Buildings ◽  
Precast Concrete ◽  
Large Block ◽  
Block System ◽  
University Of Technology ◽  
Large Housing Estates ◽  
Architectural Barriers ◽  
Housing Estates

Abstract The over 40-years-old housing stock from the industrialized mass housing era is today functionally deficient and does not meet the current needs of residents. In particular, there are numerous architectural barriers, the systems are worn and obsolete, and the number of housing types is very limited. Examples of the modernization of multi-story residential buildings (the article presents those from Russia and Ukraine) confirm that this problem is universal, and a significant improvement of the building’s. utility value can be achieved through a relatively small modification of the building fabric: precast concrete structures of the buildings prove to be flexible enough to accommodate deep changes. The authors present a concept of modernization of a building erected in a “large block” system, typical for the Polish housing of the 1970s in many cities. The case study concerns a particular building located in Lublin in one of the large housing estates – the concept of its modernization is compatible with the local spatial development plan, the proposed solutions are architecturally coherent and technically feasible.

scholarly journals Measures to Achieve the Energy Efficiency Improvement Targets in the Multi-Apartment Residential Sector

2020 ◽  
Vol 57 (6) ◽  
pp. 40-52
Author(s):  
M. Upitis ◽  
I. Amolina ◽  
I. Geipele ◽  
N. Zeltins
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Savings ◽  
Residential Buildings ◽  
Energy Performance ◽  
The European Union ◽  
Middle Income ◽  
Structural Funds ◽  
Energy Management Systems ◽  
Energy Efficiency Improvement

AbstractDirective (EU) 2018/2002 of the European Parliament and of the Council amending Directive 2012/27/EU on energy efficiency sets a target of 32.5 % energy efficiency to be achieved by 2030, with a possible upward revision in 2023. The directive also stipulates that the obligation to achieve annual energy savings must continue to be met after 2020. In addition, a revised directive on the energy performance of buildings was adopted in May 2018. It includes measures to speed up the renovation of buildings and the transition to more energy-efficient systems, as well as to improve the energy efficiency of new buildings, thus using smart energy management systems [1].Buildings consume the most energy and have the greatest energy saving potential. They are therefore crucial to achieving the European Union’s energy saving targets. The EU allocated around 14 billion EUR to improve the energy efficiency of buildings in the period of 2014–2020, of which 4.6 billion EUR was intended for residential buildings. In addition, the Member States have earmarked 5.4 billion EUR of public co-financing for the improvement of all types of buildings, of which around 2 billion EUR is allocated to residential buildings.Multi-apartment residential buildings in Latvia are in a technically unsatisfactory condition. In Latvia, the service life of multi-apartment residential buildings has been artificially extended. In addition, there is also the problem of reduced construction quality. Housing problems affect all layers of society, but they are most acute for low- and middle-income people.The aim of the research is to study, using the co-financing of the European Union Structural Funds, the activities performed during the renovation process of multi-apartment residential buildings in Latvia and to identify the shortcomings.

scholarly journals A comparative benchmarking study of multi-storey residential buildings in two periods of energy saving efforts: the 1980s and the 2010s

2021 ◽  
Vol 2069 (1) ◽  
pp. 012075
Author(s):  
O M Jensen ◽  
J Rose ◽  
J Kragh ◽  
C H Christiansen ◽  
M Grimmig ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Residential Buildings ◽  
Measurement Data ◽  
Building Energy ◽  
Energy Performance ◽  
Building Energy Performance ◽  
Heated Area ◽  
Energy Signature ◽  
Change Point Models

Abstract In 1990, Technological Institute (TI) in Denmark made a benchmarking study of 92 typical multi-storey buildings covering 23 000 dwellings. The study included measurement data from the 1970s and the years after the energy crises. This study showed that over a period of less than 20 years a significant reduction in energy consumption took place. In a new similar study, TI and Aalborg University have analysed 62 buildings covering 18 000 dwellings including measurement data from the last 20 years. This time, the data covers a period with an increasing focus on the carbon-emission impacts of energy consumption. As opposed to the first benchmarking study, the new 20-years study shows that the heat consumption has been almost constant over the last 20 years. This paper presents a comparative study of the two sets of measurements and evaluates energy saving efforts and individual building energy performance. Furthermore, the paper compares two different ways of deriving benchmarks from the data and demonstrates how utilizing change-point models/energy signature as opposed to the more traditional mean annual values per heated area, significantly increases the usability.

scholarly journals Top Energy Saver of the Year: Results of an Energy Saving Competition in Public Buildings

2020 ◽  
Vol 24 (3) ◽  
pp. 278-293
Author(s):  
Jan Kaselofsky ◽  
Ralf Schüle ◽  
Marika Rošā ◽  
Toms Prodaņuks ◽  
Anda Jekabsone ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Energy Use ◽  
Residential Buildings ◽  
Electricity Consumption ◽  
Energy Performance ◽  
Heat Consumption ◽  
The European Union ◽  
Public Building ◽  
Team Members

AbstractNon-residential buildings in the European Union consume more than one third of the building sector’s total. Many non-residential buildings are owned by municipalities. This paper reports about an energy saving competition that was carried out in 91 municipal buildings in eight EU member states in 2019. For each public building an energy team was formed. The energy teams’ activities encompassed motivating changes in the energy use behaviour of employees and small investments. Two challenges added an element of gamification to the energy saving competition. To assess the success of the energy saving competition, an energy performance baseline was calculated using energy consumption data of each public building from previous years. Energy consumption in the competition year was monitored on a monthly base. After the competition the top energy savers from each country were determined by the percentage-based reduction of energy consumption compared to the baseline. On average, the buildings had an electricity and heat consumption in 2019 that was about 8 % and 7 %, respectively, lower than the baseline. As an additional data source for the evaluation, a survey among energy team members was conducted at the beginning and after the energy competition. Support from superiors, employee interest and motivation and behaviour change as assessed by energy team members show a positive, if weak or moderate, correlation with changes in electricity consumption, but not with changes in heat consumption.

Organizational And Technological Preparation Of Measures To Ensure The Reliability Of Buildings

2020 ◽  
pp. 42-46
Keyword(s):  
Life Cycle ◽  
Housing Stock ◽  
Residential Buildings ◽  
Technical Condition ◽  
Regulatory Requirements ◽  
Current State ◽  
Technological Preparation ◽  
Methodological Principles ◽  
Technical Operation ◽  
Design And Construction

The reasons for the negative dynamics of the current state of the country's housing stock and, in particular, the growth of hazardous and dilapidated housing are analyzed. The analysis established that the main cause of the unsatisfactory technical condition of housing stock are huge difference in strength of structures, components and systems of residential buildings, along with the extremely low level of maintainability, poor maintenance, not compliant to regulatory requirements, insufficient volumes of capital repairs of residential buildings, both in the past and currently. The problems of ensuring the reliability and operational and technical suitability of residential buildings at all stages of the life cycle are considered. Conceptual approaches to creating a system of organizational and technological preparation of measures to ensure the reliability of residential buildings throughout the life cycle- from design and construction to disposal (demolition). Methods of economically justified reservation of reliability of structures, elements and systems of residential buildings at the design and construction stages are presented. The methodological principles of development in the design and estimate documentation of instructions for the organization of technical operation, as well as forms and methods of organizational and technological preparation of operation and capital repairs are described. The necessity to create a unified system of organizational and technological preparation of complexes of measures covering all stages of the life cycle of residential buildings, which will improve the state of the housing stock of our country, is shown.

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