Energy Savings Potential Analysis in Public Buildings – Hungary and Slovakia

2021 ◽  
Author(s):  
Katarína Korytárová
Keyword(s):  
Energy Savings ◽  
Public Buildings ◽  
Potential Analysis

scholarly journals Underfloor Heating Using Ceramic Thermal Panels and Solar Thermal Panels in Public Buildings in the Mediterranean: Energy Savings and Healthy Indoor Environment

2019 ◽  
Vol 9 (10) ◽  
pp. 2089 ◽  
Author(s):  
Víctor Echarri-Iribarren ◽  
Carlos Rizo-Maestre ◽  
José Luis Sanjuan-Palermo
Keyword(s):  
Energy Demand ◽  
Energy Savings ◽  
Capillary Tube ◽  
Lithium Bromide ◽  
Cooling Water ◽  
Solar Thermal ◽  
Convective System ◽  
Solar Panels ◽  
Public Buildings ◽  
One Year

Radiant floor air conditioning systems based on capillary tube mats, in addition to offering high comfort standards, generate significant energy savings. They allow the use of renewable energies such as thermal solar panels and combine them with solar cooling systems based on lithium chloride or absorption systems with lithium bromide in summer, cooling water down to 15–16 °C through solar thermal panel energy collection. Thus, in addition to energy savings from the transport of low water flows, annual energy demand is also reduced. This research analyses the application of thermal ceramic panels (TCP)—containing polypropylene (PPR) tube capillary mats—to public buildings in the Spanish Mediterranean. A case study of the Museum of the University of Alicante (MUA) is presented. Water was distributed individually from a split system heat pump inside the building combined with a thermal solar panel system on the roof. The MUA’s annual energy demand was quantified using thermal simulation tools and was monitored during the entire one-year cycle. Simulations were conducted both for the radiant floor system and an all-air conventional convective system, as well as with solar thermal panel applications. The reduction in annual energy demand was 24.91% when TCP panels are used on the floor. This is a considerable value, but lower than others results obtained in Central Europe due to the higher values of humidity. When solar thermal panels are installed on the rooftop the energy savings can increase to 60.70%.

ANALYSIS OF ENERGY EFFICIENCY IN PUBLIC BUILDINGS AFTER IMPLEMENTATION OF ENERGY SAVING MEASURES

2019 ◽  
pp. 314-320
Author(s):  
Ivan Binev
Keyword(s):  
Mathematical Model ◽  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Savings ◽  
Public Buildings ◽  
The Relationship

The report analyzes energy efficiency in public buildings. A mathematical model was developed describing the relationship between energy savings and heated space in buildings with energy saving measures implemented. The resulting model can be used to predict energy savings of buildings with an accuracy of 82%. The results facilitate the process of determining the energy savings of buildings in which energy-saving measures are to be implemented.

scholarly journals How to Prioritize Energy Efficiency Intervention in Municipal Public Buildings to Decrease CO2 Emissions? A Case Study from Italy

2020 ◽  
Vol 17 (12) ◽  
pp. 4434
Author(s):  
Filomena Pietrapertosa ◽  
Marco Tancredi ◽  
Michele Giordano ◽  
Carmelina Cosmi ◽  
Monica Salvia
Keyword(s):  
Energy Efficiency ◽  
Co2 Emissions ◽  
Energy Savings ◽  
Action Plan ◽  
The European Union ◽  
Public Buildings ◽  
Building Stock ◽  
End Use ◽  
Climate Crisis

The European Union 2050 climate neutrality goal and the climate crisis require coordinated efforts to reduce energy consumption in all sectors, and mainly in buildings greatly affected by the increasing temperature, with relevant CO2 emissions due to inefficient end-use technologies. Moreover, the old building stock of most countries requires suited policies to support renovation programs aimed at improving energy performances and optimize energy uses. A toolbox was developed in the framework of the PrioritEE project to provide policy makers and technicians with a wide set of tools to support energy efficiency in Municipal Public Buildings. The toolbox, available for free, was tested in the partners’ communities, proving its effectiveness. The paper illustrates its application to the Potenza Municipality case study in which the online calculator DSTool (the core instrument of the toolbox) was utilized to select and prioritize the energy efficiency interventions in public buildings implementable in a three-year action plan in terms of costs, energy savings, CO2 emissions’ reduction and return on investments. The results highlight that improvements in the building envelopes (walls and roofs), heating and lighting and photovoltaic systems allow reducing CO2 emission approximately 644 t/year and saving about 2050 MWh/year with a total three-year investment of 1,728,823 EUR.

scholarly journals Balancing User Comfort and Energy Efficiency in Public Buildings through Social Interaction by ICT Systems

Systems ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 29 ◽  
Author(s):  
Alessandro Franco
Keyword(s):  
Energy Efficiency ◽  
Social Interaction ◽  
Information And Communication Technologies ◽  
Energy Savings ◽  
Great Part ◽  
Virus Transmission ◽  
Air Cooling ◽  
Indoor Environmental Quality ◽  
Public Buildings ◽  
User Comfort

Energy efficiency, indoor environmental quality, and comfort in public buildings has received increasing attention in recent years as it can contribute to maintaining safety conditions and to the reduction of conventional fuels consumption, energy costs for building owners, and greenhouse gas emissions. People are an integral part of any building energetic ecosystem as, according to some estimates, they spend a great part of their life in indoor spaces. On one side, occupants are responsible for the energy consumption of the building and for this reason the “psychology of energy saving” has received attention since the 70s up to recent results. On the other hand, strategies for energy efficiency should not jeopardize occupants’ health and quality of life. While general awareness of the value of environmental variables has increased in the last few years, this interest has recently been further exacerbated by the spreading of the well-known COVID-19 pandemic. In fact, as most countries have started planning post-lock-down activities, there is a growing concern regarding how social distancing measures can be enforced in shared buildings and strict indoor air quality control can prevent airborne virus transmission in crowded spaces. The paper discusses the perspectives of increasing the level of social interaction of building users through the systematic use of Information and Communication Technologies (ICT), and in particular, some specific platforms. The ICT system, taking information from the occupants in a concerted way, can be an important instrument to collect data, coming both from physical sensors and from people to develop a multi-objective control strategy for the Heating, Ventilation, and Air Cooling (HVAC) systems in order to obtain energy savings whilst balancing user comfort and healthy conditions.

scholarly journals Comment on Pietrapertosa et al. How to Prioritize Energy Efficiency Intervention in Municipal Public Buildings to Decrease CO2 Emissions? A Case Study from Italy. Int. J. Environ. Res. Public Health 2020, 17, 4434

2021 ◽  
Vol 18 (8) ◽  
pp. 3961
Author(s):  
Miroslav Variny
Keyword(s):  
Public Health ◽  
Energy Efficiency ◽  
Research Method ◽  
Energy Savings ◽  
Environmental Research ◽  
Public Buildings ◽  
Public Building ◽  
Simplified Approach ◽  
Heated Area

This paper responds to the article by Pietrapertosa et al., doi:10.3390/ijerph17124434, published previously in the International Journal of Environmental Research and Public Health. Its aim is to discuss the appropriateness of the studied method, to analyze its weak sides and to propose its robustness improvement. Thus, data presented in the above study were examined and recalculated, yielding, among others, indicators of annual energy savings (in kWh per m2 of total heated area) and specific proposals investment costs (in € per m2 of total heated area). By analyzing the obtained data for all public buildings, a significantly simplified approach to this problematic has been suggested while several other features of the research method and some presented results lack proper reasoning and discussion. Individual approach to each public building has been proposed and discussed point-by-point to enhance the method’s applicability. As a result, more realistic outcomes are obtained, and suitable investment actions can be proposed.

Research on Thermal Performance of the Wall Systems of Steel Public Buildings

2013 ◽  
Vol 275-277 ◽  
pp. 2059-2063
Author(s):  
Shi Pan ◽  
Si Wen Zhang
Keyword(s):  
Energy Consumption ◽  
Test Data ◽  
Thermal Performance ◽  
Energy Savings ◽  
Present Situation ◽  
High Energy ◽  
Public Buildings ◽  
Climatic Regions ◽  
High Energy Consumption

In view of the present situation of high energy consumption from buildings in China, we study the thermal performances of the different wall systems of steel public buildings. We test on insulation tests for the different wall systems by protective thermal box law in the laboratory. According to the test data, we analyze differences between test values and theoretical values in order to determine the different wall systems for the different climatic regions and provide foundation to choose the wall systems of steel public buildings for energy savings.

scholarly journals Neural networks based predictive control for thermal comfort and energy savings in public buildings

2012 ◽  
Vol 55 ◽  
pp. 238-251 ◽  
Author(s):  
P.M. Ferreira ◽  
A.E. Ruano ◽  
S. Silva ◽  
E.Z.E. Conceição
Keyword(s):  
Neural Networks ◽  
Thermal Comfort ◽  
Predictive Control ◽  
Energy Savings ◽  
Public Buildings

scholarly journals Improving energy efficiency of kindergartens in Serbia: Challenges and potentials

2020 ◽  
Vol 24 (6 Part A) ◽  
pp. 3521-3532
Author(s):  
Natasa Cukovic-Ignjatovic ◽  
Dusan Ignjatovic ◽  
Bojana Zekovic
Keyword(s):  
Energy Efficiency ◽  
Energy Savings ◽  
National Level ◽  
Energy Performance ◽  
Physical Structure ◽  
Public Buildings ◽  
Building Stock ◽  
Energy Efficient Buildings ◽  
Heated Area ◽  
Primary Focus

Kindergartens are probably the very first public buildings we actively use in our lives. Therefore, they can be considered as the physical structures that are providing for the very important educational and social function. Additionally, they can also be considered as the specific learning tool for future generations where they can encounter the ideas of green and energy-efficient buildings. One of the results of the research project ?Energy efficiency in public buildings? has been formulated through the development of Serbian National Typology of Kindergartens which was conceived as a specific tool that can be used for improving this portion of building stock. The paper presents the methodology for identification of typical kindergarten buildings, covering various construction periods, building sizes and illustrates the type of analysis performed for model representatives. The potential for energy upgrades covering physical structure, installed technological systems, as well as expected impact on energy performance, has been estimated. The study presents results based on the analysis of the data derived from the National Typology, stressing out that energy retrofits of large and medium-sized kindergartens built during the 1970s and 1980s should be the primary focus of refurbishment activities. Accounting for almost 60% of total buildings and 69.59% of heated area, they are responsible for 75.97% of energy demands. Estimated energy savings of more than 60% indicate the effectiveness of their retrofit. The paper also presents the potential uses of National Typology as a retrofit tool on various scales, from single-building considerations to a strategic approach at the national level.

scholarly journals Energy optimization analysis of archetype public buildings – Results from SHERPA European Project

2021 ◽  
Vol 312 ◽  
pp. 02007
Author(s):  
Tullio de Rubeis ◽  
Iole Nardi ◽  
Domenica Paoletti ◽  
Dario Ambrosini
Keyword(s):  
Energy Savings ◽  
Energy Optimization ◽  
Ghg Emissions ◽  
Mediterranean Area ◽  
Second Phase ◽  
Active Components ◽  
Public Buildings ◽  
Climate Conditions ◽  
European Project ◽  
Abruzzo Region

In this paper, the main results obtained for the identification of energy efficiency measures (EEMs) in archetype public buildings selected by the Abruzzo Region within the European Project SHERPA (SHared knowledge for Energy Renovation in buildings by Public Administration), a three-year project involving 12 partners from the Mediterranean area, are presented.The analysis presented in this work was carried out on 12 public buildings, with different intended use, located in the four provinces of the Abruzzo Region characterized by different climate conditions. For each building, a complex work of documents acquisition has been carried out together with the regional coordinators of the Project. These documents have allowed the energy assessment of the selected buildings in their current condition. The second phase of the study has instead focused on the effects resulting from the application of EEMs on both passive and active components, in terms of energy savings and greenhouse gas (GHG) emissions reduction. The results obtained have permitted to compare different public buildings, in different climate conditions, identifying EEMs and achievable results that may be useful to policy makers for the identification of appropriate energy optimization strategies and financial instruments for their implementation.

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