Effects of deep thermal modernization and use of renewable energy in public buildings in North-Eastern Poland

Sadowska, B.

doi:10.22616/erdev2018.17.n447

Cited by 9 publications

(8 citation statements)

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“…There are many methods of improving the energy performance of buildings but the best results are achieved by comprehensive thermal modernization. Properly prepared, the deep thermal modernization of a building in Poland, located in a cold, heating-dominated climate, can result in final energy savings of up to 65% [10]. A similar average reduction in energy consumption (of 66.4%) was reported in research published by the International Energy Agency [11], in which 26 case studies of buildings around the world were collected and analyzed.…”

Section: Introductionsupporting

confidence: 54%

Efficiency of Different Balcony Slab Modernization Method in Retrofitted Multi-Family Buildings

Sadowska

Bieranowski

2021

Energies

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Many buildings have considerable thermal bridges at the junction of balcony slabs with walls. To achieve the new EU directive targets related to energy efficiency, greater attention should be paid to such design details. This study analyzes the efficiency of traditional balcony slab modernization methods, the use of modern insulation materials and a new alternative system: an added self-supporting light balcony system (LKBD) in retrofitted large-panel buildings. The main objective was to capture cost-effective renovation methods from both the heat loss reduction perspectives and risk of surface condensation. The analyses, carried out in four buildings, have shown that at current costs, the thermal modernization of balconies is not economically efficient (SPBT>98.4 years). However, it is necessary because leaving the balcony slabs without insulation or only insulating them from the bottom carries the risk of surface condensation. The most cost-effective renovation method is to insulate the balcony slabs from below and above with the thickest possible XPS layer (SPBT = 98.4 years; 107.4 years). Replacing XPS with modern material increases SPBT by almost 50%, for the LKBD system, SPBT = 269.2–281.5 years. More favorable energy and economic effects related to the reduction of balcony thermal bridges were achieved in the wall with lower insulation.

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Section: Introductionsupporting

confidence: 54%

Efficiency of Different Balcony Slab Modernization Method in Retrofitted Multi-Family Buildings

Sadowska

Bieranowski

2021

Energies

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“…Furthermore, the creation of ZEBs still presents significant problems. High initial investment [125], limited incentives and less positive social attitudes towards ZEBs are the key challenges [126,127]. Public education seems to be a successful way to overcome these challenges.…”

Section: Future Research Needsmentioning

confidence: 99%

Zero-Energy Buildings and Energy Efficiency towards Sustainability: A Bibliometric Review and a Case Study

et al. 2022

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The rapid growth of sustainability has created a plethora of options for expanding zero-energy buildings (ZEBs) and energy efficiency in all aspects of life. In recent years, there has been a rise in interest in ZEBs, and many countries have adopted ZEBs as future energy targets to promote the sustainable development paradigm. The primary goal of this paper was to conduct a bibliometric review of current research on ZEBs and energy efficiency. The first part of this paper identifies new knowledge gaps as well as practical demands in the field of sustainable development. Furthermore, bibliometric analysis was performed using the Scopus database (i.e., 2592 articles) and a screening process was undertaken, with the result being 252 papers. This study draws attention to a body of knowledge by reviewing trends and patterns, major research topics, journals, countries, new approaches, emerging trends, and future directions for sustainable development. This study is unique in that it provides a comprehensive, updated review of ZEBs and energy efficiency trends. Moreover, this study could help identify limitations for future policymakers, practitioners, and academics. The empirical section of this paper, through a case study, presents an example of a low-energy single-family building located in Poland.

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“…The results of the research on the investments implemented in Poland [29] indicate that in the conditions of a temperate continental climate, in the north-eastern part of the country, as a result of the deep thermomodernization of utility buildings located in rural areas, final energy savings of 46-65% and a reduction in CO 2 emissions by 45-86% were achieved. In the case of small churches located in the same region of Poland, the energy effects were at the level of 32-66% [30].…”

Section: Introductionmentioning

confidence: 99%

Energy and Economic Efficiency of the Thermomodernization of an Educational Building and Reduction of Pollutant Emissions—A Case Study

et al. 2022

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The study presents an investigation of thermal energy consumption for heating in an educational building located in the north-eastern part of Poland in 2017–2020, after deep thermomodernization. An evaluation of the actual energy effects was made based on measurements carried out over a 4-year operational period. They were compared with the results of theoretical calculations included in the energy audit and an attempt was made to describe the reasons for the discrepancies. The planned and achieved economic efficiency indicators were assessed and the amount of reduction of pollutant emissions was determined. The performed analysis allowed for an assessment of the impact of deep thermomodernization in terms of reducing heat energy consumption for central heating purposes, as well as reducing greenhouse gas emissions such as CO2, SOx, NOx and benzo(a)pyrene to the atmosphere. The implementation of thermomodernization in buildings led to savings of about 43% in terms of heat energy consumption for heating and a reduction in pollutant emissions. The theoretical savings based on the audit were 50.4%. The obtained results show that deep thermomodernization contributes to the improvement of energy and ecological efficiency in educational buildings, however, without the possibility of using subsidies, the investment is unprofitable. All the obtained results were discussed with the available literature sources and have been summarized with appropriate conclusions.

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Effects of deep thermal modernization and use of renewable energy in public buildings in North-Eastern Poland

Cited by 9 publications

References 0 publications

Efficiency of Different Balcony Slab Modernization Method in Retrofitted Multi-Family Buildings

Efficiency of Different Balcony Slab Modernization Method in Retrofitted Multi-Family Buildings

Zero-Energy Buildings and Energy Efficiency towards Sustainability: A Bibliometric Review and a Case Study

Energy and Economic Efficiency of the Thermomodernization of an Educational Building and Reduction of Pollutant Emissions—A Case Study

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