Rajčić, Aleksandar

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orcid::0000-0003-0156-0061
  • Rajčić, Aleksandar (2)
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Author's Bibliography

Lack of regulation on the energy efficiency in Serbia in terms of the assessment of the impact of thermal bridges

Rajčić, Aleksandar; Đukanović, Ljiljana; Radivojević, Ana

(IOP Publishing Ltd, 2020)

TY  - CONF
AU  - Rajčić, Aleksandar
AU  - Đukanović, Ljiljana
AU  - Radivojević, Ana
PY  - 2020
UR  - https://raf.arh.bg.ac.rs/handle/123456789/830
AB  - As one of the aspects of sustainable architecture, the energy efficiency of buildings has largely come to life and has found its practical application in modern construction practice. Active action towards the achievement of the adequate energy performance of buildings implies the creation of appropriate regulations, providing basic guidelines for securing energy efficiency in the design and construction of buildings. In that sense, with a dozen years of delay in relation to the introduction of the EPBD, Serbia has adopted its legal regulations regarding energy efficiency in buildings, being in force since 2012. Respecting the basic guidelines of the original directive, the regulations in Serbia were the subject of major changes in relation to the previous ones, making a major shift in the boundaries of the relevant parameters and the basic methodology of calculating the energy performance of buildings. However, in practice, it has been shown that some of the factors that are important for the design and energy behaviour of the buildings have been treated inadequately. This particularly refers to the problem of thermal bridges, whose impact on the overall energy performance of the buildings is too simplified. Consequently, depending on the complexity of the building, the prescribed calculation methodology often yields significantly fewer energy needs than they actually are. By taking the view that the influence of thermal bridges, regardless of their type and character, is treated as an arbitrary magnification of surface transmission loss in the function of magnifying the surface of the thermal envelope, the real impact of both linear and point heat losses is neglected. While the issue of an adequate calculation of linear losses is directly related to the way of designing the building, that is, to the conception of details, the question of the impact of point losses is a consequence of the structure of thermal envelope elements. The paper presents two types of critical cases of thermal bridges: the treatment of linear thermal bridges for which research has shown that their influence can significantly exceed those envisaged by the current rulebook, and the influence of point heat bridges, as seen in the specific case of ventilated façades in which this problem is present.
PB  - IOP Publishing Ltd
C3  - IOP Conference Series: Earth and Environmental Science
T1  - Lack of regulation on the energy efficiency in Serbia in terms of the assessment of the impact of thermal bridges
VL  - 410
SP  - 1
EP  - 11
DO  - 10.1088/1755-1315/410/1/012077
ER  - 
@conference{
author = "Rajčić, Aleksandar and Đukanović, Ljiljana and Radivojević, Ana",
year = "2020",
abstract = "As one of the aspects of sustainable architecture, the energy efficiency of buildings has largely come to life and has found its practical application in modern construction practice. Active action towards the achievement of the adequate energy performance of buildings implies the creation of appropriate regulations, providing basic guidelines for securing energy efficiency in the design and construction of buildings. In that sense, with a dozen years of delay in relation to the introduction of the EPBD, Serbia has adopted its legal regulations regarding energy efficiency in buildings, being in force since 2012. Respecting the basic guidelines of the original directive, the regulations in Serbia were the subject of major changes in relation to the previous ones, making a major shift in the boundaries of the relevant parameters and the basic methodology of calculating the energy performance of buildings. However, in practice, it has been shown that some of the factors that are important for the design and energy behaviour of the buildings have been treated inadequately. This particularly refers to the problem of thermal bridges, whose impact on the overall energy performance of the buildings is too simplified. Consequently, depending on the complexity of the building, the prescribed calculation methodology often yields significantly fewer energy needs than they actually are. By taking the view that the influence of thermal bridges, regardless of their type and character, is treated as an arbitrary magnification of surface transmission loss in the function of magnifying the surface of the thermal envelope, the real impact of both linear and point heat losses is neglected. While the issue of an adequate calculation of linear losses is directly related to the way of designing the building, that is, to the conception of details, the question of the impact of point losses is a consequence of the structure of thermal envelope elements. The paper presents two types of critical cases of thermal bridges: the treatment of linear thermal bridges for which research has shown that their influence can significantly exceed those envisaged by the current rulebook, and the influence of point heat bridges, as seen in the specific case of ventilated façades in which this problem is present.",
publisher = "IOP Publishing Ltd",
journal = "IOP Conference Series: Earth and Environmental Science",
title = "Lack of regulation on the energy efficiency in Serbia in terms of the assessment of the impact of thermal bridges",
volume = "410",
pages = "1-11",
doi = "10.1088/1755-1315/410/1/012077"
}
Rajčić, A., Đukanović, L.,& Radivojević, A.. (2020). Lack of regulation on the energy efficiency in Serbia in terms of the assessment of the impact of thermal bridges. in IOP Conference Series: Earth and Environmental Science
IOP Publishing Ltd., 410, 1-11.
https://doi.org/10.1088/1755-1315/410/1/012077
Rajčić A, Đukanović L, Radivojević A. Lack of regulation on the energy efficiency in Serbia in terms of the assessment of the impact of thermal bridges. in IOP Conference Series: Earth and Environmental Science. 2020;410:1-11.
doi:10.1088/1755-1315/410/1/012077 .
Rajčić, Aleksandar, Đukanović, Ljiljana, Radivojević, Ana, "Lack of regulation on the energy efficiency in Serbia in terms of the assessment of the impact of thermal bridges" in IOP Conference Series: Earth and Environmental Science, 410 (2020):1-11,
https://doi.org/10.1088/1755-1315/410/1/012077 . .

Chapter 22. Serbia

Mijić, Miomir; Radivojević, Ana; Šumarac Pavlović, Dragana; Mašović, Draško; Jovanović Popović, Milica; Ignjatović, Dušan; Rajčić, Aleksandar

(Madrid : DiScript Preimpresion, 2014)

TY  - CHAP
AU  - Mijić, Miomir
AU  - Radivojević, Ana
AU  - Šumarac Pavlović, Dragana
AU  - Mašović, Draško
AU  - Jovanović Popović, Milica
AU  - Ignjatović, Dušan
AU  - Rajčić, Aleksandar
PY  - 2014
UR  - https://raf.arh.bg.ac.rs/handle/123456789/808
AB  - Neighbour noise is a significant problem having had insufficient attention for decades, both for existing housing and new housing. Time had come to solve the challenges by establishing a common framework in building acoustics throughout Europe. As a consequence, the research network, COST Action TU0901 “Integrating and Harmonizing Sound Insulation Aspects in Sustainable Urban Housing Constructions” was established to initiate and support a process towards such framework.
COST TU0901 considered the main tool to be an acoustic classification scheme for dwellings –implying definition of a number of quality classes– combined with knowledge about housing constructions complying with the class criteria.
The findings from COST TU0901 are presented in two books with the joint main title “Building acoustics throughout Europe”. Volume 2 consists of country chapters describing the national housing stock, construction types and related sound insulation performance in countries involved in COST TU0901.
This particular chapter presents the situation in Serbia regarding the basic characteristics of the housing stock and acoustic performance of typical constructions between dwellings - partition
walls between dwellings, as well as floor structures.
PB  - Madrid : DiScript Preimpresion
T2  - Building acoustics throughout Europe Volume 2: Housing and construction types country by country
T1  - Chapter 22. Serbia
SP  - 374
EP  - 387
UR  - https://hdl.handle.net/21.15107/rcub_raf_808
ER  - 
@inbook{
author = "Mijić, Miomir and Radivojević, Ana and Šumarac Pavlović, Dragana and Mašović, Draško and Jovanović Popović, Milica and Ignjatović, Dušan and Rajčić, Aleksandar",
year = "2014",
abstract = "Neighbour noise is a significant problem having had insufficient attention for decades, both for existing housing and new housing. Time had come to solve the challenges by establishing a common framework in building acoustics throughout Europe. As a consequence, the research network, COST Action TU0901 “Integrating and Harmonizing Sound Insulation Aspects in Sustainable Urban Housing Constructions” was established to initiate and support a process towards such framework.
COST TU0901 considered the main tool to be an acoustic classification scheme for dwellings –implying definition of a number of quality classes– combined with knowledge about housing constructions complying with the class criteria.
The findings from COST TU0901 are presented in two books with the joint main title “Building acoustics throughout Europe”. Volume 2 consists of country chapters describing the national housing stock, construction types and related sound insulation performance in countries involved in COST TU0901.
This particular chapter presents the situation in Serbia regarding the basic characteristics of the housing stock and acoustic performance of typical constructions between dwellings - partition
walls between dwellings, as well as floor structures.",
publisher = "Madrid : DiScript Preimpresion",
journal = "Building acoustics throughout Europe Volume 2: Housing and construction types country by country",
booktitle = "Chapter 22. Serbia",
pages = "374-387",
url = "https://hdl.handle.net/21.15107/rcub_raf_808"
}
Mijić, M., Radivojević, A., Šumarac Pavlović, D., Mašović, D., Jovanović Popović, M., Ignjatović, D.,& Rajčić, A.. (2014). Chapter 22. Serbia. in Building acoustics throughout Europe Volume 2: Housing and construction types country by country
Madrid : DiScript Preimpresion., 374-387.
https://hdl.handle.net/21.15107/rcub_raf_808
Mijić M, Radivojević A, Šumarac Pavlović D, Mašović D, Jovanović Popović M, Ignjatović D, Rajčić A. Chapter 22. Serbia. in Building acoustics throughout Europe Volume 2: Housing and construction types country by country. 2014;:374-387.
https://hdl.handle.net/21.15107/rcub_raf_808 .
Mijić, Miomir, Radivojević, Ana, Šumarac Pavlović, Dragana, Mašović, Draško, Jovanović Popović, Milica, Ignjatović, Dušan, Rajčić, Aleksandar, "Chapter 22. Serbia" in Building acoustics throughout Europe Volume 2: Housing and construction types country by country (2014):374-387,
https://hdl.handle.net/21.15107/rcub_raf_808 .