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Publications (10 of 49) Show all publications
Bhattacharjee, S., Lidelöw, S. & Shadram, F. (2023). Energy and indoor thermal performance analysis of a glazed façade high-rise building under various Nordic climatic conditions. Energy Reports, 10, 3039-3053
Open this publication in new window or tab >>Energy and indoor thermal performance analysis of a glazed façade high-rise building under various Nordic climatic conditions
2023 (English)In: Energy Reports, E-ISSN 2352-4847, Vol. 10, p. 3039-3053Article in journal (Refereed) Published
Abstract [en]

Research has shown that glazed buildings can have higher energy use and are more prone to overheating than other types of buildings. However, few studies have explored the performance of glazed buildings in cold climates. This article aims to evaluate the energy and indoor thermal performance of a high-rise residential building with glazed façades and balconies under Nordic climatic conditions, through a parametric study. Dynamic, whole-year simulations are used to evaluate the impact of four design parameters (with and without glazed balconies, type of balcony glazing, window to wall ratio, and building location within the Nordic region) on the energy and indoor thermal performance of the building. The results show that the building without glazed balconies outperformed that with glazed balconies. Changing from single- to double-pane glazing also helped to reduce energy use and overheating, as did lowering the window-to-wall ratio. Overheating of apartments was found to occur during the summer in five of the six locations simulated, which suggests that solar control strategies might be needed for glazed buildings even in a Nordic climate. This study highlights the importance of further research on glazed residential buildings, which are becoming more common in contexts subject to such climates.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Cold climate, Building energy use, Indoor thermal climate, Glazed balcony, Glazed façade, Building performance simulation
National Category
Building Technologies
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-95832 (URN)10.1016/j.egyr.2023.09.090 (DOI)2-s2.0-85173567212 (Scopus ID)
Funder
Interreg Nord, project EEBAK (EnergiEffektiva Byggnader i Arktiska Kommuner)Swedish Energy Agency, 46849-1
Note

Validerad;2023;Nivå 2;2023-11-13 (joosat);

CC BY 4.0 License

This article has previously appeared as a manuscript in a thesis.

Available from: 2023-03-09 Created: 2023-03-09 Last updated: 2023-11-13Bibliographically approved
Lidelöw, S., Engström, S. & Samuelson, O. (2023). The promise of BIM? Searching for realized benefits in the Nordic architecture, engineering, construction, and operation industries. Journal of Building Engineering, 76, Article ID 107067.
Open this publication in new window or tab >>The promise of BIM? Searching for realized benefits in the Nordic architecture, engineering, construction, and operation industries
2023 (English)In: Journal of Building Engineering, E-ISSN 2352-7102, Vol. 76, article id 107067Article in journal (Refereed) Published
Abstract [en]

Benefits of BIM are not being achieved as expected in the mainstream architecture, engineering, construction, and operation (AECO) industries. Here, we aim to contrast expected and realized BIM benefits in AECO companies and discuss explanations for why benefits proposed in literature have, or have not, been realized. A qualitative research approach is applied to collect and analyse interview data from 47 companies in Finland, Norway and Sweden. Findings show that realized benefits typically occur “within the current practice” of individual organizations' project-related work. In contrast, expected but not realized benefits are long-term, lifecycle oriented and challenge current business and practice. Our proposed explanations acknowledge that fully realizing the expected benefits of BIM suggested in the technology-driven research is restrained by the current sector state-of-practice and assumes a high degree of BIM maturity among all cooperating companies. Thus, we discuss how explanations relate to the fundamental change required to radically leverage the benefits of BIM, challenging both current ways of work and the ubiquitous assumption of clients as drivers for BIM implementation in the sector. Based on our research, we argue that client demand is insufficient to realize the promise of BIM. Suggested research implications include a need for greater supply-driven logic among suppliers of BIM expert services, and the integration of multi-disciplinary competencies within and beyond the traditional disciplines. The research demonstrates the gap between state-of-the-art BIM predicted in literature and mainstream industry's adoption and highlights the importance of extending BIM research to better account for socio-organizational and process aspects of benefits and adoption.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Barriers, BIM maturity, Building information modelling, Building lifecycle management, Network transformation
National Category
Construction Management
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-99121 (URN)10.1016/j.jobe.2023.107067 (DOI)2-s2.0-85161977446 (Scopus ID)
Projects
Increasing Competence in Northern Building and Construction OperationsEnhanced Sustainability of Built Environment by Collaboration and Digitalization
Funder
Interreg Nord, 20201097, 20271582
Note

Validerad;2023;Nivå 2;2023-07-04 (hanlid)

Available from: 2023-07-04 Created: 2023-07-04 Last updated: 2023-07-05Bibliographically approved
Risberg, M., Lundqvist, P., Lidelöw, S. & Bhattacharjee, S. (2022). Inomhusklimat i hus med inglasade fasader (ed.). Energimyndigheten
Open this publication in new window or tab >>Inomhusklimat i hus med inglasade fasader
2022 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Energimyndigheten, 2022. p. 20
Series
Rapport ; 2022:7
Keywords
Glazing, low-energy apartment buildings, subarctic, CFD, energy simulation, IDA ICE, Inglasning, lågenergiflerbostadshus, subarktiskt, CFD, energisimulering, IDA ICE
National Category
Civil Engineering
Research subject
Construction Management and Building Technology; Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-93370 (URN)
Projects
E2B2
Available from: 2022-09-30 Created: 2022-09-30 Last updated: 2023-10-10Bibliographically approved
Lantz, H. N., Engström, S. & Lidelöw, S. (2021). Energifrågor inom organisationer: Analys av den interna organisationens inverkan för hantering av energirelaterade frågor hos fastighetsägare (ed.). Belok
Open this publication in new window or tab >>Energifrågor inom organisationer: Analys av den interna organisationens inverkan för hantering av energirelaterade frågor hos fastighetsägare
2021 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Belok, 2021. p. 46
National Category
Civil Engineering
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-93379 (URN)
Available from: 2022-09-30 Created: 2022-09-30 Last updated: 2022-09-30Bibliographically approved
Schade, J., Lidelöw, S. & Lönnqvist, J. (2021). The thermal performance of a green roof on a highly insulated building in a sub-arctic climate. Energy and Buildings, 241, Article ID 110961.
Open this publication in new window or tab >>The thermal performance of a green roof on a highly insulated building in a sub-arctic climate
2021 (English)In: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 241, article id 110961Article in journal (Refereed) Published
Abstract [en]

Green roofs are complex systems, with a vegetation layer covering the outermost surface of the building shell. An effective design may confer environmental and energy benefits. Most field studies evaluating green roof performance have been conducted in warmer climates with few studies of full-scale green roofs in cold regions. No study has so far evaluated the energy performance of a green roof in a sub-arctic climate. This study demonstrates the heat flow and thermal effect of an extensive green roof versus a black bare roof area on a highly insulated building in the sub-arctic town of Kiruna, Sweden, for the period from November 2016 to February 2018. Measured temperature and heat flux values were consistently higher and more variable for the black roof than the green roof, except during the snow-covered winter months when the responses were similar. The cumulative heat flux showed that the net heat loss was greater through the black than the green roof, but the values remained low. Overall, the study confirms that the energy benefit of a green roof on a highly insulated building in a subarctic climate is low.

Place, publisher, year, edition, pages
Elsevier, 2021
Keywords
Green roofs, Subarctic climate, Heat flux, Insulation, Full-scale test
National Category
Building Technologies
Research subject
Urban Water Engineering; Construction Management and Building Technology; Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-83714 (URN)10.1016/j.enbuild.2021.110961 (DOI)000648525000006 ()2-s2.0-85103983858 (Scopus ID)
Funder
Swedish Research Council Formas, 2014-854Interreg Nord
Note

Validerad;2021;Nivå 2;2021-04-16 (alebob)

Available from: 2021-04-16 Created: 2021-04-16 Last updated: 2021-06-03Bibliographically approved
Törnå, N., Lidelöw, S. & Stehn, L. (2020). A coordination perspective on dialogue processes between planners and developers in a sustainable urban development project. In: Holger Wallbaum; Alexander Hollberg; Liane Thuvander; Paula Femenias; Kristina Mjörnell; Colin Fudge (Ed.), WSBE 20 - World Sustainable Built Environment - Beyond2020 2-4 November 2020, Gothenburg, Sweden: . Paper presented at BEYOND 2020 – World Sustainable Built Environment conference (WSBE 2020), Online, November 2-4, 2020. Institute of Physics (IOP), Article ID 052055.
Open this publication in new window or tab >>A coordination perspective on dialogue processes between planners and developers in a sustainable urban development project
2020 (English)In: WSBE 20 - World Sustainable Built Environment - Beyond2020 2-4 November 2020, Gothenburg, Sweden / [ed] Holger Wallbaum; Alexander Hollberg; Liane Thuvander; Paula Femenias; Kristina Mjörnell; Colin Fudge, Institute of Physics (IOP), 2020, article id 052055Conference paper, Published paper (Refereed)
Abstract [en]

Several of Sweden's Local Planning Authorities (LPAs) use developer dialogue processes between them and building actors to aid in the implementation of urban development projects. The idea is often to achieve ambitious local sustainability and to encourage a generally appreciated collaborative culture; however, processes of planners/developers interactions are challenging to manage in practice. In this study, we aim to depict and analyse a developer dialogue process used by a Swedish LPA in an on-going sustainable urban development project through the theoretical lens of organizational coordination mechanisms. Particular focus is placed on exploring how planners and develops interact while negotiating and implementing locally defined sustainability priorities. Empirical material was collected through document analysis, workshops and interviews with LPA representatives. Findings from the ongoing study indicates that the LPA manage a mixture of formal and informal interdependencies throughout in an attempt to achieve a greater fulfilment of their sustainability goals, and better outcomes in terms of product compliance. Furthermore, the use of coordination mechanisms for analysing the project seems to represent an important instrumental knowledge gap for better understanding sustainable urban development projects' implementation and outcomes.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2020
Series
IOP Conference Series: Earth and Environmental Science, ISSN 1755-1315, E-ISSN 1755-1307 ; 588 (5)
National Category
Construction Management
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-85546 (URN)10.1088/1755-1315/588/5/052055 (DOI)2-s2.0-85097248605 (Scopus ID)
Conference
BEYOND 2020 – World Sustainable Built Environment conference (WSBE 2020), Online, November 2-4, 2020
Projects
DORIS - DOktorand för Resurseffektivitet I Samhällsbyggandet
Funder
European Regional Development Fund (ERDF), 20201294
Available from: 2021-06-17 Created: 2021-06-17 Last updated: 2023-09-05Bibliographically approved
Shadram, F., Bhattacharjee, S., Lidelöw, S., Mukkavaara, J. & Olofsson, T. (2020). Exploring the trade-off in life cycle energy of building retrofit through optimization. Applied Energy, 269, Article ID 115083.
Open this publication in new window or tab >>Exploring the trade-off in life cycle energy of building retrofit through optimization
Show others...
2020 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 269, article id 115083Article in journal (Refereed) Published
Abstract [en]

Building retrofit is considered as a vital step to achieve energy and climate goals in both Europe and Sweden. Nevertheless, retrofitting solutions based merely on reducing operational energy use can increase embodied energy use, mainly due to altering the existing trade-off between the two. Considering this trade-off is vitally important, especially for retrofitting buildings located in cold climate regions, as reduction of operational energy use to meet standards of energy-efficient buildings may require a deep retrofitting that can considerably increase the embodied energy and thus be unfavorable from a Life Cycle Energy (LCE) perspective. This article presents a case study in which multi-objective optimization was used to explore the impact of a wide range of retrofitting measures on the aforementioned trade-off for a building in Sweden located in a subarctic climatic zone. The studied building was a typical 1980s multi-family residence. The goal was to explore and compare the optimal retrofitting solution(s) for the building, aiming to achieve Swedish energy-efficient building standards (i.e. new-build and near-zero energy standards). The results of the optimization indicated that (1) use of additional insulation in walls and roof, (2) replacement of existing windows with more energy-efficient ones, and (3) change of traditional mechanical extract ventilation to heat recovery ventilation are the primary and optimal retrofitting measures to fulfill the new-build Swedish energy standard and achieve highest LCE savings. However, to fulfill more far-reaching operational energy savings, application of additional retrofitting measures was required, increasing the embodied energy use considerably and resulting in lower LCE savings compared to the optimal retrofitting solution that only reached the Swedish new-build energy standard. The LCE difference between the optimal retrofitting solutions that fulfilled the new-build standard and the strictest near-zero (passive house) standard was 1862 GJ, which is equivalent to almost four years of operational energy use for the original building. This indicates that there is a limit to the reduction of operational energy use when retrofitting existing buildings, beyond which additional reductions can considerably increase the embodied energy and thus be unfavorable in terms of LCE use.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Building retrofit, Embodied energy, Life cycle energy, Multi-objective optimization, Operational energy, Retrofitting measures
National Category
Construction Management
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-78989 (URN)10.1016/j.apenergy.2020.115083 (DOI)000537619800048 ()2-s2.0-85084475658 (Scopus ID)
Note

Validerad;2020;Nivå 2;2020-05-26 (johcin)

Available from: 2020-05-26 Created: 2020-05-26 Last updated: 2023-03-10Bibliographically approved
Lidelöw, S., Örn, T., Luciani, A. & Rizzo, A. (2019). Energy-efficiency measures for heritage buildings: a literature review. Sustainable cities and society, 45, 231-242
Open this publication in new window or tab >>Energy-efficiency measures for heritage buildings: a literature review
2019 (English)In: Sustainable cities and society, ISSN 2210-6707, Vol. 45, p. 231-242Article in journal (Refereed) Published
Abstract [en]

The energy performance of heritage buildings is attracting growing interest in research and practice. Accordingly, as shown by our literature review, increasing numbers of articles on energy-efficiency measures for heritage buildings are being published in peer-reviewed journals. However, there is no overview of how energy efficiency and heritage conservation have been approached in the studies. To address this gap we categorized and assessed the identified studies in terms of two key elements of such investigations: energy analysis and analysis of cultural heritage values. Most of the studies evaluate and propose measures to reduce the operational energy use of single heritage buildings, and fewer have applied a broader system perspective. Moreover, the underlying notion of the buildings’ cultural heritage values seems to have been derived mainly from international conventions and agreements, while potentially significant architectural, cultural and historical factors have been rarely discussed. Our findings highlight that, when considering energy improvements, cultural heritage values should be more explicitly articulated and analysed in relation to established conservation principles or methodologies. Besides further scientific study, this point to the need of designing best-practice approaches that allow transparency and knowledge sharing about the complex relationships between energy efficiency and heritage conservation of buildings.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Energy analysis, energy performance, energy use, conservation, historic preservation, cultural heritage
National Category
Architectural Engineering Construction Management
Research subject
Architecture; Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-71085 (URN)10.1016/j.scs.2018.09.029 (DOI)000455274500021 ()2-s2.0-85057621729 (Scopus ID)
Note

Validerad;2019;Nivå 2;2019-01-25 (inah)

Available from: 2018-10-03 Created: 2018-10-03 Last updated: 2019-01-25Bibliographically approved
Nilsson, K. L., Luciani, A. & Lidelöw, S. (2019). Smart energieffektiviseringav kulturhistoriska byggnaderi kallt klimat. Energimyndigheten
Open this publication in new window or tab >>Smart energieffektiviseringav kulturhistoriska byggnaderi kallt klimat
2019 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Energimyndigheten, 2019. p. 22
National Category
Civil Engineering
Research subject
Construction Management and Building Technology; Architecture
Identifiers
urn:nbn:se:ltu:diva-93374 (URN)
Note

Spara och bevara – Etapp III energimyndighetens forskningsprogram för energieffektivisering i kulturhistoriskt värdefulla byggnader

Projektnr: 36957-3

Available from: 2022-09-30 Created: 2022-09-30 Last updated: 2023-09-05Bibliographically approved
Luciani, A., Lidelöw, S., Bhattacharjee, S. & Örn, T. (2019). The Challenge of Energy Efficiency in Kiruna’s Heritage Buildings. In: Johansson D., Bagge H., Wahlström Å. (Ed.), Dennis Johansson, Hans Bagge, Åsa Wahlström (Ed.), Cold Climate HVAC 2018: Sustainable Buildings in Cold Climates. Paper presented at The 9th International Cold Climate Conference (Cold Climate HVAC 2018), 12-15 March, 2018, Kiruna, Sweden (pp. 275-289). Cham: Springer
Open this publication in new window or tab >>The Challenge of Energy Efficiency in Kiruna’s Heritage Buildings
2019 (English)In: Cold Climate HVAC 2018: Sustainable Buildings in Cold Climates / [ed] Dennis Johansson, Hans Bagge, Åsa Wahlström, Cham: Springer, 2019, p. 275-289Conference paper, Published paper (Refereed)
Abstract [en]

The town of Kiruna, founded in 1900 in the northernmost part of Sweden, is nowadays in the middle of an impressive urban transformation: due to the impacts of mining activities a large part of the city center has to be moved or rebuilt. Among the buildings to be moved and kept in use are some of the so-called ‘Bläckhorn’ timber houses, designed by Gustaf Wickman in the early 20th century as residential units for the workers of the mining company LKAB and part of the original core of Kiruna. This has raised several questions on the sustainability of renovating historic buildings in a sub-arctic climate. In order to explore the challenge of increasing the energy efficiency of the Bläckhorn houses, data on their constructional and historical features as well as their thermal and energy performance have been collected. The paper addresses the following issues. Historic buildings are often blamed for their poor energy efficiency without considering their usually high constructional quality. What do we know about the real performances of these buildings? Energy retrofits in non-monumental and inhabited historic buildings are often guided by practical and operational needs rather than by their heritage significance. Can a value-based approach affect the improvement of energy efficiency? In a subarctic climate, even simple interventions can help to save a considerable amount of energy in historic buildings. To which extent the energy performances of the Bläckhorn houses could be increased without affecting their heritage values?

Place, publisher, year, edition, pages
Cham: Springer, 2019
Series
Springer Proceedings in Energy, ISSN 2352-2534, E-ISSN 2352-2542
Keywords
Energy efficiency, Historic buildings, Cultural heritage values
National Category
Architectural Engineering Construction Management
Research subject
Architecture; Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-72040 (URN)10.1007/978-3-030-00662-4_24 (DOI)000675599300024 ()
Conference
The 9th International Cold Climate Conference (Cold Climate HVAC 2018), 12-15 March, 2018, Kiruna, Sweden
Note

ISBN för värdpublikation: 978-3-030-00661-7, 978-3-030-00662-4

Available from: 2018-12-14 Created: 2018-12-14 Last updated: 2021-12-13Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-0974-2142

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