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Publications (10 of 30) Show all publications
Shen, J. (2023). A Critical Review of Lighting Design and Asset Management Strategies: Illuminating Practices and Lessons Learned for Swedish Public Libraries. In: 13th Nordic Symposium on Building Physics, NSB 2023 proceedings: . Paper presented at 13th Nordic Symposium on Building Physics, Aalborg, Denmark on 12-14 June 2023. Aalborg, Denmark
Open this publication in new window or tab >>A Critical Review of Lighting Design and Asset Management Strategies: Illuminating Practices and Lessons Learned for Swedish Public Libraries
2023 (English)In: 13th Nordic Symposium on Building Physics, NSB 2023 proceedings, Aalborg, Denmark, 2023Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Aalborg, Denmark: , 2023
Keywords
Lighting, Digital Twin
National Category
Building Technologies
Identifiers
urn:nbn:se:du-47215 (URN)
Conference
13th Nordic Symposium on Building Physics, Aalborg, Denmark on 12-14 June 2023
Available from: 2023-11-03 Created: 2023-11-03 Last updated: 2023-11-07Bibliographically approved
Shen, J., Chen, Y. & Rajagopal, K. H. (2023). Enhancing Indoor Environmental Quality and Sustainability in Post-Pandemic Office Settings: A Study on Displacement Ventilation Feasibility. Buildings, 13, Article ID 3110.
Open this publication in new window or tab >>Enhancing Indoor Environmental Quality and Sustainability in Post-Pandemic Office Settings: A Study on Displacement Ventilation Feasibility
2023 (English)In: Buildings, E-ISSN 2075-5309, Vol. 13, article id 3110Article in journal (Refereed) Published
Abstract [en]

The COVID-19 pandemic has catalyzed global efforts toward transitioning to a sustainable society, driving rapid innovation in building technologies, working practices, building design, and whole life cycle environmental impact consideration. In this pursuit, this study explores the enduring impact of these on an alternative ventilation approach for both existing building renovations and new building implementations. Comparing displacement ventilation to mixed-mode ventilation in a Finnish office building with varying occupancy densities, this study examines indoor air quality (IAQ), thermal comfort, total building energy performance, and embodied carbon. The findings reveal that the basic case of mixed ventilation has a specified system primary energy value of 38.83 kWh/m2 (with 28 occupants) and 39.00 kWh/m2 (with 24 occupants), respectively. With the displacement ventilation alternative, it reduces this by 0.3% and 0.1%, enhancing thermal comfort and decreasing turbulence as well as having a marginal decrease in embodied carbon. In general, the study offers three-fold contributions: insights into post-pandemic office mechanical ventilation design with an emphasis on sustainability and ecological footprint considerations, a concrete case study addressing climate action and human-centric IAQ design, and a multifaceted analysis using the Environmental, Social, and Governance (ESG) paradigm, contributing to the groundwork for associated future research and policy progress.

Keywords
post-pandemic scenario; displacement ventilation; climate with stratification model; life cycle assessment; ecological footprint; healthy indoor quality; office layout design; integrative design process; ESG analysis
National Category
Building Technologies
Identifiers
urn:nbn:se:du-47476 (URN)10.3390/buildings13123110 (DOI)001130889300001 ()2-s2.0-85180616463 (Scopus ID)
Available from: 2023-12-15 Created: 2023-12-15 Last updated: 2024-01-19Bibliographically approved
Copertaro, B., Shen, J., Sangelantoni, L. & Zhang, X. (2022). Building Renovation Adapting to Future Climate: A Potential Solution of Phase-Change Material to Building Envelope. In: Maximilian Lackner, Baharak Sajjadi, Wei-Yin Chen (Ed.), Handbook of Climate Change Mitigation and Adaptation: . Springer Nature
Open this publication in new window or tab >>Building Renovation Adapting to Future Climate: A Potential Solution of Phase-Change Material to Building Envelope
2022 (English)In: Handbook of Climate Change Mitigation and Adaptation / [ed] Maximilian Lackner, Baharak Sajjadi, Wei-Yin Chen, Springer Nature, 2022Chapter in book (Refereed)
Place, publisher, year, edition, pages
Springer Nature, 2022
National Category
Civil Engineering
Identifiers
urn:nbn:se:du-36274 (URN)10.1007/978-3-030-72579-2_144 (DOI)2-s2.0-85160782330 (Scopus ID)978-3-030-72579-2 (ISBN)978-3-030-72578-5 (ISBN)
Available from: 2021-03-05 Created: 2021-03-05 Last updated: 2023-06-12Bibliographically approved
Shen, J., Copertaro, B., Sangelantoni, L. & Zhang, X. (2022). Influence of Future Climate on Building Performance and the Related Adaptive Solution to New Building Design. In: Maximilian Lackner, Baharak Sajjadi, Wei-Yin Chen (Ed.), Handbook of Climate Change Mitigation and Adaptation: . Springer Nature
Open this publication in new window or tab >>Influence of Future Climate on Building Performance and the Related Adaptive Solution to New Building Design
2022 (English)In: Handbook of Climate Change Mitigation and Adaptation / [ed] Maximilian Lackner, Baharak Sajjadi, Wei-Yin Chen, Springer Nature, 2022Chapter in book (Refereed)
Place, publisher, year, edition, pages
Springer Nature, 2022
National Category
Civil Engineering
Identifiers
urn:nbn:se:du-36272 (URN)10.1007/978-3-030-72579-2_143 (DOI)2-s2.0-85160808024 (Scopus ID)978-3-030-72579-2 (ISBN)978-3-030-72578-5 (ISBN)
Available from: 2021-03-05 Created: 2021-03-05 Last updated: 2023-06-12Bibliographically approved
Huang, P., Lovati, M., Shen, J., Chai, J. & Zhang, X. (2022). Investigation of the Peer-to-Peer energy trading performances in a local community under the future climate change scenario in Sweden. Energy Reports, 8, 989-1001
Open this publication in new window or tab >>Investigation of the Peer-to-Peer energy trading performances in a local community under the future climate change scenario in Sweden
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2022 (English)In: Energy Reports, E-ISSN 2352-4847, Vol. 8, p. 989-1001Article in journal (Refereed) Published
Abstract [en]

Peer-to-peer (P2P) energy sharing among neighboring households is a promising solution to mitigating the difficulties of renewable power (such as solar Photovoltaics (PV)) penetration on the power grid. Until now, there is still a lack of study on the impacts of future climate change on the P2P energy trading performances. The future climate change will cause variances in the renewable energy production and further lead to changes in the economic performances of households with various energy uses and affect the decision making in PV ownership and pricing strategies. Being unaware of these impacts could potentially hinder the P2P energy sharing application in practice. To bridge such knowledge gap, this paper conducts a systematic investigation of the climate change impacts on the energy sharing performance in solar PV power shared communities. The future weather data is generated using the Morphine method, and an agent-based modeling method is used for simulating the energy trading behaviors of households. Four comparative scenarios of different PV ownerships and pricing strategies are designed. The detailed energy trading performances (including the PV power self-sufficiency, cost saving, revenues, and compound annual growth rate) for the four comparative scenarios are analyzed under both the present and future climates and compared. The study results of a building community located in Sweden show that the future climate change is more beneficial to large energy use households while less beneficial to small households. High price of energy trading can improve the fairness of the economic performances in the community, especially when some of the households do not have any PV ownership. This study can help understand the future climate impacts on the energy sharing performances of building communities, which can in turn guide decision making in PV ownership and price setting for different households under the future climate change to facilitate real applications. © 2021 The Author(s)

Keywords
Agent-based modeling, Building community, Energy sharing, Future climate change, Peer-to-peer (P2P), Photovoltaics (PV), Climate change, Computational methods, Costs, Decision making, Electric power transmission networks, Power markets, Simulation platform, Solar power generation, Agent-based model, Energy sharings, Energy trading, Future climate, Peer to peer (P2P), Photovoltaic, Photovoltaics, Autonomous agents
National Category
Energy Systems Energy Engineering
Identifiers
urn:nbn:se:du-39278 (URN)10.1016/j.egyr.2021.12.032 (DOI)000783906200006 ()2-s2.0-85121784798 (Scopus ID)
Available from: 2022-01-07 Created: 2022-01-07 Last updated: 2023-04-14Bibliographically approved
Shen, J., Boyle, P. & Myhren, J. A. (2022). Offerings and challenges of demand response ventilation under covid-19 scenarios. In: Proceedings of the 17th IBPSA Conference Bruges, Belgium, Sept. 1-3, 2021: . Paper presented at 17th IBPSA Conference Bruges, Belgium, Sept. 1-3, 2021 (pp. 2368-2373). International Building Performance Simulation Association
Open this publication in new window or tab >>Offerings and challenges of demand response ventilation under covid-19 scenarios
2022 (English)In: Proceedings of the 17th IBPSA Conference Bruges, Belgium, Sept. 1-3, 2021, International Building Performance Simulation Association , 2022, p. 2368-2373Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Owning to the outbreak of COVID-19, individuals have to spend more time indoor. It is therefore essential to prepare for a long-term healthy indoor working environment in the transition of post COVID-19 pandemic. However, there is no relevant research so far in investigating such crisis impacts around indoor environmental quality and economic-health issues while home offices are expected becoming common practice soon. Therefore, a case of single-family house in Sweden is specially investigated using IDA ICE. By comparing four predominant ventilation approaches, three operational schedules are proposed, covering different confinement for occupants. Main results show that the demand response ventilation (DRV) generally should sacrifice in remarkable performance in energy saving, and emission reduction to better confront with more challenges in indoor air quality, occupied thermal dissatisfaction fraction and air stagnation under the challenge of COVID-19 pandemic scenario. Altered ventilation strategy should be customized from increased outdoor air supply, various demand-control signal, displacement method towards a heathier homeworking environment. © International Building Performance Simulation Association, 2022

Place, publisher, year, edition, pages
International Building Performance Simulation Association, 2022
Keywords
Air quality, COVID-19, Emission control, Energy conservation, Indoor air pollution, Demand response, Energy-saving and emission reductions, Environmental economics, Health issues, Home office, Indoor air quality, Indoor environmental quality, Performance, Single-family house, Working environment, Ventilation
National Category
Building Technologies
Identifiers
urn:nbn:se:du-45875 (URN)10.26868/25222708.2021.30129 (DOI)2-s2.0-85151541309 (Scopus ID)9781775052029 (ISBN)
Conference
17th IBPSA Conference Bruges, Belgium, Sept. 1-3, 2021
Available from: 2023-04-21 Created: 2023-04-21 Last updated: 2023-04-21Bibliographically approved
Zhang, X., Shen, J., Saini, P., Lovati, M., Han, M., Huang, P. & Huang, Z. (2021). Digital Twin for Accelerating Sustainability in Positive Energy District: A Review of Simulation Tools and Applications. Frontiers in Sustainable Cities, 3, Article ID 663269.
Open this publication in new window or tab >>Digital Twin for Accelerating Sustainability in Positive Energy District: A Review of Simulation Tools and Applications
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2021 (English)In: Frontiers in Sustainable Cities, E-ISSN 2624-9634, Vol. 3, article id 663269Article, review/survey (Refereed) Published
Abstract [en]

A digital twin is regarded as a potential solution to optimize positive energy districts (PED). This paper presents a compact review about digital twins for PED from aspects of concepts, working principles, tools/platforms, and applications, in order to address the issues of both how a digital PED twin is made and what tools can be used for a digital PED twin. Four key components of digital PED twin are identified, i.e., a virtual model, sensor network integration, data analytics, and a stakeholder layer. Very few available tools now have full functions for digital PED twin, while most tools either have a focus on industrial applications or are designed for data collection, communication and visualization based on building information models (BIM) or geographical information system (GIS). Several observations gained from successful application are that current digital PED twins can be categorized into three tiers: (1) an enhanced version of BIM model only, (2) semantic platforms for data flow, and (3) big data analysis and feedback operation. Further challenges and opportunities are found in areas of data analysis and semantic interoperability, business models, data security, and management. The outcome of the review is expected to provide useful information for further development of digital PED twins and optimizing its sustainability.

National Category
Building Technologies Energy Systems
Identifiers
urn:nbn:se:du-37708 (URN)10.3389/frsc.2021.663269 (DOI)000751872400043 ()2-s2.0-85115005557 (Scopus ID)
Available from: 2021-07-08 Created: 2021-07-08 Last updated: 2023-04-14Bibliographically approved
Shen, J., Zhang, X. & Saini, P. (2021). Machine learning and artificial intelligence for digital twin to accelerate sustainability in positive energy districts. In: Xingxing Zhang (Ed.), Data-driven Analytics for Sustainable Buildings and Cities: From Theory to Application. Singarpore: Springer
Open this publication in new window or tab >>Machine learning and artificial intelligence for digital twin to accelerate sustainability in positive energy districts
2021 (English)In: Data-driven Analytics for Sustainable Buildings and Cities: From Theory to Application / [ed] Xingxing Zhang, Singarpore: Springer, 2021Chapter in book (Refereed)
Place, publisher, year, edition, pages
Singarpore: Springer, 2021
National Category
Energy Systems Building Technologies
Identifiers
urn:nbn:se:du-37237 (URN)10.1007/978-981-16-2778-1 (DOI)978-981-16-2778-1 (ISBN)978-981-16-2777-4 (ISBN)
Available from: 2021-06-02 Created: 2021-06-02 Last updated: 2023-04-14Bibliographically approved
Koke, J., Schippmann, A., Shen, J., Zhang, X., Kaufmann, P. & Krause, S. (2021). Strategies of Design Concepts and Energy Systems for NearlyZero‐Energy Container Buildings (NZECBs) inDifferent Climates. Buildings, 11(8), Article ID 364.
Open this publication in new window or tab >>Strategies of Design Concepts and Energy Systems for NearlyZero‐Energy Container Buildings (NZECBs) inDifferent Climates
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2021 (English)In: Buildings, E-ISSN 2075-5309, Vol. 11, no 8, article id 364Article in journal (Refereed) Published
National Category
Building Technologies
Research subject
Energy and Built Environments, ENSECO - Produktion och process för utformning och konstruktion av energisjälvförsörjande containerbyggnader
Identifiers
urn:nbn:se:du-37904 (URN)10.3390/buildings11080364 (DOI)000689029300001 ()2-s2.0-85113361612 (Scopus ID)
Available from: 2021-08-18 Created: 2021-08-18 Last updated: 2024-01-17Bibliographically approved
Shen, J., Huang, P. & Zhang, X. (2021). Tailoring future climate information for building energy simulation. In: Xingxing Zhang (Ed.), Data-driven analytics for sustainable buildings and cities: from theory to application. Singarpore: Springer
Open this publication in new window or tab >>Tailoring future climate information for building energy simulation
2021 (English)In: Data-driven analytics for sustainable buildings and cities: from theory to application / [ed] Xingxing Zhang, Singarpore: Springer, 2021Chapter in book (Refereed)
Place, publisher, year, edition, pages
Singarpore: Springer, 2021
National Category
Building Technologies Energy Systems
Identifiers
urn:nbn:se:du-37238 (URN)10.1007/978-981-16-2778-1 (DOI)978-981-16-2778-1 (ISBN)978-981-16-2777-4 (ISBN)
Available from: 2021-06-02 Created: 2021-06-02 Last updated: 2023-04-14Bibliographically approved
Projects
Integrerad tillgångsförvaltning för belysning i allmänna bibliotek genom Digital Tvilling; Publications
Shen, J. (2023). A Critical Review of Lighting Design and Asset Management Strategies: Illuminating Practices and Lessons Learned for Swedish Public Libraries. In: 13th Nordic Symposium on Building Physics, NSB 2023 proceedings: . Paper presented at 13th Nordic Symposium on Building Physics, Aalborg, Denmark on 12-14 June 2023. Aalborg, Denmark
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-0239-9214

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