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| 2. |
- Hosseini, Mohammad, et al.
(författare)
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Collective Intelligence Function in Extreme Weather Conditions : High-Resolution Impact Assessment of Energy Flexibility on Building Energy Performance
- 2023
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Ingår i: Proceedings of the 5th International Conference on Building Energy and Environment. - 1863-5520 .- 1863-5539. - 9789811998218 ; , s. 1395-1404
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Konferensbidrag (refereegranskat)abstract
- Collective intelligence (CI) in demand-side management (DSM) can enhance the flexibility of urban energy systems. Extreme climates cause intensively high loads on the urban energy systems resulting in power outages. To avoid this, quick responses are needed from buildings to adjust their operation in favor of the grid. Most of the available approaches are computationally expensive. CI-DSM offers a simpler approach that relies on distributed intelligence paradigm. It allows fast and (semi-) autonomous reactions to the continuously changing environment. This research investigates the application of CI-DSM in a residential building in the south of Sweden. The focus of the study is managing the building’s heating demand in an extremely cold winter. Heating setpoint and ventilation rate are defined as the adaptation measures. To activate the system and take an action by the agents, signals of 0/1 with 15-min intervals are sent, when heating demand exceeds the baseline. Managing the performance of buildings using CI-DSM could reduce the heating demand and peak power by 25% and 20%, respectively, over an extreme cold February compared to typical conditions.
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| 3. |
- Javanroodi, Kavan, et al.
(författare)
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Towards Resilient Interconnected Urban Infrastructures : The Nexus Between Energy System, Urban Morphology, and Transportation Network
- 2023
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Ingår i: Proceedings of the 5th International Conference on Building Energy and Environment. - 1863-5539 .- 1863-5520. - 9789811998218 ; , s. 2739-2749
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Konferensbidrag (refereegranskat)abstract
- Compound optimization of distributed energy systems, urban morphology, and the transportation network is crucial to improving the robustness of interconnected urban energy infrastructures and enhancing their resilience to extreme climate events. Available methods and tools mainly focus on optimizing one component in urban areas and fail to consider complex interactions in interconnected infrastructures. This study introduces a compound optimization methodology that optimizes the energy system in connection with urban morphology and electric vehicle (EV) charging demands. In this regard, the energy demand of five multi-functional urban neighborhoods is assessed and optimized considering 13 climate scenarios (2010–2099). Results showed a significant improvement in autonomy level and a notable reduction of infrastructure costs (over 40%) by linking these three sectors. It is also shown that energy demand can increase up to 17% in extreme weather conditions, leading to over 30% infrastructure costs.
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| 4. |
- Larsson, Lennart, et al.
(författare)
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An Emissions Barrier Stops Spread of Harmful Emissions from a Building into the Indoor Air
- 2023
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Ingår i: Proceedings of the 5th International Conference on Building Energy and Environment. - 1863-5539 .- 1863-5520. - 9789811998218 ; , s. 1963-1966
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Konferensbidrag (refereegranskat)abstract
- An emissions barrier was used in premises with indoor air complaints due to emissions from the buildings in question. The emissions comprised chlorophenols/chloroanisoles and polycyclic aromatic hydrocarbons (PAH) from treated wood, volatile organic compounds (VOC) from PVC flooring and/or the glue used to paste the flooring onto a concrete slab, and radon from radium-containing aerated concrete. Attaching the barrier at the surfaces from where the emissions were spread (floor, walls, ceiling) resulted in a fresh and odour-free indoor air and a substantial decrease of the emissions. We conclude that using an emissions barrier in buildings may be an efficient way of restoring a pleasant and healthy indoor air.
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| 5. |
- Nik, Vahid M., et al.
(författare)
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Impacts of Collective Communication on the Energy Flexibility and Climate Resilience of Buildings in Urban Areas
- 2023
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Ingår i: Proceedings of the 5th International Conference on Building Energy and Environment. - 1863-5539 .- 1863-5520. - 9789811998218 ; , s. 1091-1097
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Konferensbidrag (refereegranskat)abstract
- A novel approach for demand side management (DSM) in urban areas was introduced previously based on collective intelligence (CI), called CI-DSM. It was shown that CI-DSM can enhance energy flexibility and climate resilience in urban areas while having a simple communication logic and light computation. The communication signal (0 or 1) is (gradually) distributed among the agents in the energy system, including buildings. Therefore, the communication logic can affect the performance of the whole system, especially during extreme weather events. This work investigates the impact of two communication logics on the energy performance of buildings during an extreme cold January in a hypothetical neighborhood in Stockholm. According to the results, the selected communication logic does not affect total energy demand considerably, however the impacts are visible on the indoor thermal comfort, especially during very cold hours.
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