| 1. |
- Diaz, Muriel, et al.
(författare)
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Multicriteria Design: Optimizing Thermal, Acoustic, and Visual Comfort and Indoor Air Quality in Classrooms
- 2023
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Ingår i: Green Energy and Technology. - 1865-3529 .- 1865-3537. ; , s. 435-449
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Indoor Environmental Quality (IEQ) is a crucial for ensuring comfortable and healthy indoor spaces, and it is influenced by four primary factors: thermal comfort, acoustic comfort, visual comfort, and air quality. These aspects have a combined influence on the overall perception of comfort, and therefore, need to be assessed with a holistic approach. This chapter presents design strategies that would generate the indoor environmental conditions needed to ensure IEQ in school classrooms in the Global South. First, the design strategies are identified and classified for each aspect of IEQ based on a literature review. Then they are organized, and conflicting design strategies are identified. Finally, a design workflow for the incorporation of passive design strategies in school classrooms is presented.
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| 2. |
- Gonzalez Caceres, Alex Arnoldo, 1982, et al.
(författare)
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Application and validation of a method to assess the energy reduction and environmental impact of renovation alternatives
- 2023
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Ingår i: IOP Conference Series: Earth and Environmental Science. - 1755-1307 .- 1755-1315. ; 1196:1
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Konferensbidrag (refereegranskat)abstract
- The renovation of residential stock is one of the most promising areas, in terms of energy reduction, because these buildings are highly inefficient and represent the largest part of the building stock. However, the environmental impact assessment over the life cycle of building renovation is rare. It is more common to develop an assessment for new buildings. This study presents a method that combines the evaluation of the benefits of renovating residential buildings, considering cost, energy and environmental benefits using Life Cycle Assessment (LCA). The method is based on 3 stages of development. First, the database of energy certificates, costs and LCA was analysed. The second step is to develop a workflow in Rhino/Grasshopper/E-Plus to automatically model a residential building and feed the simulation model with the data obtained from the databases. Finally, a simulation campaign was carried out to obtain an optimal renovation package, minimising energy consumption and environmental impact. The research was carried out in a case study in Uddevalla, Sweden. The residential building has different measurements including energy consumption data before and after renovation. This was used to validate the proposed methodology. The validation shows that accurate results are achievable with potential for mass application.
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| 3. |
- Gonzalez Caceres, Alex Arnoldo, 1982, et al.
(författare)
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Evaluation of cost-effective measures for the renovation of existing dwellings in the framework of the energy certification system: A case study in Norway
- 2022
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Ingår i: Energy and Buildings. - : Elsevier BV. - 0378-7788. ; 264
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Tidskriftsartikel (refereegranskat)abstract
- The Energy Performance Certificate (EPC) for existing dwellings has not been able to promote the renovation rate. The main reasons are associated with the low quality of the assessment and renovation recommendations provided. These are not able to provide the information or confidence needed to undertake a renovation project. So far, neither reports for the EPBD nor studies by researchers have proposed modifications to the model used to assess existing buildings under the EPBD. The present research proposes a procedure to evaluate, design improvements, store and share data on the renovation process of each building. Specifically, the procedure is based on three steps, the first one is to apply simplified measurements on the dwelling, laser scanning and envelope testing. The second stage, using the electricity consumption data, was to calibrate and calculate the thermal properties of the building. Finally, tailor-made recommendations for the whole life cycle of the house are proposed and stored in a database. After an optimisation and life cycle analysis of different measurement packages. The results show that by incorporating currently available tools, such as scanners, smart meters and BIM, a complete building condition profile can be obtained, stored and shared, and renovation measures with their benefits and costs can be realistically proposed. This study is in line with what has been proposed by previous studies, the need to digitise the certification system, to use new technologies and to capture the trust of the users.
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| 4. |
- Gonzalez Caceres, Alex Arnoldo, 1982, et al.
(författare)
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The use of synthesised data for the development of Digital Twin: Chalmers student house case study
- 2023
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Ingår i: Journal of Physics: Conference Series. - 1742-6588 .- 1742-6596. ; 2600:8
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Konferensbidrag (refereegranskat)abstract
- This research focuses on the development of a digital twin for a residential building using a synthesised data approach. The methodology involves five stages, with three of them dedicated to simulating different energy scenarios: actual energy consumption, passive house level consumption, and consumption after the implementation of smart building technology. The selected building is located at the Chalmers Technical University campus in Sweden. Synthesised data is used to simulate the energy demand of the building before and after renovation, as well as after the implementation of smart building technology. A custom agent-based simulation model is developed to simulate the impact of residents' behaviours on the building's energy consumption, and high-resolution data was analysed and synthesised to create a new dataset that was applied to the selected buildings. Finally, the results of the simulations were analysed and compared to assess the potential energy savings and improved energy performance achieved through the implementation of different scenarios. The study provides insights into the energy-efficiency of different measures for reducing energy consumption in residential buildings. The study provides insights into the energy-efficiency of different measures for reducing energy consumption in residential buildings. This research shows the potential of using synthesised data to assess and forecast changes in building stock transformation, even when real data are not available.
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| 5. |
- Gonzalez Caceres, Alex Arnoldo, 1982, et al.
(författare)
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Towards digital twinning for multi-domain simulation workflows in urban design: a case study in Gothenburg
- 2024
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Ingår i: Journal of Building Performance Simulation. - 1940-1493 .- 1940-1507. ; In Press
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Tidskriftsartikel (refereegranskat)abstract
- This work proposes an automated workflow using digital twinning for multi-domain environmental performance analysis of urban developments. Digital twins can potentially provide a common basis for multi-domain simulations and help overcome data availability and interoperability issues. The proposed workflow consists of five steps: (1) creating a procedural urban 3D model, (2) generating design alternatives parametrically, (3) exporting the context and each design alternative to each simulation tool, (4) running simulations for wind comfort, energy demand, and noise for each design alternative, and (5) combining and visualizing the simulation results using the digital twin. The workflow was applied to a neighbourhood in Sweden, the resultsreveal significant reduction in manual work when applying multiple simulation software for different domains. This is one step forward in streamlining the workflow for urban analysis, crucial for multi-domain optimization. In the future, further domains and simulation tools can be added to the workflow.
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