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Building Retrofitting through Coupling of Building Energy Simulation-Optimization Tool with CFD and Daylight Programs
| Content Provider | MDPI |
|---|---|
| Author | Rabani, Mehrdad Madessa, Habtamu Bayera Nord, Natasa |
| Copyright Year | 2021 |
| Description | Simultaneous satisfaction of both thermal and visual comfort in buildings may be a challenging task. Therefore, this paper suggests a comprehensive framework for the building energy optimization process integrating computational fluid dynamics (CFD) daylight simulations. A building energy simulation tool, IDA Indoor Climate and Energy (IDA-ICE), was coupled with three open-source tools including GenOpt, OpenFOAM, and Radiance. In the optimization phase, several design variables i.e., building envelope properties, fenestration parameters, and Heating, Ventilation and Air-Conditioning (HVAC) system set points, were selected to minimize the total building energy use and simultaneously improve thermal and visual comfort. Two different scenarios were investigated for retrofitting of a generic office building located in Oslo, Norway. In the first scenario a constant air volume (CAV) ventilation system with a local radiator in each zone was used, while an all-air system equipped with a demand control ventilation (DCV) was applied in the second scenario. Findings showed that, compared to the reference design, significant reduction of total building energy use, around 77% and 79% in the first and second scenarios, was achieved respectively, and thermal and visual comfort conditions were also improved considerably. However, the overall thermal and visual comfort satisfactions were higher when all-air system was applied. |
| Starting Page | 2180 |
| e-ISSN | 19961073 |
| DOI | 10.3390/en14082180 |
| Journal | Energies |
| Issue Number | 8 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-04-14 |
| Access Restriction | Open |
| Subject Keyword | Energies Civil Engineering Building Retrofitting Building Performance Optimization Cfd Daylight Analysis Thermal and Visual Comfort |
| Content Type | Text |
| Resource Type | Article |
