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Conference Paper: Impact of passive design measures on energy performance gap: A case study of high-rise residential buildings in Hong Kong
| Title | Impact of passive design measures on energy performance gap: A case study of high-rise residential buildings in Hong Kong |
|---|---|
| Authors | |
| Issue Date | 23-Jan-2024 |
| Publisher | Applied Energy Innovation Institute (AEii) |
| Abstract | Passive design measures were regarded as a method to address the energy performance gap (EPG) in buildings. However, there is a lack of quantification of the impact of passive design measures on the EPG. This study aims to quantify the impact of passive design measures on the EPG using a case study of high-rise residential buildings in Hong Kong. First, key passive design variables were identified through a literature review, including window-to-wall ratio and window type. Second, an as-designed energy model and an as-occupied energy model were built using DesignBuilder and EnergyPlus. Third, sensitivity analysis was conducted using passive design variables as inputs in both the as-designed and as-occupied energy models. Results show that the EPG of the case building was about 16%. The window type has a greater impact on the EPG than window-to-wall ratio. This study demonstrates the potential of passive design measures for closing the EPG. |
| Persistent Identifier | http://hdl.handle.net/10722/342199 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Bai, Yefei | - |
| dc.contributor.author | Pan, Wei | - |
| dc.contributor.author | Yu, Cong | - |
| dc.date.accessioned | 2024-04-17T03:49:57Z | - |
| dc.date.available | 2024-04-17T03:49:57Z | - |
| dc.date.issued | 2024-01-23 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/342199 | - |
| dc.description.abstract | <p>Passive design measures were regarded as a method to address the energy performance gap (EPG) in buildings. However, there is a lack of quantification of the impact of passive design measures on the EPG. This study aims to quantify the impact of passive design measures on the EPG using a case study of high-rise residential buildings in Hong Kong. First, key passive design variables were identified through a literature review, including window-to-wall ratio and window type. Second, an as-designed energy model and an as-occupied energy model were built using DesignBuilder and EnergyPlus. Third, sensitivity analysis was conducted using passive design variables as inputs in both the as-designed and as-occupied energy models. Results show that the EPG of the case building was about 16%. The window type has a greater impact on the EPG than window-to-wall ratio. This study demonstrates the potential of passive design measures for closing the EPG.<br></p> | - |
| dc.language | eng | - |
| dc.publisher | Applied Energy Innovation Institute (AEii) | - |
| dc.relation.ispartof | The 15th International Conference on Applied Energy (ICAE2023) (03/12/2023-07/12/2023, , , Doha) | - |
| dc.title | Impact of passive design measures on energy performance gap: A case study of high-rise residential buildings in Hong Kong | - |
| dc.type | Conference_Paper | - |
| dc.identifier.doi | 10.46855/energy-proceedings-11021 | - |
| dc.identifier.volume | 43 | - |