Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis
Retrofitting building envelopes is regarded as an effective solution that can help commercial and individual investors offset daily power usage. However, it is worthwhile to explore a highly efficient approach to seek optimum retrofitting strategies. A novel hybrid approach that integrates energy si...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/161177 |
| _version_ | 1811677789808492544 |
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| author | Li, Hong Xian Li, Yan Jiang, Boya Zhang, Limao Wu, Xianguo Lin, Jingyi |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Li, Hong Xian Li, Yan Jiang, Boya Zhang, Limao Wu, Xianguo Lin, Jingyi |
| author_sort | Li, Hong Xian |
| collection | NTU |
| description | Retrofitting building envelopes is regarded as an effective solution that can help commercial and individual investors offset daily power usage. However, it is worthwhile to explore a highly efficient approach to seek optimum retrofitting strategies. A novel hybrid approach that integrates energy simulation, Orthogonal Array Testing (OAT), and Data Envelopment Analysis (DEA) is developed in this research to discover optimal solutions for building retrofit. A commercial high-rise building is chosen as a case study, and five parameters are considered, including the exterior envelope fabric, exterior window type, sunshade type, window-to-wall ratio, and airtightness. The energy consumption is first simulated and verified as a baseline. OAT is then employed to conduct experiments and explore potential solutions to the energy optimisation problem, based on which the most efficient strategy is obtained through DEA benchmarking. The identified optimal solution is able to save an annual operation energy of 7.01 kWh/m2, which is also cost-effective. It is also found that the window type and airtightness are significant factors with regard to the energy performance of building envelope retrofit. The study benefits designers and construction managers in determining the optimal solution of retrofitting building envelope for achieving energy-efficient building operations. |
| first_indexed | 2024-10-01T02:42:57Z |
| format | Journal Article |
| id | ntu-10356/161177 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:42:57Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1611772022-08-17T07:44:52Z Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis Li, Hong Xian Li, Yan Jiang, Boya Zhang, Limao Wu, Xianguo Lin, Jingyi School of Civil and Environmental Engineering Engineering::Civil engineering Building Envelope Retrofit Energy Optimisation Retrofitting building envelopes is regarded as an effective solution that can help commercial and individual investors offset daily power usage. However, it is worthwhile to explore a highly efficient approach to seek optimum retrofitting strategies. A novel hybrid approach that integrates energy simulation, Orthogonal Array Testing (OAT), and Data Envelopment Analysis (DEA) is developed in this research to discover optimal solutions for building retrofit. A commercial high-rise building is chosen as a case study, and five parameters are considered, including the exterior envelope fabric, exterior window type, sunshade type, window-to-wall ratio, and airtightness. The energy consumption is first simulated and verified as a baseline. OAT is then employed to conduct experiments and explore potential solutions to the energy optimisation problem, based on which the most efficient strategy is obtained through DEA benchmarking. The identified optimal solution is able to save an annual operation energy of 7.01 kWh/m2, which is also cost-effective. It is also found that the window type and airtightness are significant factors with regard to the energy performance of building envelope retrofit. The study benefits designers and construction managers in determining the optimal solution of retrofitting building envelope for achieving energy-efficient building operations. Ministry of Education (MOE) Nanyang Technological University The National Natural Science Foundation of China (Grant No.51708282), the Start-Up Grant at Nanyang Technological University, Singapore (No. M4082160.030), and the Ministry of Education Grant, Singapore (No. M4011971.030) are acknowledged for their financial support of this research. 2022-08-17T07:44:52Z 2022-08-17T07:44:52Z 2020 Journal Article Li, H. X., Li, Y., Jiang, B., Zhang, L., Wu, X. & Lin, J. (2020). Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis. Renewable Energy, 149, 1414-1423. https://dx.doi.org/10.1016/j.renene.2019.10.143 0960-1481 https://hdl.handle.net/10356/161177 10.1016/j.renene.2019.10.143 2-s2.0-85074439874 149 1414 1423 en M4082160.030 M4011971.030 Renewable Energy © 2019 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Building Envelope Retrofit Energy Optimisation Li, Hong Xian Li, Yan Jiang, Boya Zhang, Limao Wu, Xianguo Lin, Jingyi Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis |
| title | Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis |
| title_full | Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis |
| title_fullStr | Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis |
| title_full_unstemmed | Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis |
| title_short | Energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis |
| title_sort | energy performance optimisation of building envelope retrofit through integrated orthogonal arrays with data envelopment analysis |
| topic | Engineering::Civil engineering Building Envelope Retrofit Energy Optimisation |
| url | https://hdl.handle.net/10356/161177 |
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