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Energy Performance and Life-Cycle Analysis of Building Retrofits: A Case Study in Abu Dhabi

Received: 28 February 2024    Accepted: 15 March 2024    Published: 30 May 2024
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Abstract

Highly developed nations worldwide encounter a notable energy demand as their main obstacle. Furthermore, the building sector plays a significant role in contributing to carbon emissions and climate change. In the UAE, buildings consume the largest portion of energy due to the improper selection of design parameters during the building's design phase, which are specifically tailored for the remarkably hot climate in the country. As a result, various studies, initiatives, and policies are focused on enhancing the energy efficiency of buildings. Additionally, retrofitting existing buildings has emerged as a crucial approach to achieving energy efficiency, resulting in several benefits such as reduced costs for operation and maintenance. This research performed an analysis of a commercial building in Abu Dhabi using DesignBuilder, based on energy modeling and simulation. Five main retrofits were examined, accompanied by a cost analysis to determine the most appropriate retrofit for future investments. The results demonstrate that increasing the cooling set point temperature by 4 degrees led to a 19.53% decrease in the annual cooling load. Additionally, retrofitting the chiller resulted in a 16.11% reduction in the annual cooling load, whereas wall insulation had the least impact as a retrofit. It was observed that improving the chiller's coefficient of performance (COP) offered significant advantages, with a payback period of around 5 years, making it the most favorable retrofit for investment. However, the glazing and wall insulation retrofits were considered less beneficial due to their high initial costs and long payback periods.

Published in International Journal of Economy, Energy and Environment (Volume 9, Issue 2)
DOI 10.11648/j.ijeee.20240902.12
Page(s) 51-58
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Cost Analysis, Energy Consumption, Energy Efficiency, Retrofits

References
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[2] H. Radhi, “Evaluating the potential impact of global warming on the UAE residential buildings – A contribution to reduce the CO 2 emissions,” Build Environ, vol. 44, no. 12, pp. 2451–2462, 2009,
[3] E. Asadi, M. Gameiro, C. Henggeler, and L. Dias, “Multi-objective optimization for building retrofit strategies: A model and an application,” Energy Build, vol. 44, pp. 81–87, 2012,
[4] A. Afshari, C. Nikolopoulou, and M. Martin, “Life-cycle analysis of building retrofits at the urban scale-a case study in United Arab Emirates,” Sustainability (Switzerland), vol. 6, no. 1, pp. 453–473, 2014,
[5] Lal. Jayamaha, Energy-efficient building systems: green strategies for operation and maintenance. McGraw-Hill, 2007.
[6] University of New South Wales., International Academy for Production Engineering., Engineers Australia., and Informit., LCE 2008: 15th CIRP International Conference on Life Cycle Engineering; conference proceedings. [CIRP], 2008.
[7] L. F. Xiao, S. Wang, C. Yan, and F. Xiao, “Quantitative energy performance assessment methods for existing buildings,” Energy Build, vol. 55, no. December, pp. 873–888, 2012,
[8] C. Fluhrer, “Achieving Radically Energy Efficient Retrofits: The Empire State Building Example,” vol. 116, p. 2010, 2010.
[9] I. Nsw, “Business opportunities in a low carbon economy Final report Industry and Investment NSW,” no. September, 2010.
[10] M. Krarti and K. Dubey, “Review analysis of economic and environmental benefits of improving energy efficiency for UAE building stock,” Renewable and Sustainable Energy Reviews, vol. 82. Elsevier Ltd, pp. 14–24, 2018.
[11] A. Aldawoud, F. E. Hosny, and R. Mdkhana, “Energy retrofitting of school buildings in UAE,” Energy Engineering: Journal of the Association of Energy Engineering, vol. 117, no. 6, pp. 381–395, 2020,
[12] B. Akhozheya, M. Syam, R. Abdelghani, and K. A. T. Aoul, “Retrofit evaluation of a residential building in UAE: Energy efficiency and renewable energy,” in 5th International Conference on Renewable Energy: Generation and Application, ICREGA 2018, Institute of Electrical and Electronics Engineers Inc., Apr. 2018, pp. 238–242.
[13] Abu Dhabi Municipality, “Energy Efficiency Project for Sector E3-02,” 2010.
[14] Advanced Instruments, “The Importance of Calibration.”
[15] Designing Buildings, “Air tightness in buildings,” 2022.
[16] “Dubai Electricity & Water Authority (DEWA),” 2015.
[17] O. Jan, “Sensitivity Analysis,” 2019.
[18] K. Grygierek and I. Sarna, “Impact of passive cooling on thermal comfort in a single-family building for current and future climate conditions,” Energies (Basel), vol. 13, no. 20, Oct. 2020,
[19] P. Reviewed, L. Berkeley, and B. Cancer, “Energy Information Handbook: Applications for Energy-Efficient Building Operations,” no. July, pp. 35–43, 2010.
[20] J. D. Barbosa and E. Azar, “Modeling and implementing human-based energy retrofits in a green building in desert climate,” Energy Build, vol. 173, pp. 71–80, 2018,
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  • APA Style

    Alkaabi, N., Mayyas, A. (2024). Energy Performance and Life-Cycle Analysis of Building Retrofits: A Case Study in Abu Dhabi. International Journal of Economy, Energy and Environment, 9(2), 51-58. https://doi.org/10.11648/j.ijeee.20240902.12

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    ACS Style

    Alkaabi, N.; Mayyas, A. Energy Performance and Life-Cycle Analysis of Building Retrofits: A Case Study in Abu Dhabi. Int. J. Econ. Energy Environ. 2024, 9(2), 51-58. doi: 10.11648/j.ijeee.20240902.12

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    AMA Style

    Alkaabi N, Mayyas A. Energy Performance and Life-Cycle Analysis of Building Retrofits: A Case Study in Abu Dhabi. Int J Econ Energy Environ. 2024;9(2):51-58. doi: 10.11648/j.ijeee.20240902.12

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  • @article{10.11648/j.ijeee.20240902.12,
      author = {Noura Alkaabi and Ahmad Mayyas},
      title = {Energy Performance and Life-Cycle Analysis of Building Retrofits: A Case Study in Abu Dhabi
    },
      journal = {International Journal of Economy, Energy and Environment},
      volume = {9},
      number = {2},
      pages = {51-58},
      doi = {10.11648/j.ijeee.20240902.12},
      url = {https://doi.org/10.11648/j.ijeee.20240902.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijeee.20240902.12},
      abstract = {Highly developed nations worldwide encounter a notable energy demand as their main obstacle. Furthermore, the building sector plays a significant role in contributing to carbon emissions and climate change. In the UAE, buildings consume the largest portion of energy due to the improper selection of design parameters during the building's design phase, which are specifically tailored for the remarkably hot climate in the country. As a result, various studies, initiatives, and policies are focused on enhancing the energy efficiency of buildings. Additionally, retrofitting existing buildings has emerged as a crucial approach to achieving energy efficiency, resulting in several benefits such as reduced costs for operation and maintenance. This research performed an analysis of a commercial building in Abu Dhabi using DesignBuilder, based on energy modeling and simulation. Five main retrofits were examined, accompanied by a cost analysis to determine the most appropriate retrofit for future investments. The results demonstrate that increasing the cooling set point temperature by 4 degrees led to a 19.53% decrease in the annual cooling load. Additionally, retrofitting the chiller resulted in a 16.11% reduction in the annual cooling load, whereas wall insulation had the least impact as a retrofit. It was observed that improving the chiller's coefficient of performance (COP) offered significant advantages, with a payback period of around 5 years, making it the most favorable retrofit for investment. However, the glazing and wall insulation retrofits were considered less beneficial due to their high initial costs and long payback periods.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - Energy Performance and Life-Cycle Analysis of Building Retrofits: A Case Study in Abu Dhabi
    
    AU  - Noura Alkaabi
    AU  - Ahmad Mayyas
    Y1  - 2024/05/30
    PY  - 2024
    N1  - https://doi.org/10.11648/j.ijeee.20240902.12
    DO  - 10.11648/j.ijeee.20240902.12
    T2  - International Journal of Economy, Energy and Environment
    JF  - International Journal of Economy, Energy and Environment
    JO  - International Journal of Economy, Energy and Environment
    SP  - 51
    EP  - 58
    PB  - Science Publishing Group
    SN  - 2575-5021
    UR  - https://doi.org/10.11648/j.ijeee.20240902.12
    AB  - Highly developed nations worldwide encounter a notable energy demand as their main obstacle. Furthermore, the building sector plays a significant role in contributing to carbon emissions and climate change. In the UAE, buildings consume the largest portion of energy due to the improper selection of design parameters during the building's design phase, which are specifically tailored for the remarkably hot climate in the country. As a result, various studies, initiatives, and policies are focused on enhancing the energy efficiency of buildings. Additionally, retrofitting existing buildings has emerged as a crucial approach to achieving energy efficiency, resulting in several benefits such as reduced costs for operation and maintenance. This research performed an analysis of a commercial building in Abu Dhabi using DesignBuilder, based on energy modeling and simulation. Five main retrofits were examined, accompanied by a cost analysis to determine the most appropriate retrofit for future investments. The results demonstrate that increasing the cooling set point temperature by 4 degrees led to a 19.53% decrease in the annual cooling load. Additionally, retrofitting the chiller resulted in a 16.11% reduction in the annual cooling load, whereas wall insulation had the least impact as a retrofit. It was observed that improving the chiller's coefficient of performance (COP) offered significant advantages, with a payback period of around 5 years, making it the most favorable retrofit for investment. However, the glazing and wall insulation retrofits were considered less beneficial due to their high initial costs and long payback periods.
    
    VL  - 9
    IS  - 2
    ER  - 

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