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Economic and Thermal Evaluation of Different Uses of an Existing Structure in a Warm Climate

Author

Listed:
  • Delia D’Agostino

    (European Commission, Joint Research Centre (JRC), Directorate C—Energy efficiency and Renewables, Via E. Fermi 2749, I-21027 Ispra, VA, Italy)

  • Ilaria Zacà

    (Department of Engineering for Innovation, University of Salento, I-73100 Lecce, Italy)

  • Cristina Baglivo

    (Department of Engineering for Innovation, University of Salento, I-73100 Lecce, Italy)

  • Paolo Maria Congedo

    (Department of Engineering for Innovation, University of Salento, I-73100 Lecce, Italy)

Abstract

Accounting for nearly 40% of final energy consumption, buildings are central to European energy policy. The Directive on Energy Performance of Buildings establishes a benchmarking system known as cost-optimality to set minimum energy performance requirements in new and existing buildings. This paper applies the cost-optimal methodology to an existing structure located in the Mediterranean area (Southern Italy). The building is composed of two units that have been considered for different uses: hotel and multi-residential. Several energy efficiency and renewable measures have been implemented both individually and as part of packages of measures. The cost-optimal solution has been identified as able to optimize energy consumption and costs from financial and macroeconomic perspectives. The first reference building (hotel use) shows a maximum reduction of primary energy and CO 2 emission of about 42%, falling within the CasaClima energy class D, while the second reference building (residential use) achieves a value of 88% for primary energy and 85% for CO 2 emissions, falling into class B. Thermal dispersions through the envelope can be limited using a suitable combination of insulating materials while a variety of technical variants are selected, such as VRF (variant refrigerant flow) systems, heat pumps with fan coils associated with controlled mechanical ventilation, solar thermal and photovoltaic. This paper illustrates the development of energy retrofit projects, in order to reach a balance between efficiency measures and costs for a building having two different uses, providing guidance to similar case studies related to a warm climate.

Suggested Citation

  • Delia D’Agostino & Ilaria Zacà & Cristina Baglivo & Paolo Maria Congedo, 2017. "Economic and Thermal Evaluation of Different Uses of an Existing Structure in a Warm Climate," Energies, MDPI, vol. 10(5), pages 1-29, May.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:5:p:658-:d:98026
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    References listed on IDEAS

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    8. Paolo Maria Congedo & Delia D’Agostino & Cristina Baglivo & Giuliano Tornese & Ilaria Zacà, 2016. "Efficient Solutions and Cost-Optimal Analysis for Existing School Buildings," Energies, MDPI, vol. 9(10), pages 1-24, October.
    9. Congedo, Paolo Maria & Baglivo, Cristina & D'Agostino, Delia & Zacà, Ilaria, 2015. "Cost-optimal design for nearly zero energy office buildings located in warm climates," Energy, Elsevier, vol. 91(C), pages 967-982.
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    Cited by:

    1. Yuting Qi & Queena K. Qian & Frits M. Meijer & Henk J. Visscher, 2019. "Identification of Quality Failures in Building Energy Renovation Projects in Northern China," Sustainability, MDPI, vol. 11(15), pages 1-23, August.
    2. Pen-Kai Wang & Shen-Guan Shih & Yeng-Horng Perng, 2020. "Competitive Advantage Evaluation Model of Sustainable Housing Design," Sustainability, MDPI, vol. 12(15), pages 1-12, July.
    3. D'Agostino, Delia & Congedo, Paolo Maria & Albanese, Paola Maria & Rubino, Alessandro & Baglivo, Cristina, 2024. "Impact of climate change on the energy performance of building envelopes and implications on energy regulations across Europe," Energy, Elsevier, vol. 288(C).
    4. Baglivo, Cristina & Congedo, Paolo Maria & Murrone, Graziano & Lezzi, Dalila, 2022. "Long-term predictive energy analysis of a high-performance building in a mediterranean climate under climate change," Energy, Elsevier, vol. 238(PA).
    5. Paolo Maria Congedo & Cristina Baglivo & Giovanni Quarta & Pasquale Di Gloria & Delia D’Agostino, 2022. "Definition of a Protocol for the Experimental Monitoring of Rising Damp in Three Different Masonry Models with Tuff, Carparo, and Lecce Stone," Energies, MDPI, vol. 15(3), pages 1-22, January.
    6. D'Agostino, D. & Parker, D. & Epifani, I. & Crawley, D. & Lawrie, L., 2022. "How will future climate impact the design and performance of nearly zero energy buildings (NZEBs)?," Energy, Elsevier, vol. 240(C).
    7. Miłosz Raczyński & Radosław Rutkowski, 2020. "How Pro-Environmental Legal Regulations Affect the Design Process and Management of Multi-Family Residential Buildings in Poland," Energies, MDPI, vol. 13(20), pages 1-23, October.
    8. Delia D’Agostino & Danny Parker & Ilenia Epifani & Dru Crawley & Linda Lawrie, 2022. "Datasets on Energy Simulations of Standard and Optimized Buildings under Current and Future Weather Conditions across Europe," Data, MDPI, vol. 7(5), pages 1-18, May.

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