Study of the Improvement on Energy Efficiency for a Building in the Mediterranean Area by the Installation of a Green Roof System
Abstract
:1. Introduction
2. Experimental Setup
Building Description
3. Experimental Results
4. Simulation Results
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
- Jim, C.Y. Green roof evolution through exemplars: Germinal prototypes to modern variants. Sustain. Cities Soc. 2017, 35, 69–82. [Google Scholar] [CrossRef]
- Dos Santos, S.M.; Silva, J.F.F.; dos Santos, G.C.; de Macedo, P.M.T.; Gavazza, S. Integrating conventional and green roofs for mitigating thermal discomfort and water scarcity in urban areas. J. Clean. Prod. 2019, 219, 639–648. [Google Scholar] [CrossRef]
- Ferrans, P.; Rey, C.V.; Pérez, G.; Rodríguez, J.P.; Díaz-Granados, M. Effect of green roof configuration and hydrological variables on runoff water quantity and quality. Water 2018, 10, 960. [Google Scholar] [CrossRef] [Green Version]
- Gómez, F.; Valcuende, M.; Matzarakis, A.; Cárcel-Carrasco, J. Design of natural elements in open spaces of cities with a Mediterranean climate, conditions for comfort and urban ecology. Environ. Sci. Pollut. Res. 2018, 25, 26643–26652. [Google Scholar] [CrossRef] [PubMed]
- Chen, X.; Shuai, C.; Chen, Z.; Zhang, Y. What are the root causes hindering the implementation of green roofs in urban China? Sci. Total Environ. 2019, 654, 742–750. [Google Scholar] [CrossRef] [PubMed]
- Radhi, H.; Sharples, S.; Taleb, H.; Fahmy, M. Will cool roofs improve the thermal performance of our built environment? A study assessing roof systems in Bahrain. Energy Build. 2017, 135, 324–337. [Google Scholar] [CrossRef] [Green Version]
- Baik, J.J.; Kwak, K.H.; Park, S.B.; Ryu, Y.H. Effects of building roof greening on air quality in street canyons. Atmospheric Environ. 2012, 61, 48–55. [Google Scholar] [CrossRef]
- Shafique, M.; Kim, R.; Rafiq, M. Green roof benefits, opportunities and challenges–A review. Renew. Sustain. Energy Rev. 2018, 90, 757–773. [Google Scholar] [CrossRef]
- Goussous, J.; Siam, H.; Alzoubi, H. Prospects of green roof technology for energy and thermal benefits in buildings: Case of Jordan. Sustain. Cities Soc. 2015, 14, 425–440. [Google Scholar] [CrossRef]
- Yang, W.; Wang, Z.; Cui, J.; Zhu, Z.; Zhao, X. Comparative study of the thermal performance of the novel green (planting) roofs against other existing roofs. Sustain. Cities Soc. 2015, 16, 1–12. [Google Scholar] [CrossRef]
- Foustalieraki, M.; Assimakopoulos, M.N.; Santamouris, M.; Pangalou, H. Energy performance of a medium scale green roof system installed on a commercial building using numerical and experimental data recorded during the cold period of the year. Energy Build. 2017, 135, 33–38. [Google Scholar] [CrossRef]
- Santamouris, M.; Pavlou, C.; Doukas, P.; Mihalakakou, G.; Synnefa, A.; Hatzibiros, A.; Patargias, P. Investigating and analysing the energy and environmental performance of an experimental green roof system installed in a nursery school building in Athens, Greece. Energy 2007, 32, 1781–1788. [Google Scholar] [CrossRef]
- Zhao, X.; Zuo, J.; Wu, G.; Huang, C. A bibliometric review of green building research 2000–2016. Archit. Sci. Rev. 2019, 62, 74–88. [Google Scholar] [CrossRef]
- Lee, E.J. A Study on Correlation between Improvement in Efficiency of PV and Green roof of Public Building. KIEAE J. 2013, 13, 111–118. [Google Scholar]
- Feng, C.; Meng, Q.; Zhang, Y. Theoretical and experimental analysis of the energy balance of extensive green roofs. Energy Build. 2010, 42, 959–965. [Google Scholar] [CrossRef]
- Tang, X.; Qu, M. Phase change and thermal performance analysis for green roofs in cold climates. Energy Build. 2016, 121, 165–175. [Google Scholar] [CrossRef]
- Jim, C.Y.; Tsang, S.W. Ecological energetics of tropical intensive green roof. Energy Build. 2011, 43, 2696–2704. [Google Scholar] [CrossRef]
- Bevilacqua, P.; Mazzeo, D.; Bruno, R.; Arcuri, N. Experimental investigation of the thermal performances of an extensive green roof in the Mediterranean area. Energy Build. 2016, 122, 63–79. [Google Scholar] [CrossRef]
- Susca, T. Green roofs to reduce building energy use? A review on key structural factors of green roofs and their effects on urban climate. Build. Environ. 2019, 162, 106273. [Google Scholar] [CrossRef]
- Ávila-Hernández, A.; Simá, E.; Xamán, J.; Hernández-Pérez, I.; Téllez-Velázquez, E.; Chagolla-Aranda, M.A. Test box experiment and simulations of a green-roof: Thermal and energy performance of a residential building standard for Mexico. Energy Build. 2020, 209, 109709. [Google Scholar] [CrossRef]
- Tian, Z.; Lei, Y.; Gu, X. Building Energy Impacts of Simple Green Roofs in the Hot Summer and Cold Winter Climate Zone: Suzhou as a Study Case. Procedia Eng. 2017, 205, 2918–2924. [Google Scholar] [CrossRef]
- Coma, J.; Pérez, G.; Solé, C.; Castell, A.; Cabeza, L.F. Thermal assessment of extensive green roofs as passive tool for energy savings in buildings. Renew. Energy 2016, 85, 1106–1115. [Google Scholar] [CrossRef] [Green Version]
Thermocouple # | Position |
---|---|
T1 | Below first level layer (gravel or growth medium) |
T2 | Under XPS insulation layer |
T3 | Under insulated layer in the area not covered by the green roof. (Used as a reference) |
T4 | Outdoors of the building |
T5 | Indoors of the building |
T6 | Internal side of the roof |
Dates | Conventional | Roof | Green | Roof |
---|---|---|---|---|
Winter | Summer | Winter | Summer | |
November 2017 to February 2018 | July to October 2017 | November 2018 to February 2019 | July to October 2018 | |
Maximum power demand (kW) | 13.7 | 19.4 | 16.6 | 16.4 |
Daily energy consumption range (kWh) | 20–25 | 30–35 | 24–28 | 20–25 |
Average daily consumption (kWh) | 22.6 | 31.3 | 26.6 | 21.9 |
Range of Top roof temperature (°C) | 20–30 | 45–55 | 5–15 | 22–35 |
Energy and Power Demand | Winter | Summer |
---|---|---|
Maximum peak power demand (kW) | +17% | −15% |
Average daily consumption (kWh) | +15% | −30% |
Roof Type | Summer (kWh) | Winter (kWh) | Annual (kWh) |
---|---|---|---|
Conventional Roof | 12,400 | 6083 | 18,483 |
Green Roof | 9300 | 6813 | 16,113 |
Simulation Results | Summer | Winter | Annual |
---|---|---|---|
Cooling Demand Reduction | Heating Demand Reduction | Total Reduction | |
Total Energy Savings (%) | 25% | −12% | 19% |
Energy Reduction (kWh) | 3100 | −730 | 3780 |
Peak Power Savings (%) | 33% | −6% | - |
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Peñalvo-López, E.; Cárcel-Carrasco, J.; Alfonso-Solar, D.; Valencia-Salazar, I.; Hurtado-Pérez, E. Study of the Improvement on Energy Efficiency for a Building in the Mediterranean Area by the Installation of a Green Roof System. Energies 2020, 13, 1246. https://doi.org/10.3390/en13051246
Peñalvo-López E, Cárcel-Carrasco J, Alfonso-Solar D, Valencia-Salazar I, Hurtado-Pérez E. Study of the Improvement on Energy Efficiency for a Building in the Mediterranean Area by the Installation of a Green Roof System. Energies. 2020; 13(5):1246. https://doi.org/10.3390/en13051246
Chicago/Turabian StylePeñalvo-López, Elisa, Javier Cárcel-Carrasco, David Alfonso-Solar, Iván Valencia-Salazar, and Elias Hurtado-Pérez. 2020. "Study of the Improvement on Energy Efficiency for a Building in the Mediterranean Area by the Installation of a Green Roof System" Energies 13, no. 5: 1246. https://doi.org/10.3390/en13051246