On the energy potential of daytime radiative cooling for urban heat island mitigation
| dc.contributor.author | Carlosena Remírez, Laura | |
| dc.contributor.author | Ruiz-Pardo, Álvaro | |
| dc.contributor.author | Feng, Jie | |
| dc.contributor.author | Irulegi, Olatz | |
| dc.contributor.author | Hernández-Minguillón, Rufino J. | |
| dc.contributor.author | Santamouris, Mattheos | |
| dc.contributor.department | Ingeniería | es_ES |
| dc.contributor.department | Ingeniaritza | eu |
| dc.date.accessioned | 2023-11-14T12:58:26Z | |
| dc.date.available | 2023-11-14T12:58:26Z | |
| dc.date.issued | 2020 | |
| dc.date.updated | 2023-11-14T12:48:01Z | |
| dc.description.abstract | The objective of this paper is to present the potential of daytime radiative cooling materials as a strategy to mitigate the Urban Heat Island effect. To evaluate the cooling potential of daytime radiative cooling materials, 15 theoretical materials and seven existing materials were simulated: two radiative cooling materials, a coolmaterial, two white paints, a thermochromic paint and a construction material. The novelty of this study is that it shows that the optimal spectral characteristics of radiative cooling materials depending on the climate conditions and the type of application. A sensitivity analysis was performed to evaluate the impact of each wavelength emissivity on the ability to achieve sub-ambient radiative cooling. The sensitivity analysis comprised a total of 90 theoretical materials with 15 different wavelength combinations and 6 emissivity values. The heat transfer model, which includes conduction, convection, and radiation, was developed using a spectrally-selective sky model. Two conditions were considered: a very conductive surface and a highly insulated one. All the materials were simulated in two cities that suffer from the Urban Heat Island effect—Phoenix and Sydney. The mean surface temperature reduction achieved was 5.30 ◦C in Phoenix and 4.21 ◦C in Sydney. The results presented suggest that the type of application (active or passive) is a determinant factor in the design of radiative cooling materials. Modifying the spectra of the materials led to a substantial change in the cooling potential. A material that performs well in a dry climate as a passive solution could perform poorly as an active solution. | en |
| dc.description.sponsorship | Laura Carlosena would like to acknowledge the funding of the Government of Navarre for an industrial Ph.D. research grant "Doctorados industriales 2018–2020" file number 0011-1408-2017-000028 at the University of the Basque Country that takes place in the R + D department of Alonso Hernández & asociados arquitectura S.L. | en |
| dc.format.mimetype | application/pdf | en |
| dc.format.mimetype | application/msword | en |
| dc.identifier.citation | Carlosena, L., Ruiz-Pardo, Á., Feng, J., Irulegi, O., Hernández-Minguillón, R. J., Santamouris, M. (2020) On the energy potential of daytime radiative cooling for urban heat island mitigation. Solar Energy, 208, 430-444. https://doi.org/10.1016/j.solener.2020.08.015. | en |
| dc.identifier.doi | 10.1016/j.solener.2020.08.015 | |
| dc.identifier.issn | 0038-092X | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/46754 | |
| dc.language.iso | eng | en |
| dc.publisher | Elsevier | en |
| dc.relation.ispartof | Solar Energy 208 (2020) 430-444 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/Gobierno de Navarra//0011-1408-2017-000028/ | |
| dc.relation.publisherversion | https://doi.org/10.1016/j.solener.2020.08.015 | |
| dc.rights | © 2020 International Solar Energy Society. Published by Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Daytime radiative cooling | en |
| dc.subject | Sensitivity analysis | en |
| dc.subject | Spectrally selective materials | en |
| dc.subject | Cooling potential | en |
| dc.subject | Urban Heat Island | en |
| dc.title | On the energy potential of daytime radiative cooling for urban heat island mitigation | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 687a0a58-08fb-4317-b3df-a35394add526 | |
| relation.isAuthorOfPublication.latestForDiscovery | 687a0a58-08fb-4317-b3df-a35394add526 |
Files
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.78 KB
- Format:
- Item-specific license agreed to upon submission
- Description: