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Thermal performance evaluation of a passive building wall with CO2-filled transparent thermal insulation and paraffin-based PCM

Thermal performance evaluation of a passive building wall with CO2-filled transparent thermal insulation and paraffin-based PCM

Torres-Rodríguez, Agustín, Morillón-Gálvez, David, Aldama-Ávalos, Daniel, Hernández-Gómez, Víctor Hugo and García Kerdan, Ivan ORCID: 0000-0002-0566-555X (2020) Thermal performance evaluation of a passive building wall with CO2-filled transparent thermal insulation and paraffin-based PCM. Solar Energy, 205. pp. 1-11. ISSN 0038-092X (Print), 1471-1257 (Online) (doi:https://doi.org/10.1016/j.solener.2020.04.090)

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Abstract

Novel thermal insulation materials and wall configurations have the potential to play a major role in reducing energy demand and carbon emissions from the building sector. In this study, a passive heating wall system composed by a CO2-filled transparent thermal insulation (TTI) and an organic phase change material (PCM), and a passive cooling system composed by a Tromble Wall with nano-film and a CO2-filled TTI are proposed and evaluated. The aim is to present a detailed analytical model for rapidly calculating thermal performance of the proposed wall configurations. As case study, a 108 m2 south façade of a building located in Mexico has been used. Outputs suggest that as a passive heating measure, the system has the potential to supply heat in the order of 118 W, 126 W, 134 W, and 157 W, during the months of December, January, February, and March respectively. Additionally, thermal performance and air velocity simulations suggest that for the heating case, considering an outdoor and indoor temperature conditions of 0 °C and 21 °C respectively, the internal layer surface reaches a temperature of 9.2 °C; while for the cooling case, considering outdoor and indoor temperature conditions of 25 °C and 21 °C respectively, it reaches 22.5 °C with a maximum indoor air velocity of 0.5 m/s. Compared to other gases, CO2 could hold a greater potential due to its low thermal conductivity and capital costs. Large-scale implementation of such systems could make the building sector an interesting option as an artificial sink for carbon storage.

Item Type: Article
Uncontrolled Keywords: building envelope, mathematical model, organic phase change material, passive system, transparent thermal insulation
Subjects: T Technology > TH Building construction
Faculty / Department / Research Group: Faculty of Liberal Arts & Sciences
Faculty of Liberal Arts & Sciences > Department of Built Environment
Faculty of Liberal Arts & Sciences > School of Design
Last Modified: 30 May 2020 23:07
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: None
URI: http://gala.gre.ac.uk/id/eprint/28309

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