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Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption

This paper introduces a new type of gypsum-based humidity-control material. The material combines gypsum–silica gel humidity-control material with 20% sepiolite powder activated by calcium chloride. Both experimental and simulation studies were conducted to assess its humidity-control performance. T...

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Detalles Bibliográficos
Autores principales: Li, Xi, Ran, Maoyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419816/
https://www.ncbi.nlm.nih.gov/pubmed/37569915
http://dx.doi.org/10.3390/ma16155211
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author Li, Xi
Ran, Maoyu
author_facet Li, Xi
Ran, Maoyu
author_sort Li, Xi
collection PubMed
description This paper introduces a new type of gypsum-based humidity-control material. The material combines gypsum–silica gel humidity-control material with 20% sepiolite powder activated by calcium chloride. Both experimental and simulation studies were conducted to assess its humidity-control performance. The experimental results indicate that gypsum-based humidity-control material has the property of absorbing moisture in high-humidity environments and releasing moisture in low-humidity environments. Moreover, both environmental temperature and relative humidity (RH) have an impact on the material’s humidity-control performance. At a relative humidity of 97.4%, the maximum equilibrium moisture content of the material is 0.225 g/g, which is 1.4 times that of the gypsum–silica gel humidity-control material and 4.5 times that of pure gypsum material. The simulation results indicate that gypsum-based humidity-control material effectively mitigates indoor relative humidity fluctuations and maintains indoor air relative humidity within a narrow range. Furthermore, the material has the potential to reduce building energy consumption. This is especially evident under climate conditions with large temperature and relative humidity differences between day and night, such as in Beijing, Paris, and Atlanta. The maximum potential energy-saving rate in Beijing can reach up to 19.31%.
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spelling pubmed-104198162023-08-12 Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption Li, Xi Ran, Maoyu Materials (Basel) Article This paper introduces a new type of gypsum-based humidity-control material. The material combines gypsum–silica gel humidity-control material with 20% sepiolite powder activated by calcium chloride. Both experimental and simulation studies were conducted to assess its humidity-control performance. The experimental results indicate that gypsum-based humidity-control material has the property of absorbing moisture in high-humidity environments and releasing moisture in low-humidity environments. Moreover, both environmental temperature and relative humidity (RH) have an impact on the material’s humidity-control performance. At a relative humidity of 97.4%, the maximum equilibrium moisture content of the material is 0.225 g/g, which is 1.4 times that of the gypsum–silica gel humidity-control material and 4.5 times that of pure gypsum material. The simulation results indicate that gypsum-based humidity-control material effectively mitigates indoor relative humidity fluctuations and maintains indoor air relative humidity within a narrow range. Furthermore, the material has the potential to reduce building energy consumption. This is especially evident under climate conditions with large temperature and relative humidity differences between day and night, such as in Beijing, Paris, and Atlanta. The maximum potential energy-saving rate in Beijing can reach up to 19.31%. MDPI 2023-07-25 /pmc/articles/PMC10419816/ /pubmed/37569915 http://dx.doi.org/10.3390/ma16155211 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Xi
Ran, Maoyu
Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption
title Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption
title_full Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption
title_fullStr Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption
title_full_unstemmed Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption
title_short Gypsum-Based Humidity-Control Material: Preparation, Performance and Its Impact on Building Energy Consumption
title_sort gypsum-based humidity-control material: preparation, performance and its impact on building energy consumption
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419816/
https://www.ncbi.nlm.nih.gov/pubmed/37569915
http://dx.doi.org/10.3390/ma16155211
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