Análise da incerteza das propriedades higrotérmicas da taipa de pilão para uso na simulação termoenergética

Mayara Tartarotti Cardozo da Silva; Ana Paula da Silva Milani

doi:10.18830/1679-09442026v19e59563

Authors

Mayara Tartarotti Cardozo da Silva Universidade Federal de Mato Grosso do Sul; Faculdade de Engenharias, Arquitetura e Urbanismo, e Geografia; Programa de Pós-graduação em Eficiência Energética e Sustentabilidade https://orcid.org/0000-0001-9729-4065
Ana Paula da Silva Milani Universidade Federal de Mato Grosso do Sul; Faculdade de Engenharias, Arquitetura e Urbanismo, e Geografia; Programa de Pós-graduação em Eficiência Energética e Sustentabilidade https://orcid.org/0000-0003-2291-4172

DOI:

https://doi.org/10.18830/1679-09442026v19e59563

Keywords:

Earth construction, density, thermal conductivity, specific heat, water vapor diffusion resistance factor

Abstract

This study explores the use of rammed earth as a sustainable solution to promote thermal comfort. By parameterizing its hygrothermal properties established the significance of different computer simulations methods and the confidence intervals to assess its thermal energy performance. Simulations in the rammed earth building were conducted using the EnergyPlus and JePlus, applying the conduction transfer function (CTF) and effective moisture penetration depth (EMPD) models. ANOVA was used to analyze the sensitivity and uncertainty of the following variables: wall thickness, empirical hygrothermal properties, and building occupancy patterns. Results show that the CTF model maintains accuracy for simulations of rammed earth, particularly in tropical climates with wet summers and dry winters. Also, wall thickness and rammed earth conductivity, as well as the occupancy patterns significantly influence energy consumption. Confidence intervals for the rammed earth hygrothermal properties were: density (1780–2025 kg/m³), thermal conductivity (0.85– 0.93 W/m·K), specific heat (750–800 J/kg·K), and water vapor diffusion resistance factor (13–14).

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Author Biographies

Mayara Tartarotti Cardozo da Silva, Universidade Federal de Mato Grosso do Sul; Faculdade de Engenharias, Arquitetura e Urbanismo, e Geografia; Programa de Pós-graduação em Eficiência Energética e Sustentabilidade

Master's student in the Stricto Sensu Graduate Program in Energy Efficiency and Sustainability at UFMS. Graduated in Civil Engineering from the Federal University of Mato Grosso do Sul (2021). Completed an internship in a geotechnical laboratory, assisting in the execution of the building's As-Built project and test planning (2021). Was a research fellow in a scientific and technological initiation project (PIBITI) in the area of energy efficiency in buildings, with a presentation at a regional event (2020-2021). Participated as a volunteer in the human resources sector of the academic center of civil engineering at UFMS (CAENG) for two years (2018-2019). Has knowledge of programming languages in R, MS Excel, MS Project, Power BI, AutoCAD, and Revit. Interested in the areas of energy efficiency and sustainability in the context of civil engineering.

Ana Paula da Silva Milani, Universidade Federal de Mato Grosso do Sul; Faculdade de Engenharias, Arquitetura e Urbanismo, e Geografia; Programa de Pós-graduação em Eficiência Energética e Sustentabilidade

She holds a degree in Civil Engineering from the São Paulo State University "Júlio de Mesquita Filho" - UNESP (2001), and a master's and doctorate in Agricultural Engineering from the University of Campinas - UNICAMP (2005 and 2008). Currently, she is a full professor at the Federal University of Mato Grosso do Sul - UFMS, working in the Postgraduate Program in Energy Efficiency and Sustainability. Her research focuses on eco-efficient construction systems, building physics, and life cycle assessment, with an emphasis on earth as a building material and on waste materials for the promotion of low-carbon materials. She is a member of the TerraBrasil and ProTerra Networks, contributing to the development and extension of earth architecture and construction in the Ibero-American context. She was the coordinator (2021-2023) and a member of the ABNT/CB-002/CE 002 123 009 Earth Construction Study Committee.

References

BECKETT, Christopher T. S. et al. Measured and simulated thermal behaviour in rammed earth houses in a hot-arid climate. Part B: Comfort. Journal of Building Engineering, v. 13, 2017. Available at: https://www.sciencedirect.com/science/article/abs/pii/S2352710217302073. Accessed 18 November 2025.

BEN-ALON, Lola. et al. Life cycle assessment (LCA) of natural vs conventional building assemblies. Renewable and Sustainable Energy Reviews, v. 144, 2021. Available at: https://www.sciencedirect.com/science/article/abs/pii/S1364032121002434. Accessed 18 November 2025.

EL-BICHRI, Fatima-Zahra. et al. Assessment of the impact of construction materials on the building’s thermal behaviour and indoor thermal comfort in a hot and semi-arid climate. Advances in Building Energy Research, v. 16, 2022. Available at: https://web.archive.org/web/20230613014326/https://www.tandfonline.com/doi/full/10.1080/17512549.2022.2096692. Accessed 18 April 2025.

FAR, Claire; AHMED, Iftekhar; MACKEE, Jamie. Significance of occupant behaviour on the energy performance gap in residential buildings. Architecture, v. 2, 2022. Available at: https://web.archive.org/web/20230313163711/https://www.mdpi.com/2673-8945/2/2/23 Accessed 13 March 2023.

FERNANDES, Jorge. et al. Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance. Renewable Energy, v. 142, 2019. Available at: https://doi.org/10.1016/j.renene.2019.04.098. Accessed 18 November 2025.

FRAUNHOFER. WUFI Passes Benchmark Test of EN 15026. 2018. Available at: https://wufi.de/download/EN15026_en.pdf. Accessed 18 November 2025.

GIUFFRIDA, Giada. et al. Design optimisation strategies for solid rammed earthwalls in mediterranean climates. Energies, v. 14, 2021. Available at: https://doi.org/10.3390/en14020325. Accessed 18 November 2025.

GIUFFRIDA, Giada; CAPONETTO, Rosa; NOCERA, Francesco. Hygrothermal properties of raw earth materials: A literature review. Sustainability (Switzerland), v. 11, 2019. Available at: https://doi.org/10.3390/su11195342. Accessed 18 November 2025.

HARRIES, Kent A.; SHARMA, Bhavna. Nonconventional and vernacular construction materials: characterisation, properties and applications. 2 ed. Duxford, England; Cambridge, Massachusetts; Oxford, England: Woodhead Publishing, 2020. Available at: https://www.sciencedirect.com/book/9780081027042/nonconventional-and-vernacular-construction-materials. Accessed 18 November 2025.

HUERTO-CARDENAS, Harold Enrique. et al. Impact of moisture buffering effect in the calibration of historical buildings energy models: A case study. Journal of Sustainable Development of Energy, Water and Environment Systems, v. 9, 2021. Available at: https://doi.org/10.13044/j.sdewes.d8.0370. Accessed 18 November 2025.

JIANG, Maqi. et al. Thermal and humidity performance test of rammed-earth dwellings in northwest Sichuan during summer and winter. Materials, v.16, 2023. Available at: https://doi.org/10.3390/ma16186283. Accessed 18 November 2025.

KAITOUNI, Samir Idrissi. et al. Energy and hygrothermal performance investigation and enhancement of rammed earth buildings in hot climates: From material to field measurements. Energy and Buildings, v. 315, 2024. Available at: https://doi.org/10.1016/j.enbuild.2024.114325. Accessed 18 November 2025.

KERESTECIOGLU, Alp; MUTHUSAMY, Swami; KAMEL, Adel. Theoretical and computational Investigation of Algorithms for Simultaneous Heat and Moisture Transport in Buildings, Task 2 Final Report. 1988. Available at: https://www.aivc.org/sites/default/files/airbase_3522.pdf. Accessed 18 November 2025.

LI, Xiaolong. et al. Experimental and numerical analysis of the hygric performance of earthen buildings after façade hydrophobization treatment. Case Studies in Construction Materials, v. 19, 2023. Available at: https://doi.org/10.1016/j.cscm.2023.e02217. Accessed 18 November 2025.

LIANG, Jiahua; TAN, Jiaye; JIANG, Bin. Thermal and humid environment of rammed-earth dwellings in Northwest Sichuan. Indoor and Built Environment, v. 31, 2022. Available at: https://doi.org/10.1177/1420326X211061113. Accessed 18 November 2025.

LOSINI, Alessia Emanuela. et al. Biopolymer impact on hygrothermal properties of rammed earth: from material to building scale. Building and Environment, v. 233, 2023a. Available at: https://doi.org/10.1016/j.buildenv.2023.110087. Accessed 18 November 2025.

LOSINI, Alessia Emanuela. et al. Hygrothermal characterization of rammed earth according to humidity variations. In: E3S Web of Conferences. EDP Sciences, 2023b. Available at: https://doi.org/10.1051/e3sconf/202338223004. Accessed 18 November 2025.

MAMANI, Tamara. et al. Variables that affect thermal comfort and its measuring instruments: A systematic review. Sustainability, v. 14, 2022. Available at: https://doi.org/10.3390/su14031773. Accessed 18 November 2025.

MARSH, Alastair T. M.; KULSHRESHTHA, Yask. The state of earthen housing worldwide: how development affects attitudes and adoption. Building Research & Information, v. 50, 2022. Available at: https://doi.org/10.1080/09613218.2021.1953369. Accessed 18 November 2025.

MILANI, Ana Paula S.; IUNES, Isabela M. C. Environmental aspects of rammed earth’s life cycle inventory. MIX Sustentável, v.9, 2023. Available at: https://doi.org/10.29183/2447-3073.MIX2023.v9.n3.117-130. Accessed 18 November 2025.

MILANI, Ana Paula S.; LABAKI, Lucila Chebel. Physical, mechanical, and performance of cement-stabilized rammed earth-rice husk ash walls. Journal of Materials in Civil Engineering, v. 24, n. 6, p. 775-83, 2012. Available at: https://doi.org/10.1061/(ASCE)MT.1943-5533.0000439. Accessed 18 November 2025.

MUJAN, Igor. et al. Influence of indoor environmental quality on human health and productivity-A review. Journal of cleaner production, v. 217, 2019. Available at: https://doi.org/10.1016/j.jclepro.2019.01.307. Accessed 18 November 2025.

PETCU, Cristian. et al. Thermophysical Characteristics of Clay for Efficient Rammed Earth Wall Construction. Materials, v. 16, 2023. Available at: https://doi.org/10.3390/ma16176015. Accessed 18 November 2025.

SAMADIANFARD, Sima; TOUFIGH, Vahab. Energy Use and Thermal Performance of Rammed-Earth Materials. Journal of Materials in Civil Engineering, v. 32, 2020. Available at: https://doi.org/10.1061/(ASCE)MT.1943-5533.0003364. Accessed 18 November 2025.

SCOCCIMARRO, Enrico. et al. Country-level energy demand for cooling has increased over the past two decades. Communications Earth & Environment, v. 4, 2023. Available at: https://doi.org/10.1038/s43247-023-00878-3. Accessed 18 November 2025.

SERRANO, Susana. et al. Rammed earth walls in Mediterranean climate: Material characterization and thermal behaviour. International Journal of Low-Carbon Technologies, v. 12, n. 3, p. 281–288, 1 set. 2017. Available at: https://doi.org/10.1093/ijlct/ctw022. Accessed 18 November 2025.

SILVA, Mayara Tartarotti C.; MILANI, Ana Paula S. Thermal conductivity of the soil-cement building material: a bibliometric study. In: Encontro Nacional de Tecnologia do Ambiente Construído, 19., 2022. Anais [...]. Porto Alegre: ANTAC, 2022. Available at: https://doi.org/10.46421/entac.v19i1.2069. Accessed 18 November 2025.

TAN, Jiaye. et al. Influence of Non-Constant Hygrothermal Parameters on Heat and Moisture Transfer in Rammed Earth Walls. Buildings, v. 12, 2022. Available at: https://doi.org/10.3390/buildings12081077. Accessed 18 November 2025.

YU, Shenwei. et al. Optimization of Wall Thickness Based on a Comprehensive Evaluation Index of Thermal Mass and Insulation. Sustainability, v. 14, 2022a. Available at: https://doi.org/10.3390/su14031143. Accessed 18 November 2025.

YU, Shenwei. et al. Research on optimization of the thermal performance of composite rammed earth construction. Energies, v. 15, 2022b. Available at: https://doi.org/10.3390/en15041519. Accessed 18 November 2025.

ZHANG, Lei. et al. Thermal conductivity of cement stabilized earth blocks. Construction and Building Materials, v. 151, p. 504–511, 2017. Available at: https://doi.org/10.1016/j.conbuildmat.2017.06.047. Accessed 18 November 2025.