Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia
The main goal of this work is to assess the influence of moisture transfer processes on the operational properties of complex structures with wooden elements. A physical-mathematical model of the combined heat and moisture transfer in the walls of insulated timber with connectors has been presented...
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Online Access: | https://doi.org/10.1016/j.envc.2021.100101 https://doaj.org/article/deab7f71d2274e7eb1c736eecd30e491 |
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ftdoajarticles:oai:doaj.org/article:deab7f71d2274e7eb1c736eecd30e491 2023-05-15T17:57:31+02:00 Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia Nikolay Aleksandrovich Tsvetkov Aleksandr Vital'yevich Tolstykh Andrey Nikolaevich Khutornoi Stanislav Boldyryev Anna Vladimirovna Kolesnikova Dmitrii Nikolaevich Tsvetkov 2021-08-01T00:00:00Z https://doi.org/10.1016/j.envc.2021.100101 https://doaj.org/article/deab7f71d2274e7eb1c736eecd30e491 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2667010021000809 https://doaj.org/toc/2667-0100 2667-0100 doi:10.1016/j.envc.2021.100101 https://doaj.org/article/deab7f71d2274e7eb1c736eecd30e491 Environmental Challenges, Vol 4, Iss , Pp 100101- (2021) Thermal insulating profiled timber Physical-mathematical modelling Heat and moisture transfer Moisture conductivity Moisture sorption Environmental sciences GE1-350 article 2021 ftdoajarticles https://doi.org/10.1016/j.envc.2021.100101 2022-12-31T06:49:00Z The main goal of this work is to assess the influence of moisture transfer processes on the operational properties of complex structures with wooden elements. A physical-mathematical model of the combined heat and moisture transfer in the walls of insulated timber with connectors has been presented in the paper. The model is intended for use in the climatic conditions of the northern territories. The model has been confirmed by experimental data on moisture sorption isotherms in wood, as well as the dependence of moisture conductivity and thermal conductivity coefficients on the temperature and humidity. Based on numerical simulation of nonstationary heat and moisture transfer in external building envelopes made of thermal insulating profiled timber with connectors, heat and mass fluxes in the selected inhomogeneous fragments have been calculated, and their thermal properties have been evaluated. It is shown that moisture transfer processes result in a decrease in thermal properties of walls made of insulated timber with connectors by 6-8%. The presence of connectors does not lead to the formation of any local zones with a significant accumulation of moisture. The studied properties and characteristics of green building materials enabled to development of the methodology of energy-efficient buildings and provide the background for the calculation of energy systems. The results of this work may be combined with other research on renewable or low-carbon energy technology to create a new strategy of sustainable construction in Russian permafrost regions. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Environmental Challenges 4 100101 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Thermal insulating profiled timber Physical-mathematical modelling Heat and moisture transfer Moisture conductivity Moisture sorption Environmental sciences GE1-350 |
spellingShingle |
Thermal insulating profiled timber Physical-mathematical modelling Heat and moisture transfer Moisture conductivity Moisture sorption Environmental sciences GE1-350 Nikolay Aleksandrovich Tsvetkov Aleksandr Vital'yevich Tolstykh Andrey Nikolaevich Khutornoi Stanislav Boldyryev Anna Vladimirovna Kolesnikova Dmitrii Nikolaevich Tsvetkov Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia |
topic_facet |
Thermal insulating profiled timber Physical-mathematical modelling Heat and moisture transfer Moisture conductivity Moisture sorption Environmental sciences GE1-350 |
description |
The main goal of this work is to assess the influence of moisture transfer processes on the operational properties of complex structures with wooden elements. A physical-mathematical model of the combined heat and moisture transfer in the walls of insulated timber with connectors has been presented in the paper. The model is intended for use in the climatic conditions of the northern territories. The model has been confirmed by experimental data on moisture sorption isotherms in wood, as well as the dependence of moisture conductivity and thermal conductivity coefficients on the temperature and humidity. Based on numerical simulation of nonstationary heat and moisture transfer in external building envelopes made of thermal insulating profiled timber with connectors, heat and mass fluxes in the selected inhomogeneous fragments have been calculated, and their thermal properties have been evaluated. It is shown that moisture transfer processes result in a decrease in thermal properties of walls made of insulated timber with connectors by 6-8%. The presence of connectors does not lead to the formation of any local zones with a significant accumulation of moisture. The studied properties and characteristics of green building materials enabled to development of the methodology of energy-efficient buildings and provide the background for the calculation of energy systems. The results of this work may be combined with other research on renewable or low-carbon energy technology to create a new strategy of sustainable construction in Russian permafrost regions. |
format |
Article in Journal/Newspaper |
author |
Nikolay Aleksandrovich Tsvetkov Aleksandr Vital'yevich Tolstykh Andrey Nikolaevich Khutornoi Stanislav Boldyryev Anna Vladimirovna Kolesnikova Dmitrii Nikolaevich Tsvetkov |
author_facet |
Nikolay Aleksandrovich Tsvetkov Aleksandr Vital'yevich Tolstykh Andrey Nikolaevich Khutornoi Stanislav Boldyryev Anna Vladimirovna Kolesnikova Dmitrii Nikolaevich Tsvetkov |
author_sort |
Nikolay Aleksandrovich Tsvetkov |
title |
Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia |
title_short |
Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia |
title_full |
Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia |
title_fullStr |
Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia |
title_full_unstemmed |
Mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of Russia |
title_sort |
mathematical modelling of renewable construction materials for green energy-efficient buildings at permafrost regions of russia |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.envc.2021.100101 https://doaj.org/article/deab7f71d2274e7eb1c736eecd30e491 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Environmental Challenges, Vol 4, Iss , Pp 100101- (2021) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2667010021000809 https://doaj.org/toc/2667-0100 2667-0100 doi:10.1016/j.envc.2021.100101 https://doaj.org/article/deab7f71d2274e7eb1c736eecd30e491 |
op_doi |
https://doi.org/10.1016/j.envc.2021.100101 |
container_title |
Environmental Challenges |
container_volume |
4 |
container_start_page |
100101 |
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1766165975642669056 |