Mathematical modeling and research of heat and moisture transfer processes in porous media
A mathematical model, numerical algorithm, solution, and results of the computational experiment on a computer are developed to predict the process of heat and moisture transfer in porous media, taking into account such factors as the internal heat and moisture release of a porous natural product on...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2021-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/40/e3sconf_conmechydro2021_01038.pdf |
| _version_ | 1819105397877768192 |
|---|---|
| author | Ravshanov Normakhmad Shadmanov Istam Kubyashev Kurash Khikmatullaev Sanjar |
| author_facet | Ravshanov Normakhmad Shadmanov Istam Kubyashev Kurash Khikmatullaev Sanjar |
| author_sort | Ravshanov Normakhmad |
| collection | DOAJ |
| description | A mathematical model, numerical algorithm, solution, and results of the computational experiment on a computer are developed to predict the process of heat and moisture transfer in porous media, taking into account such factors as the internal heat and moisture release of a porous natural product on the example of raw cotton and its products of hulling, seeds of various crops. It also considers the effect of temperature and moisture content changes in the environment on the storage and drying of porous materials.
In this study, the developed mathematical support of the object under research makes it possible to predict the change in temperature and moisture content at arbitrary points of the porous body and serves to prevent the loss of quality and spontaneous combustion of materials under solar radiation and to analyze and make managerial decisions.
Based on the method of coordinate-wise splitting, a numerical algorithm for calculating three-dimensional heat and moisture transfer problems in areas of the parallelepiped type is presented. An implicit second-order difference scheme for calculating the required functions is presented.
Based on the numerical calculations performed, it was established that moisture and heat transfer and their exchange with the environment occurs in the upper layers of the cotton pile; in the inner layers, there is an increase in temperature and moisture due to the respiration of raw cotton and its seeds, which depends on the degree of moisture of the raw cotton and their products of hulling. |
| first_indexed | 2024-12-22T02:21:36Z |
| format | Article |
| id | doaj.art-08ca0827b66546d0be28fd61ec3d8267 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-22T02:21:36Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-08ca0827b66546d0be28fd61ec3d82672022-12-21T18:42:07ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012640103810.1051/e3sconf/202126401038e3sconf_conmechydro2021_01038Mathematical modeling and research of heat and moisture transfer processes in porous mediaRavshanov Normakhmad0Shadmanov Istam1Kubyashev Kurash2Khikmatullaev Sanjar3Research Institute for the Development of Digital Technologies and Artificial IntelligenceBukhara Branch of the V.I.Romanovsky Institute of Mathematics of the Academy of Sciences of the Republic of UzbekistanTashkent Institute of Irrigation and Agricultural Mechanization EngineersTashkent Institute of Irrigation and Agricultural Mechanization EngineersA mathematical model, numerical algorithm, solution, and results of the computational experiment on a computer are developed to predict the process of heat and moisture transfer in porous media, taking into account such factors as the internal heat and moisture release of a porous natural product on the example of raw cotton and its products of hulling, seeds of various crops. It also considers the effect of temperature and moisture content changes in the environment on the storage and drying of porous materials. In this study, the developed mathematical support of the object under research makes it possible to predict the change in temperature and moisture content at arbitrary points of the porous body and serves to prevent the loss of quality and spontaneous combustion of materials under solar radiation and to analyze and make managerial decisions. Based on the method of coordinate-wise splitting, a numerical algorithm for calculating three-dimensional heat and moisture transfer problems in areas of the parallelepiped type is presented. An implicit second-order difference scheme for calculating the required functions is presented. Based on the numerical calculations performed, it was established that moisture and heat transfer and their exchange with the environment occurs in the upper layers of the cotton pile; in the inner layers, there is an increase in temperature and moisture due to the respiration of raw cotton and its seeds, which depends on the degree of moisture of the raw cotton and their products of hulling.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/40/e3sconf_conmechydro2021_01038.pdf |
| spellingShingle | Ravshanov Normakhmad Shadmanov Istam Kubyashev Kurash Khikmatullaev Sanjar Mathematical modeling and research of heat and moisture transfer processes in porous media E3S Web of Conferences |
| title | Mathematical modeling and research of heat and moisture transfer processes in porous media |
| title_full | Mathematical modeling and research of heat and moisture transfer processes in porous media |
| title_fullStr | Mathematical modeling and research of heat and moisture transfer processes in porous media |
| title_full_unstemmed | Mathematical modeling and research of heat and moisture transfer processes in porous media |
| title_short | Mathematical modeling and research of heat and moisture transfer processes in porous media |
| title_sort | mathematical modeling and research of heat and moisture transfer processes in porous media |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/40/e3sconf_conmechydro2021_01038.pdf |
| work_keys_str_mv | AT ravshanovnormakhmad mathematicalmodelingandresearchofheatandmoisturetransferprocessesinporousmedia AT shadmanovistam mathematicalmodelingandresearchofheatandmoisturetransferprocessesinporousmedia AT kubyashevkurash mathematicalmodelingandresearchofheatandmoisturetransferprocessesinporousmedia AT khikmatullaevsanjar mathematicalmodelingandresearchofheatandmoisturetransferprocessesinporousmedia |