Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal Pipe
The dynamics of water vapour adsorption on silica gel coated on the metal pipe surface is studied. Those systems in which silica grains were used to coat the heat-exchanger pipes were utilized for heat-transfer enhancement in adsorption chillers. A mathematical model of this process, which takes int...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
2015-05-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.33.5.499 |
| _version_ | 1797283279654617088 |
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| author | M. Gwadera K. Kupiec |
| author_facet | M. Gwadera K. Kupiec |
| author_sort | M. Gwadera |
| collection | DOAJ |
| description | The dynamics of water vapour adsorption on silica gel coated on the metal pipe surface is studied. Those systems in which silica grains were used to coat the heat-exchanger pipes were utilized for heat-transfer enhancement in adsorption chillers. A mathematical model of this process, which takes into account the adsorption kinetics, is proposed. Experimental results for different gas velocities are presented in the form of breakthrough curves. They are used to verify the model and to determine the values of parameters characterizing the adsorption kinetics. The model is applied to predict the spatial and temporal variations of water concentration in the adsorbent layer (grains) covering the pipe and to determine the contribution of the internal mass transfer resistance (in grains) to the total mass transfer resistance (in both phases). It is revealed that the external resistance (in gas) is dominant over the internal resistance and that the contribution of the internal resistance increases with both time and gas velocity. |
| first_indexed | 2024-03-07T17:28:50Z |
| format | Article |
| id | doaj.art-154747f503e848668f1279d67a43ed6f |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:28:50Z |
| publishDate | 2015-05-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-154747f503e848668f1279d67a43ed6f2024-03-02T18:29:30ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382015-05-013310.1260/0263-6174.33.5.499Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal PipeM. GwaderaK. KupiecThe dynamics of water vapour adsorption on silica gel coated on the metal pipe surface is studied. Those systems in which silica grains were used to coat the heat-exchanger pipes were utilized for heat-transfer enhancement in adsorption chillers. A mathematical model of this process, which takes into account the adsorption kinetics, is proposed. Experimental results for different gas velocities are presented in the form of breakthrough curves. They are used to verify the model and to determine the values of parameters characterizing the adsorption kinetics. The model is applied to predict the spatial and temporal variations of water concentration in the adsorbent layer (grains) covering the pipe and to determine the contribution of the internal mass transfer resistance (in grains) to the total mass transfer resistance (in both phases). It is revealed that the external resistance (in gas) is dominant over the internal resistance and that the contribution of the internal resistance increases with both time and gas velocity.https://doi.org/10.1260/0263-6174.33.5.499 |
| spellingShingle | M. Gwadera K. Kupiec Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal Pipe Adsorption Science & Technology |
| title | Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal Pipe |
| title_full | Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal Pipe |
| title_fullStr | Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal Pipe |
| title_full_unstemmed | Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal Pipe |
| title_short | Investigation of Water Vapour Adsorption on Silica Gel Grains Coated on a Metal Pipe |
| title_sort | investigation of water vapour adsorption on silica gel grains coated on a metal pipe |
| url | https://doi.org/10.1260/0263-6174.33.5.499 |
| work_keys_str_mv | AT mgwadera investigationofwatervapouradsorptiononsilicagelgrainscoatedonametalpipe AT kkupiec investigationofwatervapouradsorptiononsilicagelgrainscoatedonametalpipe |