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The Effect of Adhesive Additives on Silica Gel Water Sorption Properties
Adsorption chillers are characterized by low electricity consumption, lack of moving parts, and high reliability. The disadvantage of these chillers is their large weight due to low adsorbent sorption capacity. Therefore, the attention is turned to finding a sorbent with a high water sorption capaci...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7516784/ https://www.ncbi.nlm.nih.gov/pubmed/33286102 http://dx.doi.org/10.3390/e22030327 |
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author | Sztekler, Karol Kalawa, Wojciech Mlonka-Medrala, Agata Nowak, Wojciech Mika, Łukasz Krzywanski, Jaroslaw Grabowska, Karolina Sosnowski, Marcin Debniak, Marcin |
author_facet | Sztekler, Karol Kalawa, Wojciech Mlonka-Medrala, Agata Nowak, Wojciech Mika, Łukasz Krzywanski, Jaroslaw Grabowska, Karolina Sosnowski, Marcin Debniak, Marcin |
author_sort | Sztekler, Karol |
collection | PubMed |
description | Adsorption chillers are characterized by low electricity consumption, lack of moving parts, and high reliability. The disadvantage of these chillers is their large weight due to low adsorbent sorption capacity. Therefore, the attention is turned to finding a sorbent with a high water sorption capacity and enhanced thermal conductivity to increase chiller efficiency. The article discusses the impact of selected adhesives used for the production of an adsorption bed in order to improve heat exchange on its surface. Experiments with silica gel with three commercial types of glue on metal plates representing heat exchanger were performed. The structure of samples was observed under a microscope to determine the coverage of adsorbent by glue. To determine the kinetics of the free adsorption, the amounts of moisture adsorbed and the desorption dynamics the prepared samples of coated bed on metal plates were moisturized and dried in a moisture analyzer. Samples made of silica gel mixed with the adhesive 2-hydroxyethyl cellulose, show high adsorption capacity, low dynamic adsorption, and medium dynamic desorption. Samples containing adhesive poly(vinyl alcohol) adsorb less moisture, but free adsorption and desorption were more dynamic. Samples containing the adhesive hydroxyethyl cellulose show lower moisture capacity, relatively dynamic adsorption, and lower dynamic desorption. |
format | Online Article Text |
id | pubmed-7516784 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75167842020-11-09 The Effect of Adhesive Additives on Silica Gel Water Sorption Properties Sztekler, Karol Kalawa, Wojciech Mlonka-Medrala, Agata Nowak, Wojciech Mika, Łukasz Krzywanski, Jaroslaw Grabowska, Karolina Sosnowski, Marcin Debniak, Marcin Entropy (Basel) Article Adsorption chillers are characterized by low electricity consumption, lack of moving parts, and high reliability. The disadvantage of these chillers is their large weight due to low adsorbent sorption capacity. Therefore, the attention is turned to finding a sorbent with a high water sorption capacity and enhanced thermal conductivity to increase chiller efficiency. The article discusses the impact of selected adhesives used for the production of an adsorption bed in order to improve heat exchange on its surface. Experiments with silica gel with three commercial types of glue on metal plates representing heat exchanger were performed. The structure of samples was observed under a microscope to determine the coverage of adsorbent by glue. To determine the kinetics of the free adsorption, the amounts of moisture adsorbed and the desorption dynamics the prepared samples of coated bed on metal plates were moisturized and dried in a moisture analyzer. Samples made of silica gel mixed with the adhesive 2-hydroxyethyl cellulose, show high adsorption capacity, low dynamic adsorption, and medium dynamic desorption. Samples containing adhesive poly(vinyl alcohol) adsorb less moisture, but free adsorption and desorption were more dynamic. Samples containing the adhesive hydroxyethyl cellulose show lower moisture capacity, relatively dynamic adsorption, and lower dynamic desorption. MDPI 2020-03-12 /pmc/articles/PMC7516784/ /pubmed/33286102 http://dx.doi.org/10.3390/e22030327 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sztekler, Karol Kalawa, Wojciech Mlonka-Medrala, Agata Nowak, Wojciech Mika, Łukasz Krzywanski, Jaroslaw Grabowska, Karolina Sosnowski, Marcin Debniak, Marcin The Effect of Adhesive Additives on Silica Gel Water Sorption Properties |
title | The Effect of Adhesive Additives on Silica Gel Water Sorption Properties |
title_full | The Effect of Adhesive Additives on Silica Gel Water Sorption Properties |
title_fullStr | The Effect of Adhesive Additives on Silica Gel Water Sorption Properties |
title_full_unstemmed | The Effect of Adhesive Additives on Silica Gel Water Sorption Properties |
title_short | The Effect of Adhesive Additives on Silica Gel Water Sorption Properties |
title_sort | effect of adhesive additives on silica gel water sorption properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7516784/ https://www.ncbi.nlm.nih.gov/pubmed/33286102 http://dx.doi.org/10.3390/e22030327 |
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