Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function

Adsorption chillers with desalination functionality, being devices characterised by very low electricity consumption, provide an alternative to conventional sources of cooling and water. The option of desalinating water means that the use of a single device enables obtaining two useful products. Ads...

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Autores principales:	Karol Sztekler, Wojciech Kalawa, Łukasz Mika, Marcin Sowa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	adsorption adsorption chiller desalination coefficient of performance specific cooling power low-temperature heat Technology T
Acceso en línea:	https://doaj.org/article/0ecb591f2bf94c8a9dddb21568445825
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id	oai:doaj.org-article:0ecb591f2bf94c8a9dddb21568445825
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spelling	oai:doaj.org-article:0ecb591f2bf94c8a9dddb215684458252021-11-11T15:59:45ZEffect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function10.3390/en142172261996-1073https://doaj.org/article/0ecb591f2bf94c8a9dddb215684458252021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7226https://doaj.org/toc/1996-1073Adsorption chillers with desalination functionality, being devices characterised by very low electricity consumption, provide an alternative to conventional sources of cooling and water. The option of desalinating water means that the use of a single device enables obtaining two useful products. Adsorption chillers are not widely used at present. due to their low performance characteristics; these are, however, constantly being improved. This paper presents a verification of the possibility of increasing the cooling coefficient of performance (COP) and specific cooling power (SCP) of a laboratory adsorption chiller by optimising the length of cycle times and using a copper additive to silica gel with a mass fraction of 15% to increase heat transport in the bed. The choice of copper among other considered additives was determined by the conclusions from the research on the sorption kinetics of various mixtures, price and availability, and a high thermal conductivity. The device was operated in a two-bed mode aimed at producing cooling. The adsorbate was distilled water. The results were compared with those obtained under similar conditions when the beds were only filled with silica gel. As a result of the testing, it was found that the use of the copper additive with the sorbent increased both the COP and SCP. The tests were performed for different cycle times, of 100, 200, 300 and 600 s. With increasing cycle time COP also increased. In contrast, the specific cooling power increased only up to a certain point, whereafter its value decreased.Karol SzteklerWojciech KalawaŁukasz MikaMarcin SowaMDPI AGarticleadsorptionadsorption chillerdesalinationcoefficient of performancespecific cooling powerlow-temperature heatTechnologyTENEnergies, Vol 14, Iss 7226, p 7226 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption adsorption chiller desalination coefficient of performance specific cooling power low-temperature heat Technology T
spellingShingle	adsorption adsorption chiller desalination coefficient of performance specific cooling power low-temperature heat Technology T Karol Sztekler Wojciech Kalawa Łukasz Mika Marcin Sowa Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function
description	Adsorption chillers with desalination functionality, being devices characterised by very low electricity consumption, provide an alternative to conventional sources of cooling and water. The option of desalinating water means that the use of a single device enables obtaining two useful products. Adsorption chillers are not widely used at present. due to their low performance characteristics; these are, however, constantly being improved. This paper presents a verification of the possibility of increasing the cooling coefficient of performance (COP) and specific cooling power (SCP) of a laboratory adsorption chiller by optimising the length of cycle times and using a copper additive to silica gel with a mass fraction of 15% to increase heat transport in the bed. The choice of copper among other considered additives was determined by the conclusions from the research on the sorption kinetics of various mixtures, price and availability, and a high thermal conductivity. The device was operated in a two-bed mode aimed at producing cooling. The adsorbate was distilled water. The results were compared with those obtained under similar conditions when the beds were only filled with silica gel. As a result of the testing, it was found that the use of the copper additive with the sorbent increased both the COP and SCP. The tests were performed for different cycle times, of 100, 200, 300 and 600 s. With increasing cycle time COP also increased. In contrast, the specific cooling power increased only up to a certain point, whereafter its value decreased.
format	article
author	Karol Sztekler Wojciech Kalawa Łukasz Mika Marcin Sowa
author_facet	Karol Sztekler Wojciech Kalawa Łukasz Mika Marcin Sowa
author_sort	Karol Sztekler
title	Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function
title_short	Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function
title_full	Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function
title_fullStr	Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function
title_full_unstemmed	Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function
title_sort	effect of metal additives in the bed on the performance parameters of an adsorption chiller with desalination function
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0ecb591f2bf94c8a9dddb21568445825
work_keys_str_mv	AT karolsztekler effectofmetaladditivesinthebedontheperformanceparametersofanadsorptionchillerwithdesalinationfunction AT wojciechkalawa effectofmetaladditivesinthebedontheperformanceparametersofanadsorptionchillerwithdesalinationfunction AT łukaszmika effectofmetaladditivesinthebedontheperformanceparametersofanadsorptionchillerwithdesalinationfunction AT marcinsowa effectofmetaladditivesinthebedontheperformanceparametersofanadsorptionchillerwithdesalinationfunction
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Effect of Metal Additives in the Bed on the Performance Parameters of an Adsorption Chiller with Desalination Function

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