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Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules

Heat storage efficiency is required to maximize the potential of combined heat and power generation or renewable energy sources for heating. Using a phase change material (PCM) could be an attractive choice in several instances. Commercially available paraffin-based PCM was investigated using T-hist...

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Autores principales: Jančík, Petr, Schmirler, Michal, Hyhlík, Tomáš, Bláha, Adam, Sláma, Pavel, Devera, Jakub, Kouba, Jan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8636507/
https://www.ncbi.nlm.nih.gov/pubmed/34853405
http://dx.doi.org/10.1038/s41598-021-02705-1
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author Jančík, Petr
Schmirler, Michal
Hyhlík, Tomáš
Bláha, Adam
Sláma, Pavel
Devera, Jakub
Kouba, Jan
author_facet Jančík, Petr
Schmirler, Michal
Hyhlík, Tomáš
Bláha, Adam
Sláma, Pavel
Devera, Jakub
Kouba, Jan
author_sort Jančík, Petr
collection PubMed
description Heat storage efficiency is required to maximize the potential of combined heat and power generation or renewable energy sources for heating. Using a phase change material (PCM) could be an attractive choice in several instances. Commercially available paraffin-based PCM was investigated using T-history method with sufficient agreement with the data from the manufacturer. The introduced LHTES with cylindrical capsules is simple and scalable in capacity, charging/discharging time, and temperature level. The overall stored energy density is 9% higher than the previously proposed design of similar design complexity. The discharging process of the designed latent heat thermal energy storage (LHTES) was evaluated for two different flow rates. The PCM inside the capsules and heat transfer fluid (HTF) temperature, as well as the HTF flow rate, were measured. The lumped parameter numerical model was developed and validated successfully. The advantage of the proposed model is its computational simplicity, and thus the possibility to use it in simulations of a whole heat distribution network. The so-called state of charge (SoC), which plays a crucial role in successful heat storage management, is a part of the evaluation of both experimental and computational data.
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spelling pubmed-86365072021-12-03 Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules Jančík, Petr Schmirler, Michal Hyhlík, Tomáš Bláha, Adam Sláma, Pavel Devera, Jakub Kouba, Jan Sci Rep Article Heat storage efficiency is required to maximize the potential of combined heat and power generation or renewable energy sources for heating. Using a phase change material (PCM) could be an attractive choice in several instances. Commercially available paraffin-based PCM was investigated using T-history method with sufficient agreement with the data from the manufacturer. The introduced LHTES with cylindrical capsules is simple and scalable in capacity, charging/discharging time, and temperature level. The overall stored energy density is 9% higher than the previously proposed design of similar design complexity. The discharging process of the designed latent heat thermal energy storage (LHTES) was evaluated for two different flow rates. The PCM inside the capsules and heat transfer fluid (HTF) temperature, as well as the HTF flow rate, were measured. The lumped parameter numerical model was developed and validated successfully. The advantage of the proposed model is its computational simplicity, and thus the possibility to use it in simulations of a whole heat distribution network. The so-called state of charge (SoC), which plays a crucial role in successful heat storage management, is a part of the evaluation of both experimental and computational data. Nature Publishing Group UK 2021-12-01 /pmc/articles/PMC8636507/ /pubmed/34853405 http://dx.doi.org/10.1038/s41598-021-02705-1 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Jančík, Petr
Schmirler, Michal
Hyhlík, Tomáš
Bláha, Adam
Sláma, Pavel
Devera, Jakub
Kouba, Jan
Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules
title Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules
title_full Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules
title_fullStr Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules
title_full_unstemmed Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules
title_short Experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical PCM capsules
title_sort experimental investigation and modelling of a laboratory-scale latent heat storage with cylindrical pcm capsules
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8636507/
https://www.ncbi.nlm.nih.gov/pubmed/34853405
http://dx.doi.org/10.1038/s41598-021-02705-1
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