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Título:
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Comparative study of the thermal performance of four different shell-and-tube heat exchangers used as latent heat thermal energy storage systems
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Autor/a:
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Gasia, Jaume; Diriken, Jan; Bourke, Malcolm; Van Bael, Johan; Cabeza, Luisa F.
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Notas:
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In this paper, the influence of the addition of fins and the use of two different heat transfer fluids (water and a commercial silicone) have been experimentally tested and compared in four latent heat thermal energy storage systems, based on the shell-and-tube heat exchanger concept, using paraffin RT58 as phase change material. Three European institutions were involved under the framework of the MERITS project. A common approach (temperature and power profiles), and five different key performance indicators have been defined and used for the comparison: energy charged, average power, 5-min peak power, peak power to energy ratio, and time. For the same heat transfer fluid, results showed that finned designs (4.7-9.4 times more heat transfer surface) showed an improvement of up to 40%. On the contrary, for the same design, water (which has a specific heat 3 times higher and a thermal conductivity 4.9 times higher than silicone Syltherm 800), yielded results up to 44% higher.
The research leading to these results has received funding from the European Commission Seventh Framework Programme (FP/2007–2013) under grant agreement No ENER/FP7/295983 (MERITS) and under Grant agreement N°PIRSES-GA-2013-610692 (INNOSTORAGE), and from the European Union's Horizon 2020 research and innovation programme under grant agreement No 657466 (INPATH-TES). The work is partially funded by the Spanish government (ENE2015-64117-C5-1-R (MINECO/FEDER) and ULLE10-4E-1305). The authors would like to thank the Catalan Government for the quality accreditation given to the research group GREA (2014 SGR 123). Jaume Gasia would like to thank the Departament d’Universitats, Recerca i Societat de la Informació de la Generalitat de Catalunya for his research fellowship (2017FI_B 00092). |
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Materia(s):
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-Thermal energy storage
-Phase change material
-Shell-and-tube
-Heat exchanger
-Key performance indicators |
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Derechos:
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cc-by-nc-nd (c) Jaume Gasia et al., 2017
http://creativecommons.org/licenses/by-nc-nd/4.0/
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Tipo de documento:
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Artículo
Artículo - Versión publicada |
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Editor:
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Elsevier
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Compartir:
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