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Conference Papers Year : 2020

Prospects for the Improvement of Energy Performance in Agroindustry Using Phase Change Materials

Abstract

The use of Phase Change Materials (PCMs), able to store latent heat, represents an opportunity to improve energy efficiency in the agroindustry by means of thermal energy storage. PCMs provide higher energy density then sensible heat storage mediums, thus paving the way to multiple applications, like supporting the integration of renewables or allowing for new storage architectures, decentralized and directly installed in the chain production equipment, creating e.g. the opportunity to recover and value low-grade operational heat sub-products. Such new and decentralized architecture, not currently applied in agroindustry, is proposed in this work. A chocolate tempering machine using an organic PCM is conceived and analyzed using ANSYS Fluent software for computational fluid dynamics simulations, comparing the main aspects in the storage capacity and discharging process with a conventional sensitive heat storage solution that uses water. PCMs allows improving the stored energy, keeping the chocolate in the working temperature after being tempered for more than four times longer than using only hot water. If the PCMs are charged by renewables, the self-consumption ratio can be improved while providing energy flexibility to the user.
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hal-03741530 , version 1 (01-08-2022)

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Carlos Simão, João Murta-Pina, Luís Coelho, João Pássaro, Rui Amaral Lopes, et al.. Prospects for the Improvement of Energy Performance in Agroindustry Using Phase Change Materials. 11th Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS), Jul 2020, Costa de Caparica, Portugal. pp.277-289, ⟨10.1007/978-3-030-45124-0_26⟩. ⟨hal-03741530⟩
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