@article{10902/38473,
year = {2021},
month = {10},
url = {https://hdl.handle.net/10902/38473},
abstract = {In this study, a thermal energy storage tank filled with commercial phase change material flat slabs is investigated. The tank provides heat at around 15 °C to the evaporator of a seasonal thermal energy storage system developed under the EU-funded project SWS-Heating. A 2D numerical model of the phase changed material storage tank based on the finite control volume approach was developed and validated with experimental data. Based on the validated model, an optimization was performed to identify the number, type and configuration of slabs. The final goal of the phase change material tank model is to be implemented into the whole generic heating system model. A trade-off between results accuracy and computational time of the phase change material model is needed. Therefore, a comparison between a 2D implicit and 2D explicit scheme of the model was performed. The results showed that using an explicit scheme instead of an implicit scheme with a reasonable number of nodes (15 to 25) in the heat transfer fluid direction allowed a considerable decrease in the computational time (7 times for the best case) with only a slight reduction in the accuracy in terms on mean average percentage error (0.44%).},
organization = {This project was funded by the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No. 764025 (SWS-HEATING). This work was partially funded by the Ministerio de Ciencia, Innovación y Universidades de España (RTI2018-093849-B-C31—MCIU/AEI/FEDER, UE) and by the Ministerio de Ciencia, Innovación y Universidades—Agencia Estatal de Investigación (AEI) (RED2018-102431-T). This work is partially supported by ICREA under the ICREA Academia programme. Alicia Crespo would also like to acknowledge the financial support of the FI-SDUR grant from the AGAUR of the Generalitat de Catalunya and Secretaria d’Universitats i Recerca del Departament d’Empresa i Coneixement de la Generalitat de Catalunya},
publisher = {MDPI},
publisher = {Energies, 2021, 14(9), 2605},
title = {Optimization of design variables of a phase change material storage tank and comparison of a 2D implicit vs. 2D explicit model},
author = {Crespo Gutiérrez, Alicia and Zsembinszki, Gabriel and Vérez Fernández, David and Borri, Emiliano and Fernández Camón, César and Cabeza Fabra, Luisa F. and Gracia Cuesta, Álvaro de},
}