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Article

Basic Analysis of Uncertainty Sources in the CFD Simulation of a Shell-and-Tube Latent Thermal Energy Storage Unit

1
Chair of Engineering Thermodynamics and Transport Processes (LTTT), Center of Energy Technology (ZET), University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
2
Université Grenoble Alpes (UGA), CEA-LITEN-DTBH, 17 rue des Martyrs, 38000 Grenoble, France
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(19), 6723; https://doi.org/10.3390/app10196723
Received: 5 August 2020 / Revised: 10 September 2020 / Accepted: 16 September 2020 / Published: 25 September 2020
(This article belongs to the Special Issue Advancement in Phase Change Material Technologies)
Computational Fluid Dynamics (CFD) simulations are increasingly employed in the development of latent thermal energy storage units. Yet there are often strong deviations between the experiments and numerical results. To unveil the sources of the deviations for the CFD simulation of a vertical shell-and-tube latent thermal energy storage unit, a basic analysis of different uncertainties is undertaken in this paper. Consequently, the effect of a variation of 10 material properties, six initial and boundary conditions, as well as a displacement of the temperature measuring points in the simulation, are examined. The results depict that the influence of the substance data depend on the output variable under consideration. Beside material properties, which have almost no influence, there are some properties that influence the power and the global liquid phase fraction over time, and a third group, which also has an influence on the mean power. Partly in contrast to results found in literature, the highest influence on the mean power occurs for the heat losses (which are varied in an on/off manner), the density, and the melting enthalpy (both varied by ±10%). View Full-Text
Keywords: latent thermal energy storage; uncertainty analysis; phase change material; CFD; shell-and-tube latent thermal energy storage; uncertainty analysis; phase change material; CFD; shell-and-tube
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MDPI and ACS Style

König-Haagen, A.; Mühlbauer, A.; Marquardt, T.; Caron-Soupart, A.; Fourmigué, J.-F.; Brüggemann, D. Basic Analysis of Uncertainty Sources in the CFD Simulation of a Shell-and-Tube Latent Thermal Energy Storage Unit. Appl. Sci. 2020, 10, 6723. https://doi.org/10.3390/app10196723

AMA Style

König-Haagen A, Mühlbauer A, Marquardt T, Caron-Soupart A, Fourmigué J-F, Brüggemann D. Basic Analysis of Uncertainty Sources in the CFD Simulation of a Shell-and-Tube Latent Thermal Energy Storage Unit. Applied Sciences. 2020; 10(19):6723. https://doi.org/10.3390/app10196723

Chicago/Turabian Style

König-Haagen, Andreas, Adam Mühlbauer, Tom Marquardt, Adèle Caron-Soupart, Jean-François Fourmigué, and Dieter Brüggemann. 2020. "Basic Analysis of Uncertainty Sources in the CFD Simulation of a Shell-and-Tube Latent Thermal Energy Storage Unit" Applied Sciences 10, no. 19: 6723. https://doi.org/10.3390/app10196723

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