2026-07-18T15:35:07Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/72722024-05-14T10:59:02Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394
A Numerical Simulation of an Experimental Melting Process of a Phase-Change Material without Convective Flows
García Fuente, Manuel
González Peña, David
Alonso Tristán, Cristina
PCM
Convective flows
CFD
Numerical simulation
Experimental
The melting process of lauric acid in a square container heated from the top surface was
numerically studied from an experimental case. Knowledge of this process is of special interest
for computationally efficient modeling systems, such as PCM-enhanced photovoltaic panels in
horizontal positions or energy storage using PCM embedded on flat surfaces. In these systems, the
geometric arrangement of the PCM hinders the fluid-phase movements through natural convection,
which slows the melting process and can cause overheating in the fluid phase. Using Ansys Fluent
Software, three different approaches and two simulation methods, enthalpy-porosity and effective
heat capacity, were developed for the numerical study. The results were compared with experimental
measurements in a successful evaluation of the accuracy of computational fluid dynamics simulations.
It could be observed that the effective heat capacity method presented significant advantages over the
enthalpy-porosity method, since similar accuracy results were obtained, and a lower computational
cost was required.
2023-01-19
2023-01-19
2022-04
info:eu-repo/semantics/article
http://hdl.handle.net/10259/7272
10.3390/app12073640
2076-3417
eng
Applied sciences. 2022, V. 12, n. 7, 3640
https://doi.org/10.3390/app12073640
info:eu-repo/grantAgreement/Junta de Castilla y León//BU021G19//Metodología para la rehabilitación energética de edificios de uso público en castilla y león mediante integración fotovoltaica/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-098900-B-I00/ES/ANALISIS ESPECTRAL DE LA RADIACION SOLAR: APLICACIONES CLIMATICAS, ENERGETICAS Y BIOLOGICAS/
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
Atribución 4.0 Internacional
MDPI