RT journal article
T1 Performance of a Simplified Computational Fluid Dynamics Model for a Phase Change Material-Water Finned Heat Exchanger Under Different Orientations
A1 González Gallero, Francisco Javier
A1 González Siles, Gabriel
A1 Rodríguez Maestre, Ismael
A1 Foncubierta Blázquez, Juan Luis
A1 Pérez-Lombard, Luis
A2 Física Aplicada
A2 Máquinas y Motores Térmicos
K1 computational fluid dynamics model
K1 experimental validation
K1 longitudinally finned heat exchangers
K1 phase change materia
AB The prevalent numerical models for simulating axially finned heat exchangers with phase change materials (PCMs) and water asthe heat transfer fluid rely on computational fluid dynamics (CFD) techniques, with a primary focus on phase change modeling.However, the computational demands of these models, incorporating phase change effects and resolving PCM movement in theliquid state, are substantial. From experiments suggesting that conduction in the solidified PCM around the finned tube domi-nates heat transfer during the heat discharge process, this article introduces a simplified CFD-based model in which convectiveflow of the PCM is neglected. The model is experimentally validated using a 1-m-long axially finned heat exchanger prototypewith four fins, recording temperatures under different water flow rates and orientations (horizontal and vertical). Results showthat the proposed model predicts outlet water temperature satisfactorily, with absolute errors below 1.0°C and 2.2°C for the hori-zontal and vertical orientations, respectively. Additionally, the model can capture the temperature trend inside the PCM for thehorizontal orientation.
PB Wiley
SN 2578-4862
YR 2024
FD 2024-08
LK http://hdl.handle.net/10498/35641
UL http://hdl.handle.net/10498/35641
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-nov-2026