Thermal performance of a window shutter containing PCM: Numerical validation and experimental analysis
authors Silva, T; Vicente, R; Amaral, C; Figueiredo, A
nationality International
journal APPLIED ENERGY
author keywords Heat transfer; Phase change material (PCM); Simulation; Thermal energy storage (TES); Thermal performance; Validation
keywords PHASE-CHANGE MATERIALS; ENERGY STORAGE TECHNOLOGIES; BUILDING APPLICATIONS; SIMULATION-MODELS; GLAZING SYSTEMS; SOLAR; WALL; CALIBRATION; COMFORT; FACADES
abstract The present paper describes a numerical and experimental testing of a thermal energy storage system (TES) that contains phase change material (PCM). The definitions and assumptions of the developed numerical models to assess the performance and to simulate the thermal energy behavior are presented. The numerical calculation was performed using a computational fluid dynamics (CFD) analysis, and a real scale test cell with two window shutters, one with and the other without phase change materials, was used to validate the numerical model. The windows shutters were applied into two similar compartments that were tested and the thermal behavior was analyzed. The numerical models are based on 2D analysis and the indoor temperature comparison between the experimental and the simulated model are evaluated for both compartment models. To validate and evaluate the data agreement of the numerical results were used the most common statistical indexes (based on ASHRAE, IPMVP) and FEMP). According to the used criteria acceptance, the results of the numerical model presented good agreement and reliability, and the numerical model was considered as calibrated with well prediction data. Comparing the temperature improvement and the time delay between both compartments, the compartment with the PCM window shutter (i) decreased the maximum indoor temperature up to 8.7% for the warming period, (ii) increased 16.7% the minimum indoor temperature for the night period and (iii) increased the time delay 1 h for the maximum temperature peak and 30 min for the minimum temperature peak, compared with the reference compartment. (C) 2016 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0306-2619
year published 2016
volume 179
beginning page 64
ending page 84
digital object identifier (doi) 10.1016/j.apenergy.2016.06.126
web of science category Energy & Fuels; Engineering, Chemical
subject category Energy & Fuels; Engineering
unique article identifier WOS:000383291800007
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journal analysis (jcr 2019):
journal impact factor 8.848
5 year journal impact factor 9.086
category normalized journal impact factor percentile 94.282
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