Experimental Study on Two PCM Macro-Encapsulation Designs in a Thermal Energy Storage Tank
| Autor: | Boniface Dominick Mselle, David Vérez, Alicia Crespo, Emiliano Borri, Gabriel Zsembinszki, Alvaro de Gracia, Luisa F. Cabeza |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
rectangular slab Materials science QH301-705.5 QC1-999 020209 energy Latent heat thermal energy storage 02 engineering and technology Macro-encapsulation Sensible heat Thermal energy storage 7. Clean energy experimental study Latent heat 0202 electrical engineering electronic engineering information engineering General Materials Science Biology (General) Composite material QD1-999 Instrumentation Fluid Flow and Transfer Processes latent heat thermal energy storage Experimental study business.industry Physics Process Chemistry and Technology macro-encapsulation General Engineering thermal energy storage Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology Phase-change material Rectangular slab Computer Science Applications Volumetric flow rate phase change materials (PCM) Chemistry Phase change materials (PCM) Heat transfer Computer data storage TA1-2040 0210 nano-technology business Energy (signal processing) |
| Zdroj: | Applied Sciences Volume 11 Issue 13 Repositorio Abierto de la UdL Universitad de Lleida Applied Sciences, Vol 11, Iss 6171, p 6171 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11136171 |
| Popis: | The use of latent heat thermal energy storage is an effective way to increase the efficiency of energy systems due to its high energy density compared with sensible heat storage systems. The design of the storage material encapsulation is one of the key parameters that critically affect the heat transfer in charging/discharging of the storage system. To fill the gap found in the literature, this paper experimentally investigates the effect of the macro-encapsulation design on the performance of a lab-scale thermal energy storage tank. Two rectangular slabs with the same length and width but different thickness (35 mm and 17 mm) filled with commercial phase change material were used. The results show that using thinner slabs achieved a higher power, leading to a reduction in the charging and discharging time of 14% and 30%, respectively, compared with the thicker slabs. Moreover, the variation of the heat transfer fluid flow rate has a deeper impact on the temperature distribution and the energy charged/released when thicker slabs were used. The macro-encapsulation design did not have a significant impact on the discharging efficiency of the tank, which was around 85% for the operating thresholds considered in this study. This project has received funding from the European Union’s Horizon 2020 research and innovation program 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 program. |
| Databáze: | OpenAIRE |
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