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Published August 31, 2021 | Version v1
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The effect of metal wool on the charging and discharging rate of the phase transition thermal storage material

Creators

  • 1. Odessa National Academy of Food Technologies

Description

Thermal energy storage (TES) plays an important role in solar heat power systems. The use of phase change materials (PCM) and selecting additives to increase the rate of heat accumulation is a promising way to increase the efficiency and reliability of such systems.

The objects of the study were pure paraffin wax (PW) and composite PCMs based on it (containing aluminum and copper wool of 30 and 45 μm in diameter, respectively).

An experimental setup with a cylindrical measuring cell was created, which was also considered as a model of a capsule with a thermal storage material. The rate of temperature change in the pure PW sample and samples of composite PCMs was experimentally measured. Two modes of heating and cooling were investigated: from 48 to 59 °C (mode with a phase change) and from 30 to 40 °C (mode without phase changes).

Heating time from 48 to 59 °C for the PW sample was 13 min., for the PW samples with the content of aluminum wool of 0.00588 and 0.01780 m3·m-3 − 11 and 10.5 min., for the PW samples with the content of copper wool of 0.00524 and 0.01380 m3·m-3 − 11 and 8 min., correspondingly. The minimum heating time from 30 to 40 °C was 6 min. for the sample of PW with 0.01380 m3·m-3 of copper wool in comparison with 9 min. for the sample of pure PW.

The expediency of using copper wool as an additive to thermal storage materials of PW to increase the charging and discharging rate of TES devices without significantly raising their price was confirmed. The presence of metal wool in molten PW suppresses bottom-up convective currents, so the main mechanism of heat transfer is thermal conductivity. This fact will contribute to a faster equalization of the temperature field by the height of heat storage capsules

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References

  • Javadi, F. S., Metselaar, H. S. C., Ganesan, P. (2020). Performance improvement of solar thermal systems integrated with phase change materials (PCM), a review. Solar Energy, 206, 330–352. doi: https://doi.org/10.1016/j.solener.2020.05.106
  • Kahwaji, S., Johnson, M. B., Kheirabadi, A. C., Groulx, D., White, M. A. (2018). A comprehensive study of properties of paraffin phase change materials for solar thermal energy storage and thermal management applications. Energy, 162, 1169–1182. doi: https://doi.org/10.1016/j.energy.2018.08.068
  • Gasia, J., Maldonado, J. M., Galati, F., De Simone, M., Cabeza, L. F. (2019). Experimental evaluation of the use of fins and metal wool as heat transfer enhancement techniques in a latent heat thermal energy storage system. Energy Conversion and Management, 184, 530–538. doi: https://doi.org/10.1016/j.enconman.2019.01.085
  • Nie, C., Deng, S., Liu, J. (2020). Effects of fins arrangement and parameters on the consecutive melting and solidification of PCM in a latent heat storage unit. Journal of Energy Storage, 29, 101319. doi: https://doi.org/10.1016/j.est.2020.101319
  • Rostami, S., Afrand, M., Shahsavar, A., Sheikholeslami, M., Kalbasi, R., Aghakhani, S. et. al. (2020). A review of melting and freezing processes of PCM/nano-PCM and their application in energy storage. Energy, 211, 118698. doi: https://doi.org/10.1016/j.energy.2020.118698
  • Manoj Kumar, P., Sudarvizhi, D., Stalin, P. M. J., Aarif, A., Abhinandhana, R., Renuprasanth, A. et. al. (2021). Thermal characteristics analysis of a phase change material under the influence of nanoparticles. Materials Today: Proceedings, 45, 7876–7880. doi: https://doi.org/10.1016/j.matpr.2020.12.505
  • Karaipekli, A., Biçer, A., Sarı, A., Tyagi, V. V. (2017). Thermal characteristics of expanded perlite/paraffin composite phase change material with enhanced thermal conductivity using carbon nanotubes. Energy Conversion and Management, 134, 373–381. doi: https://doi.org/10.1016/j.enconman.2016.12.053
  • Li, M., Mu, B. (2019). Effect of different dimensional carbon materials on the properties and application of phase change materials: A review. Applied Energy, 242, 695–715. doi: https://doi.org/10.1016/j.apenergy.2019.03.085
  • Atinafu, D. G., Yun, B. Y., Wi, S., Kang, Y., Kim, S. (2021). A comparative analysis of biochar, activated carbon, expanded graphite, and multi-walled carbon nanotubes with respect to PCM loading and energy-storage capacities. Environmental Research, 195, 110853. doi: https://doi.org/10.1016/j.envres.2021.110853
  • Grosu, Y., Zhao, Y., Giacomello, A., Meloni, S., Dauvergne, J.-L., Nikulin, A. et. al. (2020). Hierarchical macro-nanoporous metals for leakage-free high-thermal conductivity shape-stabilized phase change materials. Applied Energy, 269, 115088. doi: https://doi.org/10.1016/j.apenergy.2020.115088
  • Prieto, C., Lopez-Roman, A., Martínez, N., Morera, J. M., Cabeza, L. F. (2021). Improvement of Phase Change Materials (PCM) Used for Solar Process Heat Applications. Molecules, 26 (5), 1260. doi: https://doi.org/10.3390/molecules26051260
  • Pan, M., Lai, W. (2017). Cutting copper fiber/paraffin composite phase change material discharging experimental study based on heat dissipation capability of Li-ion battery. Renewable Energy, 114, 408–422. doi: https://doi.org/10.1016/j.renene.2017.07.004
  • Zhelezny, V., Motovoy, I., Khliyeva, O., Lukianov, N. (2019). An influence of Al2O3 nanoparticles on the caloric properties and parameters of the phase transition of isopropyl alcohol in solid phase. Thermochimica Acta, 671, 170–180. doi: https://doi.org/10.1016/j.tca.2018.11.020
  • Zhelezny, V., Khliyeva, O., Motovoy, I., Lukianov, N. (2019). An experimental investigation and modelling of the thermal and caloric properties of nanofluids isopropyl alcohol - Al2O3 nanoparticles. Thermochimica Acta, 678, 178296. doi: https://doi.org/10.1016/j.tca.2019.05.011
  • Khliyeva, O. Ya., Nikulin, A. G., Zhelezny, V. P., Paskal, A. A., Semenyuk, Yu. V. (2021). Thermal conductivity of metal wool armored phase change materials for thermal energy storage. Int. conf.: Functional materials for innovative energy. Kyiv, 8.
  • Punniakodi, B. M. S., Senthil, R. (2021). A review on container geometry and orientations of phase change materials for solar thermal systems. Journal of Energy Storage, 36, 102452. doi: https://doi.org/10.1016/j.est.2021.102452