THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Mustafa B. Al-Hadithi

,

Saad M. Jalil

NUMERICAL AND EXPERIMENTAL INVESTIGATION FOR MELTING BEHAVIOR OF PHASE CHANGE MATERIAL IN THE ANNULUS OF TWO CONCENTRIC PIPES

ABSTRACT
The study analyzed numerically and experimentally the thermal performance and temperature evolution during the period of melting case of a PCM inside an annular space of concentric pipes. The inlet temperature of the working fluid, water, that flows to the inner pipe of the annulus was maintained at almost a constant temperature of 333 K higher than the melting point of the PCM. The mathematical model for the current 3-D coupled system was solved numerically by ANSYS FLUENT 2021 R1. The temperature at different positions in the system was measured under different mass-flow rates. The preliminary results indicated that there is a very good matching and agreement between the computational and the experimental findings relating to the temperature measurements. Different mass-flow rate cases are considered in the experiments ranging from 0.0952-0.0134 kg/s. This range of flow rates was utilized in running the experiments to obtain the required data. The results showed that there is a maximum variation, ranging from 3.4%-4.8%, between the numerical and experimental findings at the maximum mass-flow rate. This error is an acceptable limit for comparing the computational and experimental results in the present investigation.
KEYWORDS
PCM, melting process, heat transfer fluid, finite volume method, paraffin wax
PAPER SUBMITTED: 2024-01-23
PAPER REVISED: 2024-03-24
PAPER ACCEPTED: 2024-04-08
PUBLISHED ONLINE: 2024-06-22
DOI REFERENCE: https://doi.org/10.2298/TSCI240123134A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 6, PAGES [4605 - 4616]
REFERENCES
  1. Long, J-Y., Numerical and Experimental Investigation for Heat Transfer in Triplex Concentric Tube with Phase Change Material for Thermal Energy Storage, Solar Energy, 82 (2008), 11, pp. 977-985
  2. Al-Abidi, A. A., et al., Numerical Study of PCM Solidification in a Triplex Tube Heat Exchanger with Internal and External Fin, International Journal of Heat and Mass Transfer, 61 (2013), June, pp. 684-695
  3. Wang, W. W., et al., Numerical Study of the Heat Charging and Discharging Characteristics of a Shell-and-Tube Phase Change Heat Storage Unit, Applied Thermal Engineering, 58 (2013), 1-2, pp. 542-553
  4. Kibria, M. A., et al., Numerical and Experimental Investigation of Heat Transfer in a Shell and Tube Thermal Energy Storage System, International Communications in Heat and Mass Transfer, 53 (2014), Apr., pp. 71-78
  5. Rathod, M. K., Banerjee, J., Experimental Investigations on Latent Heat Storage Unit Using Paraffin Wax as Phase Change Material, Experimental Heat Transfer, 27 (2014), 1, pp. 40-55
  6. Gasia, J., et al., Experimental Evaluation of a Paraffin as Phase Change Material for Thermal Energy Storage in Laboratory Equipment and in a Shell-and-Tube Heat Exchanger, Applied Sciences, 6 (2016), 112
  7. Seddegh, S., et al., Investigation of the Effect of Geometric and Operating Parameters on Thermal Behavior of Vertical Shell-and-Tube Latent Heat Energy Storage Systems, Energy, 137 (2017), Oct., pp. 69-82
  8. Han, G.-S., et al., A Comparative Study on the Performances of Different Shell-and-Tube Type Latent Heat Thermal Energy Storage Units Including the Effects of Natural-Convection, International Communications in Heat and Mass Transfer, 88 (2017), Nov., pp. 228-235
  9. Shen, G., et al., Investigation on Optimal Shell-to-Tube Radius Ratio of a Vertical Shell-and-Tube Latent Heat Energy Storage System, Solar Energy, 211 (2020), Nov., pp. 732-743
  10. Abbas, B. A., Al-Hadithi, M. B., Numerical Prediction of Melting Phenomena of Phase Change Material in the Annulus of Two Concentric Pipes: Performance and Behavior, AIP Conference Proceedings, 2806 (2023), 1, pp. 080001-1-080001-15
  11. Jalil, S. M., Mathematical and Numerical Predictions for Optimum Perfect Mixing by Bulk Convective Oscillatory Exchange, International Journal of Heat and Mass Transfer, 167 (2021), Mar., 120792
  12. Jalil, S. M., Phase-Lags' Radial Variations Between Velocity, Shear Stress, and Pressure Gradient in Ultrahigh Frequency Pulsating Turbulent Flows, Journal of Fluids Engineering, Transactions of the ASME, 142 (2020), 5, 051201-1
  13. ***, ANSYS, ANSYS Fluent Theory Guide, Release 17.1, ANSYS, www.ansys.com/products/fluids/ansys-fluent., 2016
  14. Al-Hadithi, M. B., Alazawi, A. M. J., The Effect of Phase Change Material on Thermal Energy Storage in Cement Layers, Int. J. Nanoelectronics and Materials, 9 (2016), 2, pp. 133-142
  15. Holman, J. P., Heat Transfer, 10th ed., McGraw-Hill Company, New York, USA, 2010
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Numerical and experimental investigation for melting behavior of phase change material in the annulus of two concentric pipes

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence