Internal and external fin heat transfer enhancement technique for latent heat thermal energy storage in triplex tube heat exchangers

Abduljalil A. Al-Abidi, Sohif Mat, Kamaruzzaman Sopian, M. Y. Sulaiman, Abdulrahman Th Mohammad

Research output: Contribution to journalArticle

114 Citations (Scopus)

Abstract

The importance of latent heat thermal energy storage is significant in contrast to sensible energy storage because of the large storage energy densities per unit mass/volume at nearly constant thermal energy. In this paper, heat transfer enhancement technique by using internal and external fins for PCM melting in a triplex tube heat exchanger (TTHX) was investigated numerically. A two-dimensional numerical model is developed using the Fluent 6.3.26 software program, and pure conduction and natural convection are considered in the simulation. The number of fins, fin length, fin thickness, Stefan number, TTHX material, and the phase change material (PCM) unit geometry in the TTHX are found to influence the time for complete melting of the PCM. Experiments were conducted to validate the proposed model. Simulated results agree with the experimental results. The computational results show that case G (8-cell PCM unit geometry) achieved a shorter time in completing the melting of the PCM, the total melting time is decreased to 34.7%.

Original languageEnglish
Pages (from-to)147-156
Number of pages10
JournalApplied Thermal Engineering
Volume53
Issue number1
DOIs
Publication statusPublished - 2013

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Fins (heat exchange)
Phase change materials
Tubes (components)
Latent heat
Thermal energy
Energy storage
Melting
Geometry
Natural convection
Numerical models
Heat transfer
Experiments

Keywords

  • Heat transfer enhancement
  • Melting
  • Phase change material
  • Triplex tube heat exchanger

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Cite this

Internal and external fin heat transfer enhancement technique for latent heat thermal energy storage in triplex tube heat exchangers. / Al-Abidi, Abduljalil A.; Mat, Sohif; Sopian, Kamaruzzaman; Sulaiman, M. Y.; Mohammad, Abdulrahman Th.

In: Applied Thermal Engineering, Vol. 53, No. 1, 2013, p. 147-156.

Research output: Contribution to journalArticle

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AU - Mohammad, Abdulrahman Th

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AB - The importance of latent heat thermal energy storage is significant in contrast to sensible energy storage because of the large storage energy densities per unit mass/volume at nearly constant thermal energy. In this paper, heat transfer enhancement technique by using internal and external fins for PCM melting in a triplex tube heat exchanger (TTHX) was investigated numerically. A two-dimensional numerical model is developed using the Fluent 6.3.26 software program, and pure conduction and natural convection are considered in the simulation. The number of fins, fin length, fin thickness, Stefan number, TTHX material, and the phase change material (PCM) unit geometry in the TTHX are found to influence the time for complete melting of the PCM. Experiments were conducted to validate the proposed model. Simulated results agree with the experimental results. The computational results show that case G (8-cell PCM unit geometry) achieved a shorter time in completing the melting of the PCM, the total melting time is decreased to 34.7%.

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