Thermal Performance Enhancement of Triplex Tube Latent Thermal Storage Using Fins-Nano-Phase Change Material Technique

Ammar M. Abdulateef, Sohif Mat, Jasim Abdulateef, Kamaruzzaman Sopian, Abduljalil A. Al-Abidi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Latent heat thermal energy storage (LHTES) systems using a phase change material (PCM) can reduce the heat-transfer rates during charging/discharging processes because of their inherently low thermal conductivity. In this study, heat-transfer enhancement using various configurations of longitudinal fins employing both a PCM and a nano-PCM in a large triplex-tube heat exchanger (TTHX) was numerically investigated via the Fluent 15 software. The results showed that the thermal conductivity of the pure PCM (0.2 W/m K) can be observably enhanced by dispersing 10% alumina (Al2O3) to 25%. Therefore, the melting time is reduced to 12%, 11%, and 17% for the internal, internal-external, and external fins, respectively, compared with the case of the PCM without nanoparticle. It is concluded that the model of external fins-nano-PCM embedded in a large TTHX is the most efficient model for achieving complete PCM melting in a short time (188 min), where improving the thermal performance to 14% and 11% compared with the TTHX with internal and internal-external fins-nano-PCM, respectively. The simulation results are validated and agree well with experimental results for the PCM and nano-PCM.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalHeat Transfer Engineering
DOIs
Publication statusAccepted/In press - 12 Sep 2017

Fingerprint

phase change materials
Phase change materials
fins
tubes
augmentation
tube heat exchangers
Tubes (components)
Thermal conductivity
Melting
thermal conductivity
heat transfer
melting
Hot Temperature
Heat transfer
heat storage
Fins (heat exchange)
Aluminum Oxide
Latent heat
dispersing
latent heat

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Thermal Performance Enhancement of Triplex Tube Latent Thermal Storage Using Fins-Nano-Phase Change Material Technique. / Abdulateef, Ammar M.; Mat, Sohif; Abdulateef, Jasim; Sopian, Kamaruzzaman; Al-Abidi, Abduljalil A.

In: Heat Transfer Engineering, 12.09.2017, p. 1-14.

Research output: Contribution to journalArticle

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