Experimental and computational study of melting phase-change material in a triplex tube heat exchanger with longitudinal/triangular fins

Abdulateef, Ammar M.; Mat, Sohif; Sopian, Kamaruzzaman; Abdulateef, Jasim; Gitan, Ali Ahmed

doi:10.1016/j.solener.2017.06.024

Cited by 145 publications

(23 citation statements)

References 15 publications

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“…Rathod and Banerjee [13] reported a reduction in process time, 24% for melting and 44% for solidification by the addition of only three longitudinal fins on a tube. Abdulateef et al [14] also reported a decrease in melting duration when several types of longitudinal fins were used on concentric tubes. Zhang and Faghri [15] conducted a numerical study on an internally longitudinal finned tube that resulted in a decrease in the melting time when the thickness, height, and number of fins were increased.…”

Section: Introductionmentioning

confidence: 94%

Performance Evaluation of a Small-Scale Latent Heat Thermal Energy Storage Unit for Heating Applications Based on a Nanocomposite Organic PCM

et al. 2019

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A small-scale latent heat thermal energy storage (LHTES) unit for heating applications was studied experimentally using an organic phase change material (PCM). The unit comprised of a tank filled with the PCM, a staggered heat exchanger (HE) for transferring heat from and to the PCM, and a water pump to circulate water as a heat transfer fluid (HTF). The performance of the unit using the commercial organic paraffin A44 was studied in order to understand the thermal behavior of the system and the main parameters that influence heat transfer during the PCM melting and solidification processes. The latter will assist the design of a large-scale unit. The effect of flow rate was studied given that it significantly affects charging (melting) and discharging (solidification) processes. In addition, as organic PCMs have low thermal conductivity, the possible improvement of the PCM’s thermal behavior by means of nanoparticle addition was investigated. The obtained results were promising and showed that the use of graphite-based nanoplatelets improves the PCM thermal behavior. Charging was clearly faster and more efficient, while with the appropriate tuning of the HTF flow rate, an efficient discharging was accomplished.

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Section: Introductionmentioning

confidence: 94%

Performance Evaluation of a Small-Scale Latent Heat Thermal Energy Storage Unit for Heating Applications Based on a Nanocomposite Organic PCM

et al. 2019

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“…The highest temperature that can be reached at both ends of the fin is equal to the temperature of the separator. As the convective heat dissipation process of the fin and the medium continues, its temperature will continue to decrease until it reaches a relative thermal equilibrium with the medium [11].…”

Section: The Fhementioning

confidence: 99%

Analysis and optimization control of finned heat dissipation performance for automobile power lithium battery pack

Feng

2020

THERM SCI

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To cope with the problem of global warming and improve the performance of electric vehicles, the power source of electric vehicles is researched. First, the CFD simulation analysis method is utilized to analyze the heat dissipation effect under the changes of the air intake speed, the number of fins, and the thickness of the fins between lithium batteries. Then, the orthogonal experiment is utilized to select the optimal solution between the lithium batteries. The simulation results show that the heat dissipation effect is optimal under the conditions that the inlet air speed is 8 m/s, the number of fins is seven, and the thickness of fins is 2.5 mm. Then, the orthogonal experiment determines the optimal heat dissipation scheme of the lithium battery pack the air inlet speed is 8 m/s, the number of fins is six, and the thickness of the fins is 2 mm. This optimal scheme can effectively improve the heat dissipation performance of lithium batteries, enhance the performance of electric vehicles, and reduce CO 2 emissions.

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“…A major improvement was attained applying internal, internal with external, and external triangle fins at 11%, 12%, and 15%, respectively, compared with the cases using longitudinal fins. Abdulateef et al [19] compared the melting enhancement achieved by triangular fins with longitudinal fins under the same thermal conditions. They concluded that rectangular could provide a faster enhancement rate by up to 15%.…”

Section: Introductionmentioning

confidence: 99%

Intensifying the Charging Response of a Phase-Change Material with Twisted Fin Arrays in a Shell-And-Tube Storage System

et al. 2021

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A twisted-fin array as an innovative structure for intensifying the charging response of a phase-change material (PCM) within a shell-and-tube storage system is introduced in this work. A three-dimensional model describing the thermal management with charging phase change process in PCM was developed and numerically analyzed by the enthalpy-porosity method using commercial CFD software. Efficacy of the proposed structure of fins for performing better heat communication between the active heating surface and the adjacent layers of PCM was verified via comparing with conventional longitudinal fins within the same design limitations of fin material and volume usage. Optimization of the fin geometric parameters including the pitch, number, thickness, and the height of the twisted fins for superior performance of the proposed fin structure, was also introduced via the Taguchi method. The results show that a faster charging rate, higher storage rate, and better uniformity in temperature distribution could be achieved in the PCMs with Twisted fins. Based on the design of twisted fins, it was found that the energy charging time could be reduced by up to 42%, and the energy storage rate could be enhanced up to 63% compared to the reference case of straight longitudinal fins within the same PCM mass limitations.

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Experimental and computational study of melting phase-change material in a triplex tube heat exchanger with longitudinal/triangular fins

Cited by 145 publications

References 15 publications

Performance Evaluation of a Small-Scale Latent Heat Thermal Energy Storage Unit for Heating Applications Based on a Nanocomposite Organic PCM

Performance Evaluation of a Small-Scale Latent Heat Thermal Energy Storage Unit for Heating Applications Based on a Nanocomposite Organic PCM

Analysis and optimization control of finned heat dissipation performance for automobile power lithium battery pack

Intensifying the Charging Response of a Phase-Change Material with Twisted Fin Arrays in a Shell-And-Tube Storage System

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