Geometric and design parameters of fins employed for enhancing thermal energy storage systems: a review

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

doi:10.1016/j.rser.2017.07.009

Cited by 314 publications

(85 citation statements)

References 65 publications

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“…This work agrees with earlier work [17,32,[93][94][95][96][97][98][99][100][101] in concluding that fins are an effective strategy for the enhancement of heat transfer within LHTSDs. However, it qualifies that conclusion by noting that the flow and melt boundary develop in similar ways in both cases despite the significant differences in geometry.…”

Section: Analysis Of Melt and Flow Behavior During Dischargingsupporting

confidence: 92%

“…The latter approach includes the encapsulation of the PCM in a protective polymer coating [28,89,90] and the use of heat pipes to carry thermal energy between a heat transfer fluid and the PCM [91,92]. However, the most common (and cost-effective) strategy to enhance heat transfer into and out of a PCM thermal storage unit is the use of high conductivity fins [17,32,93]. Previous computational and experimental work on finned heat spreaders demonstrates that they consistently enhance heat transfer within a variety of types of LHTSDs [94], including containers with flat plate fins [95,96], axial fins [97,98], and circular fins [99][100][101].…”

Section: Introductionmentioning

confidence: 99%

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Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Augspurger¹

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Section: Analysis Of Melt and Flow Behavior During Dischargingsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Augspurger¹

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“…Common types of fins are longitudinal/rectangular, 186 circular/annular, 187 and plate fins. 192 In addition, fins should be made of highly conductive metals to ensure good heat transfer. Agyenim et al 189 compared the thermal performance of horizontal concentric tube storage devices with three different structures (finless, circular fins, and longitudinal fins).…”

Section: Adding Fins On the Container Sidementioning

confidence: 99%

“…191 Increasing fin thickness and width or decreasing fin spacing significantly shortens the phase transition time. 192 In addition, fins should be made of highly conductive metals to ensure good heat transfer.…”

Section: Adding Fins On the Container Sidementioning

confidence: 99%

Review of latent thermal energy storage systems for solar air‐conditioning systems

et al. 2019

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Solar air conditioning is an important approach to satisfy the high demand for cooling given the global energy situation. The application of phase-change materials (PCMs) in a thermal storage system is a way to address temporary power problems of solar air-conditioning systems. This paper reviews the selection, strengthening, and application of PCMs and containers in latent thermal storage system for solar air-conditioning systems. The optimization of PCM container geometry is summarized and analyzed. The hybrid enhancement methods for PCMs and containers and the cost assessment of latent thermal storage system are discussed. The more effective heat transfer enhancement using PCMs was found to mainly involve micro-nano additives. Combinations of fins and nanoadditives, nanoparticles, and metal foam are the main hybrid strengthening method. However, the thermal storage effect of hybrid strengthening is not necessarily better than single strengthening. At the same time, the latent thermal storage unit has less application in the field of solar airconditioning systems, especially regarding heat recovery, because of its cost and thermal storage time. The integration of latent thermal storage units and solar air-conditioning components, economic analysis of improvement technology, and quantitative studies on hybrid improvement are potential research directions in the future.

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“…With the characteristics of simple fabrication, low cost construction, and large heat transfer surfaces, fins are used in a majority of PCM-based LHTES systems. There are several different configurations of fins such as longitudinal, annular, circular, plates, pins, tree shape, and other novel geometries as shown in Figure 1 [4]. By applying extended internal fins, the average thermal conductivity and heat transfer depth of LHTES system are improved, so that the melting and solidification rate of PCMs are accelerated.…”

Section: Introduction To Heat Transfer Enhancement Techniques Of Pcmsmentioning

confidence: 99%

Heat Transfer Enhancement Technique of PCMs and Its Lattice Boltzmann Modeling

Qu¹

2019

Thermal Energy Battery With Nano-Enhanced PCM

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Phase change materials (PCMs) have several advantages for thermal energy storage due to their high energy storage density and nearly constant working temperature. Unfortunately, the low thermal conductivity of PCM impedes its efficiency of charging and discharging processes. To solve this issue, different techniques are developed to enhance the heat transfer capability of PCMs. In this chapter, the common approaches, which include the use of extended internal fins, porous matrices or metal foams, high thermal conductivity nanoparticles, and heat pipes for enhancing the heat transfer rate of PCMs, are presented in details. In addition, mathematical modeling plays a significant role in clarifying the PCM melting and solidification mechanisms and directs the experiments. As a powerful mesoscopic numerical approach, the enthalpy-based lattice Boltzmann method (LBM), which is robust to investigate the solid-liquid phase change phenomenon without iteration of source terms, is also introduced in this chapter, and its applications in latent heat thermal energy storage (LHTES) unit using different heat transfer enhancement techniques are discussed.

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Geometric and design parameters of fins employed for enhancing thermal energy storage systems: a review

Cited by 314 publications

References 65 publications

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Review of latent thermal energy storage systems for solar air‐conditioning systems

Heat Transfer Enhancement Technique of PCMs and Its Lattice Boltzmann Modeling

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