Enhanced heat transfer in a PCM shell-and-tube thermal energy storage system

Wołoszyn, Jerzy; Szopa, Krystian; Czerwiński, Grzegorz

doi:10.1016/j.applthermaleng.2021.117332

Cited by 67 publications

(9 citation statements)

References 58 publications

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Section: Cfd Approaches For Phase Change Simulationmentioning

confidence: 99%

“…Various other optimized and bionic fin structures have also been proposed and simulated, such as the shell-andtube LHS system with topology-optimized fins, 275 helical-coiled-conical tubes and spiral fins, 83 fractaltree-shaped fins, 276 and rectangular soft-pack battery with biomimetic honeycomb-finned PCM. 277 (3) It is possible to improve the thermal conductivity of LHS by inserting PCM into porous foams (Figure 9 (b)).…”

Section: Thermal Enhancementmentioning

confidence: 99%

“…Several CFD methods based on the fixed scheme have been developed to simulate the melting and solidification process. These methods include the enthalpy porosity model, − the apparent heat capacity model/modified heat capacity model, , the effective heat capacity method, , and the mixture model . The mass and momentum equations for solving the Stefan problems can be obtained through the following: ∂ ρ ∂ t + ∇ · false( ρ bold-italicu false) = 0 ∂ false( ρ bold-italicu false) ∂ t + ∇ · false( ρ bold-italicu bold-italicu false) = − ∇ P + ∇ · false( bold-italicτ̃ c false) + F a + F b + F s o u r …”

Section: Cfd Approaches For Phase Change Simulationmentioning

confidence: 99%

“…The critical value of total fin length was also proved to be increased with the increasing of the Rayleigh number ( R a = g β false( T − T l false) L c a v i t y 3 false( μ / ρ false) D P C M , D P C M = k ρ C p ). Various other optimized and bionic fin structures have also been proposed and simulated, such as the shell-and-tube LHS system with topology-optimized fins, helical-coiled-conical tubes and spiral fins, fractal-tree-shaped fins, and rectangular soft-pack battery with biomimetic honeycomb-finned PCM It is possible to improve the thermal conductivity of LHS by inserting PCM into porous foams (Figure (b)).…”

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

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Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Phase change is a phenomenon that has been extensively utilized in chemical engineering, energy, electronics, vehicle, and space exploration. From both the science and engineering perspectives, gaining a profound understanding of the intricacies of multiphase flow processes accompanied by heat and mass transfer due to phase change is of fundamental importance. Indeed, the computational fluid dynamics (CFD) has been increasingly applied as an effective tool to give an in-depth and efficient analysis of the phase change processes, thereby enhancing our understanding and capacity to control and optimize the phase change effects in these processes. This paper seeks to provide a comprehensive review of the utilization of CFD methodologies in the simulations of phase change flows across various applications, including temperature management, drying, separation and purification, and others. First, the CFD models at various scales that are developed to elucidate the phase change processes are summarized. Second, the noteworthy advances in the recent CFD simulation work on various phase change processes are presented, respectively. Finally, the challenges and potential prospects to facilitate the application of the phase change flow are discussed. The current review aims to offer insightful guidance for the CFD modeling of phase change processes in numerous engineering application scenarios.

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Section: Cfd Approaches For Phase Change Simulationmentioning

confidence: 99%

Section: Thermal Enhancementmentioning

confidence: 99%

Section: Cfd Approaches For Phase Change Simulationmentioning

confidence: 99%

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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“…It is found that the energy storage device with longitudinal fins has the best performance in the energy storage process. Wooszyn et al (Wooszyn et al, 2021) studied a new double-tube latent heat thermal energy storage unit and compared the melting time and efficiency of eight different schemes. It is found that the new double-tube latent heat thermal energy storage units can significantly shorten the melting time of PCM compared with the three structures of horizontal, vertical, and spiral winding.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Heat Transfer Characteristics of an Inclined Shell-and-Tube Phase-Change Thermal Energy Storage Unit

Zhang

Wang

et al. 2022

Front. Energy Res.

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Detailed experimental investigation is presented for the heat transfer characteristics of an inclined shell-and-tube phase-change thermal energy storage unit. For the case of inclined angle α = π/4, the solid–liquid interface presented a concave surface because the heat transfer can be affected not only by conduction in the phase-change material (PCM) domain but also by natural convection significantly. The heat transfer rate increases with the increasing flow rate and inlet temperature of heat transfer fluid (HTF), but the flow rate of the HTF has little effect on the charging process for the case of qv ≥ 40 L/h. The heat transfer rate of PCM above the HTF tube increases with the increase of inclined angle. The effects of inclined angle on the heat transfer rate can be not negligible due to the obvious natural convection in the charging process.

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Effects of segmentation in composite phase change material on melting/solidification performance of triplex‐tube thermal energy storage systems

Alam,

Kumar,

Gupta

2024

Can J Chem Eng

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In this work, a numerical evaluation of the melting/solidification performance of phase change material (PCM) filled inside a triplex‐tube latent heat storage unit has been carried out. To enhance the melting/solidification performance, the porous Cu metal foam (MF) was embedded inside PCM (termed as composite PCM). Alternative segments of pure PCM and composite PCM have been allocated in such a way that both the pure PCM and composite PCM occupy the equal annular area (i.e., equal volumes). Influence of increasing number of segments was delineated on the melting/solidification rate, complete melting time, and thermal energy storage/recovery enhancement. The comparisons were drawn with reference to the model having two segments of PCM and composite PCM. The results show that the model containing 64 segments with alternate allocations of PCM and composite PCM has a faster melting/solidification rate than other models. With 32 alternate segments of MF, the full melting/solidification time reduced by 23%/77% with respect to the case with one segment of MF only. The melting/solidification performance gets saturated beyond 32 segments (M‐5) and negligible variation (only ~1%) in the thermal performance was noticed upon further segmentation. Finally, the model M‐5 proved as the best model considering the aspects of augmented melting/solidification rate and associated complexities. Moreover, the heterogeneity of MF applied in 32‐segment model confirmed that the anisotropic MF results in an increased melting rate and leads over other random isotropic distributions of MF.

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Enhanced heat transfer in a PCM shell-and-tube thermal energy storage system

Cited by 67 publications

References 58 publications

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Experimental Study on the Heat Transfer Characteristics of an Inclined Shell-and-Tube Phase-Change Thermal Energy Storage Unit

Effects of segmentation in composite phase change material on melting/solidification performance of triplex‐tube thermal energy storage systems

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