Lattice Boltzmann application on the PCM solidification within a rectangular finned container

Talati, Faramarz; Taghilou, Mohammad

doi:10.1016/j.applthermaleng.2015.03.017

Cited by 32 publications

(12 citation statements)

References 24 publications

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“…Nevertheless, the ability of the phase change material for maintaining the temperature becomes poorer after raising the heat flux. In addition, Talati and Taghilou [390] have applied Eshraghi and Felicelli's model to simulate the solidification of phase change materials within a rectangular finned container. It was shown that the maximum required time for the solidification process of phase change materials inside the container occurs when the container aspect ratio equals 0.5 and changing the fin's material from aluminum to copper has no significant impact on the freezing history even at low aspect ratios.…”

Section: Energy Storage With Phase Change Materialsmentioning

confidence: 99%

Lattice Boltzmann methods for multiphase flow and phase-change heat transfer

Luo

Kang

et al. 2016

Progress in Energy and Combustion Science

733

365

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Over the past few decades, tremendous progress has been made in the development of particle-based discrete simulation methods versus the conventional continuum-based methods. In particular, the lattice Boltzmann (LB) method has evolved from a theoretical novelty to a ubiquitous, versatile and powerful computational methodology for both fundamental research and engineering applications. It is a kinetic-based mesoscopic approach that bridges the microscales and macroscales, which offers distinctive advantages in simulation fidelity and computational efficiency. Applications of the LB method are now found in a wide range of disciplines including physics, chemistry, materials, biomedicine and various branches of engineering. The present work provides a comprehensive review of the LB method for thermofluids and energy applications, focusing on multiphase flows, thermal flows and thermal multiphase flows with phase change. The review first covers the theoretical framework of the LB method, revealing certain inconsistencies and defects as well as common features of multiphase and thermal LB models. Recent developments in improving the thermodynamic and hydrodynamic consistency, reducing spurious currents, enhancing the numerical stability, etc., are highlighted. These efforts have put the LB method on a firmer theoretical foundation with enhanced LB models that can achieve larger liquid-gas density ratio, higher Reynolds number and flexible surface tension. Examples of applications are provided in fuel cells and batteries, droplet collision, boiling heat transfer and evaporation, and energy storage. Finally, further developments and future prospect of the LB method are outlined for thermofluids and energy applications.3

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Section: Energy Storage With Phase Change Materialsmentioning

confidence: 99%

Lattice Boltzmann methods for multiphase flow and phase-change heat transfer

Luo

Kang

et al. 2016

Progress in Energy and Combustion Science

733

365

View full text Add to dashboard Cite

show abstract

“…As presented in the previous sections, the extended fins could be used to increase the heat transfer depth in LHTES system and accelerate the energy storage efficiency. In the recent years, LBM is applied by several researches to study the solid-liquid phase change of PCMs with extended fins [142,156,157]. Jourabian et al studied the melting process of PCM in a cavity with a horizontal fin heated from the sidewall by enthalpy-based D2Q5 LBM [156].…”

Section: Applications Of Lbm Modeling In Latent Heat Thermal Energy Smentioning

confidence: 99%

“…They also found that although varying the position of the fin from the bottom to the middle has a negligible effect on melting rate, the melting time is increased once the fin is mounted on the top of LHTES cavity. Talati and Taghilou used an implicit LBM to study the PCM solidification in a rectangular finned container [157]. It was found that the optimum aspect ratio of container for solidification equals to 0:5, and changing the fin material from aluminum to copper has no significant influence on the solidification rate.…”

Section: Applications Of Lbm Modeling In Latent Heat Thermal Energy Smentioning

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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“…Another methodology used to solve the heat flow through PCMs by means of finite elements is the lattice Boltzmann method. Both the stability and the efficiency of the method in solving the particular heat transfer problem have been studied by several researchers [6][7][8][9][10]. In addition to the numerical methods used for the solution of the differential equations describing the phenomenon of the heat transfer to and from the PCM, ready-to-use software has also been developed for the simulation of each PCM application.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of Pure and Nanoparticle-Enhanced PCM—Application in Concentric Tube Heat Exchanger

Koronaki

2020

Energies

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In this paper, organic phase change materials are modeled and studied both numerically and computationally. The results are compared with those of other research available in the international literature. Regardless of their heat storing capacity, the low heat conductivity of PCMs constitutes a significant obstacle to the further advancement of technologies pertaining to latent heat energy storage, as it hampers the immediate response of systems both at heat storage and at heat recovery. In this work, two types of nanoparticles are used as enhancing media, and the calculations are repeated in terms of melting front and stored energy enhancement. The results show that a 6.5% value for the melt percentage enhancement and a 5.5% value for the heat stored enhancement are exhibited when copper nanoparticles are utilized.

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Lattice Boltzmann application on the PCM solidification within a rectangular finned container

Cited by 32 publications

References 24 publications

Lattice Boltzmann methods for multiphase flow and phase-change heat transfer

Lattice Boltzmann methods for multiphase flow and phase-change heat transfer

Heat Transfer Enhancement Technique of PCMs and Its Lattice Boltzmann Modeling

Thermal Analysis of Pure and Nanoparticle-Enhanced PCM—Application in Concentric Tube Heat Exchanger

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