Numerical analysis of melting of nano-enhanced phase change material in latent heat thermal energy storage system

Kashani, Sina; Lakzian, E; Lakzian, Kazem; Mastiani, Mohammad

doi:10.2298/tsci111212163k

Cited by 19 publications

(8 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During discharging where the copper has transferred maximum heat to the HTF and ended up at 44 °C in 190 minutes and the similar data for brass and aluminum are 70 °C in 150 minutes and 65 °C in 190 minutes, respectively. Obviously, the charging is earlier than the discharging because of solid boundary formation during solidification of PCM during discharging which prevents heat transfer in the storage system [19,20].…”

Section: Resultsmentioning

confidence: 99%

Heat transfer enhancement of a cascaded thermal energy storage system with various encapsulation arrangements

Beemkumar¹,

Karthikeyan²,

Devarajan³

2017

THERM SCI

View full text Add to dashboard Cite

Ever increasing energy demand ever encourage for new energy production and conservation. In the present work, the cascaded latent heat solar thermal energy storage system has been developed to deliver the heat at different temperature limits and its performance on the improvement of heat transfer characteristics are studied with the use of multiple phase change material (PCM) with various encapsulation arrangements. The storage system consists of three different PCM which have different melting temperatures such as D-mannitol, D-sorbitol, and paraffin wax. Each PCM is encapsulated in different materials of spherical balls like copper, aluminum, and brass. Permanent welding of fins, inside the encapsulated balls of type rectangular, annular and pin is done for enhanced heat transfer. This work investigates for the best combination of fins which may allow the highest heat transfer rate for the least cost. It has been concluded that the transfer of energy is the highest in the use of copper balls for encapsulation of PCM with the attachment of annular fin inside the balls. With respect to energy cost per kJ of heat transfer, the PCM encapsulated in aluminum balls with annular fins may be preferred. However, in all the combinations, to gain higher efficiency of the system proper arrangements of all system components very close to each other is essential to the provision of perfect insulated storage tanks and the components of the piping circuit.

show abstract

Section: Resultsmentioning

confidence: 99%

Heat transfer enhancement of a cascaded thermal energy storage system with various encapsulation arrangements

Beemkumar¹,

Karthikeyan²,

Devarajan³

2017

THERM SCI

View full text Add to dashboard Cite

show abstract

“…The effective properties of nanofliuid such as density, heat capacity, etc., are modeled with a following simple relation [11,20]:…”

Section: Governing Equationsmentioning

confidence: 99%

“…In this paper, gas release and pressure increase during the solidification was neglected. Also, the latent heat of nanofluid is modeled as [11,20]:…”

Section: Governing Equationsmentioning

confidence: 99%

Effects of Brownian motion on freezing of PCM containing nanoparticles

Abdollahzadeh

Park

2016

THERM SCI

View full text Add to dashboard Cite

Enhancement of thermal and heat transfer capabilities of phase change materials with addition of nanoparticles is reported. The mixed nanofluid of phase change material and nanoparticles presents a high thermal conductivity and low heat capacity and latent heat, in comparison with the base fluid. In order to present the thermophysical effects of nanoparticles, a solidification of nanofluid in a rectangular enclosure with natural convection induced by different wall temperatures is considered. The results show that the balance between the solidification acceleration by nanoparticles and slowing-down by phase change material gives rise to control the medium temperature. It indicates that this kind of mixture has great potential in various applications which requires temperature regulation. Also, the Brownian motion of nanoparticles enhances the convective heat transfer much more than the conductive transfer.

show abstract

“…The results showed that the melting time of a PCM depends on geometric parameters, thermal parameters and thermo-physical properties of the PCM. Kashani et al [4] numerically studied the performance of heat transfer of PCM with different concentrations of copper nanoparticles in rectangular and cylindrical enclosures. The results showed that the cylindrical container of the same nano-PCM takes two times longer period than rectangular container.…”

Section: Introductionmentioning

confidence: 99%

Effect of Vibration on the Melting of Phase Change Material inside a Cylindrical Enclosure

Hajiyan¹,

Al-Jethelah²,

Alomai³

et al. 2018

Proceedings of the 5th International Conference of Fluid Flow, Heat and Mass Transfer (FFHMT'18)

View full text Add to dashboard Cite

The present study reports a novel numerical work on the melting of phase change material (PCM) inside a cylindrical enclosure under the application of vibration. No such work is available in the existing literature. To simulate the melting of PCM inside a vertical cylindrical enclosure, the governing equations, namely, the conservation of mass, momentum, and energy equations are solved. In addition to that enthalpy-porosity method is used to model phase change of PCM. COMSOL Multiphysics software is used to simulate the melting behaviour of a PCM during vibration conditions. The objective of the present work is to observe the melting behaviour under the application of vibration. Melting behaviour of PCM inside a vertical cylindrical enclosure has been simulated first without vibration for comparison purpose. It has been observed that vibration affects the melting behaviour significantly. This study is applicable to battery thermal management for the hybrid vehicles where PCM can be used for controlling the temperature of the battery.

show abstract

Numerical analysis of melting of nano-enhanced phase change material in latent heat thermal energy storage system

Cited by 19 publications

References 24 publications

Heat transfer enhancement of a cascaded thermal energy storage system with various encapsulation arrangements

Heat transfer enhancement of a cascaded thermal energy storage system with various encapsulation arrangements

Effects of Brownian motion on freezing of PCM containing nanoparticles

Effect of Vibration on the Melting of Phase Change Material inside a Cylindrical Enclosure

Contact Info

Product

Resources

About