Phase change materials and carbon nanostructures for thermal energy storage: A literature review

Amaral, C.; Vicente, Romeu; Marques, Paula A.A.P.; Barros‐Timmons, Ana

doi:10.1016/j.rser.2017.05.093

Cited by 193 publications

(58 citation statements)

References 140 publications

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“…Exactly when degree extends, the PCM microcapsules acclimatized warmth and taking care of this essentialness in the dissolved stage transition products. Exactly while degree decreased, the microcapsule of PCM eject this set away warmth essentialness and along these lines PCM solidify [5]. Stage change mode changes to liquid to solid and the other route around is schematically showed up in fig.1.…”

Section: Methodsmentioning

confidence: 95%

Computational Fluid Dynamics of Roof Top using PCM for Efficient Thermal Management

Prakash*,

Saravanan,

Victoria A.K

et al. 2019

IJITEE

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This paper presents a simulated parametric study to investigate the thermal management of the roof panel using phase change materials (PCM). The warmth engrossing and expelling ability of PCM is utilized to regulate the warmth produced in the room. A single and double layer of the PCM was kept between the roof and concrete. The energy saving level has noted on particular time without PCM materials, the same method as performed with single layer PCM and double layer PCM. Along these lines, it's exceedingly important to improve the warm presentation, so as to accomplish the objective of vitality sparing. So the Thermal Energy Storage (TES) is perhaps the most ideal approaches to improve thermal execution of building. The major classifications of the heat energy storage are practical and dormant. This paper is focused on one point such as PCM materials with to reduce the heat generated inside the room. CFD is seen as a superior substitute in present day ventures and has the capacity of taking care of such difficult issues. From the assistance of CFD, relative examinations are produced to consider the accompanying cases, for example, Case 1: Concrete piece with rooftop top section off without PCM. Case 2: Concrete slab with roof top slab off with single layer PCM. Case 3: Concrete slab with roof top slab off with Double layer PCM. The relative temperature design inside the room is utilized to comprehend the warm solace in the room and the upsides of utilizing PCM.

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Section: Methodsmentioning

confidence: 95%

Computational Fluid Dynamics of Roof Top using PCM for Efficient Thermal Management

Prakash*,

Saravanan,

Victoria A.K

et al. 2019

IJITEE

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“…PCM encapsulation has been used extensively in building cooling systems where air is passed through flat containers of PCM [52]. The effect of encapsulated PCM has a good scope in enhancing the performance of LHS systems [53] used in the solar absorption cooling system.…”

Section: Pcm Containmentmentioning

confidence: 99%

A Comprehensive Review of Thermal Energy Storage

2018

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Thermal energy storage (TES) is a technology that stocks thermal energy by heating or cooling a storage medium so that the stored energy can be used at a later time for heating and cooling applications and power generation. TES systems are used particularly in buildings and in industrial processes. This paper is focused on TES technologies that provide a way of valorizing solar heat and reducing the energy demand of buildings. The principles of several energy storage methods and calculation of storage capacities are described. Sensible heat storage technologies, including water tank, underground, and packed-bed storage methods, are briefly reviewed. Additionally, latent-heat storage systems associated with phase-change materials for use in solar heating/cooling of buildings, solar water heating, heat-pump systems, and concentrating solar power plants as well as thermo-chemical storage are discussed. Finally, cool thermal energy storage is also briefly reviewed and outstanding information on the performance and costs of TES systems are included.

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“…There are several methods of enhancing the heat transfer in a latent heat thermal storage: thermal conductivity enhancement using low‐density materials such as carbon fibres and paraffin composites, porous materials either as a metal foam (copper, steel, or aluminium) or as porous material like graphite, metal matrices, and encapsulation methods using graphite, polymers, or the nickel film coating of PCM copper spheres; enhancement with fins (extended metal surface), HPs, and cascaded storage (multiple PCMs); and direct heat transfer techniques . The most common enhancement techniques involve the use of extended surfaces such as fins and HPs or using multiple PCMs of different melting points .…”

Section: Heat Transfer Enhancement Technologiesmentioning

confidence: 99%

“…Fan et al and Li et al reported the preparation and energy storage properties of PCM microcapsules based on paraffin cores and a silica shell material via in situ polycondensation. Figure shows the steps involved in the preparation of a paraffin micro‐encapsulated SiO 2 PCM …”

Section: Heat Transfer Enhancement Technologiesmentioning

confidence: 99%

“…The problem of predicting the behavior of phase change systems is difficult due to its inherent nonlinear nature at moving interfaces, for which displacement rate is controlled by the latent heat lost or absorbed at the boundary. The following energy equation, known as the Stephan condition, describes this transition process:

normalρ L \frac{normald s ((), τ)}{dτ} = λ_{s} \frac{normalδ t_{s}}{δτ} - λ_{l} \frac{normalδ t_{l}}{δτ}

where ρ is the density of PCM (it is not specified if it is solid or liquid); L is the latent heat of fusion of PCM; s (τ) is the surface position; λ s and λ l are the thermal conductivities of the solid and liquid PCM, respectively; t s and t l are the solid and liquid phase temperatures respectively; and τ is the time.…”

Section: Heat Transfer Analysismentioning

confidence: 99%

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Review on heat transfer analysis in thermal energy storage using latent heat storage systems and phase change materials

2018

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Summary Thermal energy storage (TES) is a technology that stocks thermal energy by heating or cooling a storage medium so that the stored energy can be used later for heating and cooling applications and for power generation. TES has recently attracted increasing interest to thermal applications such as space and water heating, waste heat utilisation, cooling, and air conditioning. Phase change materials (PCMs) used for the storage of thermal energy as latent heat are special types of advanced materials that substantially contribute to the efficient use and conservation of waste heat and solar energy. This paper provides a comprehensive review on the development of latent heat storage (LHS) systems focused on heat transfer and enhancement techniques employed in PCMs to effectively charge and discharge latent heat energy, and the formulation of the phase change problem. The main categories of PCMs are classified and briefly described, and heat transfer enhancement technologies, namely dispersion of low‐density materials, use of porous materials, metal matrices and encapsulation, incorporation of extended surfaces and fins, utilisation of heat pipes, cascaded storage, and direct heat transfer techniques, are also discussed in detail. Additionally, a two‐dimensional heat transfer simulation model of an LHS system is developed using the control volume technique to solve the phase change problem. Furthermore, a three‐dimensional numerical simulation model of an LHS is built to investigate the quasi‐steady state and transient heat transfer in PCMs. Finally, several future research directions are provided.

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Phase change materials and carbon nanostructures for thermal energy storage: A literature review

Cited by 193 publications

References 140 publications

Computational Fluid Dynamics of Roof Top using PCM for Efficient Thermal Management

Computational Fluid Dynamics of Roof Top using PCM for Efficient Thermal Management

A Comprehensive Review of Thermal Energy Storage

Review on heat transfer analysis in thermal energy storage using latent heat storage systems and phase change materials

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