Thermophysical properties estimation of paraffin/graphite composite phase change material using an inverse method

Lachheb, Mohamed; Karkri, Mustapha; Albouchi, Fethi; Mzali, Foued; Nasrallah, Sassi Ben

doi:10.1016/j.enconman.2014.03.021

Cited by 57 publications

(9 citation statements)

References 18 publications

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“…Figure 1(c) displays a typical scanning electron microscope (SEM) image of the obtained 2017 Aluminium alloy after recycling and milling step [32] used in this work with an average particle size of 90 μm. Timrex (SFG75) powder supplied by Timcal Graphite & Carbon (figure 1(d)) with spherical shape and an average size of 75 μm [33,34] were used as the reinforcement component to produce composites. The 2017 Aluminium alloy powder and Graphite powder were mixed using planetary ball mill for 30 min.…”

Section: Methodsmentioning

confidence: 99%

“…The volume percent of porosity was measured by comparing the theoretical density determined by rule of mixture and sintered densities (equation (2)): where P is the porosity and r th is the theoretical density of composite. The theoretical densities of the composites were determined using the rule of mixture (equation (3)), in which the theoretical densities of 2017 Aluminium alloy and graphite were 2790 Kg m −3 [35] and 2240 Kg m −3 [33,34], respectively.…”

Section: Methodsmentioning

confidence: 99%

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Analysis of thermo-elastic and physical properties of recycled 2017 Aluminium Alloy/Gp composites: thermal management application

Bhouri¹,

Mzali

2020

Mater. Res. Express

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This paper investigates the use of graphite in 2017 Aluminium matrix composite for thermal management systems by analyzing their thermo-elastic behavior. The composite samples were prepared with different graphite contents using powder metallurgy method based on recycled 2017 Aluminium alloy powder. The distribution of graphite particles in the 2017 Aluminium alloy matrix was investigated by a scanning electron microscope (SEM). Sintered densities of the composite samples were examined by a gravimetric method and it is noticed that in the fact of increasing the graphite content decreases the densification of composites which is confirmed by SEM analysis. Thereafter, the obtained samples were analyzed by dilatometry through measuring the coefficient of thermal expansion (CTE), which showed a decrease with the addition of graphite.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Analysis of thermo-elastic and physical properties of recycled 2017 Aluminium Alloy/Gp composites: thermal management application

Bhouri¹,

Mzali

2020

Mater. Res. Express

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“…The method is based on the use of a low temperature modulation in a parallelepiped-shaped sample (44mm  44mm  12mm) and allows obtaining all these thermo physical parameters in only one measurement with their corresponding statistical confidence bounds [12][13]. The composite sample is fixed between two metallic plates (brass to the lower plate and copper to the top plate) (figure 4).…”

Section: Description Of Methods Used For Thermal Characterization: Dicomentioning

confidence: 99%

Experimental study on thermal properties of bio-composite (gypsum plaster reinforced with palm tree fibers) for building insulation

Amara¹,

Mazioud²,

Boulaoued³

et al. 2017

IJHT

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This paper presents an experimental and theoretical study of the thermo physical properties of date palm tree fiber-reinforced plaster composites. In this work, the thermal conductivity and diffusivity of composites are determined by the "DICO" method. The palm tree fibers are incorporated, without any preliminary treatment, into a plaster mixture. Four samples containing different percentages of palm tree fibers are realized (prepared) and examined. Furthermore, the interface of palm tree fibers is observed by Scanning Electron Microscopy (SEM). The experimental results show that the reinforcement of plaster by palm fibers decreases the thermal conductivity and diffusivity. Therefore, the measured thermal conductivity is compared with the theoretical models (serial model, parallel model, Krischer model and Willy and Southwick model).

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“…One of the latest studies with expanded graphite found out that thermal conductivity of paraffin can be enhanced highly with increasing rate of expanded graphite numerically and experimentally . In another study, thermal conductivity and diffusivity of paraffin was increased gradually with the mass fraction of graphite from 0 to 20% .…”

Section: Introductionmentioning

confidence: 93%

The effects of various carbon derivative additives on the thermal properties of paraffin as a phase change material

Şahan

Fois

Paksoy

2015

Int. J. Energy Res.

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SUMMARYThe storage of thermal energy in phase change materials (PCMs) has found wide applications that enable energy conservation and management. Paraffin is a major PCM with its low cost, wide availability, and relatively high latent heat, yet its low thermal conductivity may become a drawback in high-power applications. In this study, composites of paraffin were prepared with multiwalled carbon nanotubes and activated carbon by a dispersion technique to overcome these drawbacks. Thermal, chemical, and physical influences of incorporating carbon additives with varying structures in paraffin composites on thermal storage capacity were determined. Results indicated that the thermal conductivities of paraffin-activated carbon composites (PACC) and paraffin multiwalled carbon nanotube composites (PCNC) were improved by a factor of 39.1 and 34.1%, respectively, compared with the conductivity of pure paraffin. As a bonus, the thermal energy storage capacities of PCNCs were enhanced by 9.6%, whereas this remained unchanged for PACCs.

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Thermophysical properties estimation of paraffin/graphite composite phase change material using an inverse method

Cited by 57 publications

References 18 publications

Analysis of thermo-elastic and physical properties of recycled 2017 Aluminium Alloy/Gp composites: thermal management application

Analysis of thermo-elastic and physical properties of recycled 2017 Aluminium Alloy/Gp composites: thermal management application

Experimental study on thermal properties of bio-composite (gypsum plaster reinforced with palm tree fibers) for building insulation

The effects of various carbon derivative additives on the thermal properties of paraffin as a phase change material

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