Thermal properties measurement and heat storage analysis of paraffin/graphite composite phase change material

Lachheb, Mohamed; Karkri, Mustapha; Albouchi, Fethi; Sassi, Ben Nasrallah; Fois, Magali; Sobolčiak, Patrik

doi:10.1016/j.compositesb.2014.05.011

Cited by 56 publications

(15 citation statements)

References 24 publications

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“…Although the authors did not make the measurement for 40% wt. SFG75 graphite, the thermal conductivity determined by the present experimental method follows the trend established in [15]: the PCM composite thermal conductivity increases with the mass fraction of graphite, due to the higher thermal conductivity of the graphite.…”

Section: Standard Deviation Rmentioning

confidence: 95%

“…A measurement of the same PCM composite performed by another experimental method [15] gives approximately the same value of k (k ¼ 0:289 W m À1 K À1 ).…”

Section: Standard Deviation Rmentioning

confidence: 99%

“…As stated in [15], thermal conductivity measurements have been performed on paraffin/SFG75 graphite composites with mass fraction of graphite varying from 0% wt. to 20% wt.…”

Section: Standard Deviation Rmentioning

confidence: 99%

“…On their side, Franquet et al [8] characterizes thermophysical properties of a cement mortar containing a phase change material. Recently PCM composite characterization was performed by Karkri et al [9][10][11][12][13][14][15][16] using two different experimental techniques: thermal energy storage properties, such as latent heat and heat capacities, were investigated using a Transient Guarded Hot Plate Technique (TGHPT), whereas thermal conductivities and diffusivities were measured using a periodic temperature method.…”

Section: Introductionmentioning

confidence: 99%

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A new experimental device and inverse method to characterize thermal properties of composite phase change materials

Gossard

Karkri

Al-Maadeed

et al. 2015

Composite Structures

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Section: Standard Deviation Rmentioning

confidence: 95%

“…A measurement of the same PCM composite performed by another experimental method [15] gives approximately the same value of k (k ¼ 0:289 W m À1 K À1 ).…”

Section: Standard Deviation Rmentioning

confidence: 99%

“…As stated in [15], thermal conductivity measurements have been performed on paraffin/SFG75 graphite composites with mass fraction of graphite varying from 0% wt. to 20% wt.…”

Section: Standard Deviation Rmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new experimental device and inverse method to characterize thermal properties of composite phase change materials

Gossard

Karkri

Al-Maadeed

et al. 2015

Composite Structures

Self Cite

View full text Add to dashboard Cite

“…It is a combination of two or more different materials in order to take advantage of positive properties of each constitutive material [20]. It has high strength to weight ratio (specific strength) [21], stiffness to weight ratio (specific stiffness) [22], and high resistance to heat [23] and corrosion due to chemicals. The most common composite materials used for industrial applications are carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (CFRP).…”

Section: Materials Selectionmentioning

confidence: 99%

Design, Simulation and Manufacturing of an Integrated Composite Material Parabolic Trough Solar Collector

Abdel-Hady¹,

Shakil²,

Hamed³

et al. 2016

IJET

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Abstract-Design, simulation, and manufacturing process of an integrated thermal photovoltaic closed parabolic collector (ITPVCPC) using composite material is presented in this paper. The design includes two flanges for supporting photovoltaic panels. Two cases of troughs were designed and studied, one with glass cover over the aperture area and another without it in order to investigate the structure rigidity and solar ray collection in the absorber tube. Three-dimensional modelling and structural finite element analysis (FEA) based simulation was done for the design. In the simulation, the ITPVCPC structure was subjected to the upper limits of wind pressure and temperature-rise loadings similar to the real working conditions. Optical analysis was done for the trough to study the effect of structure deformation on solar ray collection. The glass covered ITPVCPC showed higher structure deformation than the one without glass. Glass fiber with polyester resin was used in the manufacture of ITPVCPC for its low price compared to other composite materials. The study shows that glass fiber (with polyester matrix) is an ideal composite material for ITPVCPC for its high rigidity, low cost, and ease of manufacture. This design is successfully implemented and is the source of thermal and electrical power for a solar desalination system installed in Jeddah, Saudi Arabia. Keywords: Finite element analysis (FEA), concentrating solar power (CSP), hand-layup method, glass fiber reinforced polymer (GFRP) I.INTRODUCTION Fossil fuels such as petroleum oil, coal and natural gas are used as a primary energy source in developed nations. These carbon rich fuels release CO2 to the environment which has a negative effect on the atmosphere. It alters the radiation-balance of the earth and promotes global warming [1]. This has forced the consumers to think of alternate sources which would be cheap at least in the long run. Due to awareness of pollution and economics of fuel, the focus is now shifted to solar and other clean energy sources. Parabolic trough technology is currently the lowest-cost concentrating solar power (CSP) technology for electricity production [2]. Parabolic trough collector (PTC) uses a highly reflective surface to focus incident solar rays on a heat collector element (HCE) also called receiver tube. The receiver tube is placed at the point of convergence (focal point of parabola). The tube contains a working fluid that absorbs solar heat and gets heated up to temperatures of 350o C or more. It is enveloped by an evacuated (vacuumed) glass tube to reduce convective heat loss to the surrounding. The collector has a disadvantage of smaller angle of view. Therefore, to maximize the solar heat gain, a tracking mechanism is used to align it with respect to the changing position of the sun. Collector is being considered for a lot of applications like Enhanced Oil Recovery (EOR) [3], water disinfection in third world countries [4], desalination [5], refrigeration and cooling [6], heating applications [7] etc. Many innovativ...

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Thermal‐Conductivity‐Enhancing Copper‐Plated Expanded Graphite/Paraffin Composite for Highly Stable Phase‐Change Materials

Yan,

Han,

Dang

et al. 2023

ChemPhysChem

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Paraffin (PA)/expanded graphite (EG) is an important composite phase change material with low cost, high heat storage, good thermal conductivity and cycling stability. Its thermal conductivity needs to be further improved for application in the thermal management system of power lithium‐ion batteries. In this paper, copper plated expanded graphite (CPEG) with 3D porous structure was prepared by electroless copper plating method, which was used as thermal conductivity enhancing material to replace part of EG in PA/EG composite materials. For the optimized phase change material composed of 80%PA‐14%EG‐6%CPEG, the copper content is very low (0.768 wt%), but its thermal conductivity can be significantly improved without loss of latent heat and thermal cycling stability. Its thermal conductivity is increased from 11 times to 16.5 times that of paraffin while compared with the copper‐free composite material (80%PA‐20%EG). The PA/EG/CPEG composite material exhibits good temperature control effect on power lithium‐ion batteries.

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Thermal properties measurement and heat storage analysis of paraffin/graphite composite phase change material

Cited by 56 publications

References 24 publications

A new experimental device and inverse method to characterize thermal properties of composite phase change materials

A new experimental device and inverse method to characterize thermal properties of composite phase change materials

Design, Simulation and Manufacturing of an Integrated Composite Material Parabolic Trough Solar Collector

Thermal‐Conductivity‐Enhancing Copper‐Plated Expanded Graphite/Paraffin Composite for Highly Stable Phase‐Change Materials

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