graphite foams infiltrated with phase change materials

Continuous Carbon Nanotube

Continuous ultrathin graphite foams (UGFs) have been actively researched recently to obtain composite materials with increased thermal conductivities. However, the large pore size of these graphitic foams has resulted in large thermal resistance values for heat conduction from inside the pore to the high thermal conductivity graphitic struts.

Battery Thermal Management Using Phase Change

Simulating the heat and mass transfer of PCM and PCM-foam materials requires the coupling of mass and energy between solid and liquid during phase change [15,16]. This study focuses on effects of foam materials on the thermal management of batteries and simplified the simulation by comparing the air, water, and water-foam composite materials as coolants.

Development of graphite foam infiltrated with MgCl2 for

Graphite foams with two porosities were infiltrated with MgCl2. The infiltrated composites were evaluated for density, heat of fusion, melting/freezing temperatures, and thermal diffusivities. Estimated thermal conductivities of MgCl2/graphite foam composites were significantly higher than those of MgCl2 alone over the measured temperature range.

Effect of voids on solidification of phase change

Effect of voids on solidification of phase change materials infiltrated in graphite foams Conference Name: Proceedings of the ASME 2012 Summer Heat Transfer Conference Location: Puerto Rico, USA Date: 7/2012 List of Authors: M. Moeini Sedeh, J. M. Khodadadi

Numerical Study of a Thermal Energy Storage Device

Phase change materials (PCM) utilized for energy storage have notoriously low thermal conductivities. As a result, systems based only on a PCM have large internal thermal gradients and slow reaction times making them impractical for most applications. To overcome these issues, various approaches have been utilized to increase the conductivity of the PCM systems. One approach includes the

Investigation of Aluminum Foams and Graphite Fillers for Improving the Thermal Conductivity of Paraffin Wax

Investigation of Aluminum Foams and Graphite Fillers for Improving the Thermal Conductivity of Paraffin Wax-based Phase Change Materials Javieradrian Ruiz, Yash Ganatra, Alex Bruce, John Howarter, and Amy M. Marconnet Purdue University West Lafayette, IN

Evaluation of the Transient Thermal Performance of a Graphite

increase the ability of graphite foam to store heat energy, it was infiltrated with a phase change material, paraffin wax. Filling the foam with a phase change material (PCM) creates a composite that transfers heat through an interconnected network of ligaments to

Graphite foam infiltration with mixed chloride salts as PCM

2020/10/1Graphite infiltrated PCM will need to be enclosed in an appropriate material such as stainless steel or Nickel based alloys at higher temperatures forming Encapsulated Graphite Infiltrated Phase Change Materials (EGIPCM).

copper foam, gallium, liquid metal, phase change,

ABSTRACT In this study, the effects of copper foam and ultrasonic vibration on the melting process of low-melting gallium in a rectangular vessel were experimentally investigated. The effective thermal conductivity, heating wall temperature, most melting duration

Continuous Carbon Nanotube

Continuous ultrathin graphite foams (UGFs) have been actively researched recently to obtain composite materials with increased thermal conductivities. However, the large pore size of these graphitic foams has resulted in large thermal resistance values for heat conduction from inside the pore to the high thermal conductivity graphitic struts.

Preparation and thermal properties of phase change

Preparation and thermal properties of phase change materials based on paraffin with expanded graphite and carbon foams prepared from sucroses Zhaoyu Yin, a Zhaohui Huang,* a Ruilong Wen, a Xiaoguang Zhang, a Bo Tan, a Yan'gai Liu, a Xiaowen Wu a and Minghao Fang * a

[PDF] Hierarchical graphene foam

Recently, graphene foam (GF) with a three-dimensional (3D) interconnected network produced by template-directed chemical vapor deposition (CVD) has been used to prepare composite phase-change materials (PCMs) with enhanced thermal conductivity. However, the pore size of GF is as large as hundreds of micrometers, resulting in a remarkable thermal resistance for heat transfer from the PCM

Effect of Voids on Solidification of Phase Change Materials

Sedeh, MM, Khodadadi, JM. Effect of Voids on Solidification of Phase Change Materials Infiltrated in Graphite Foams. Proceedings of the ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer

Preparation and thermal properties of phase change

Preparation and thermal properties of phase change materials based on paraffin with expanded graphite and carbon foams prepared from sucroses Zhaoyu Yin, a Zhaohui Huang,* a Ruilong Wen, a Xiaoguang Zhang, a Bo Tan, a Yan'gai Liu, a Xiaowen Wu a and Minghao Fang * a

Graphite foams infiltrated with phase change materials as

2008/1/1In this work, a numerical study is proposed to investigate and predict the thermal performance of graphite foams infiltrated with phase change materials, PCMs, for space and terrestrial energy storage systems. The numerical model is based on a volume averaging

Solidification of Phase Change Materials Infiltrated in

The presence of voids negatively affects the thermal and phase change performance of TES composites due to the thermophysical properties of air in comparison with PCM and porous structure. This paper investigates the effect of voids on solidification of PCM, infiltrated into the pores of graphite foam as a highly conductive porous medium with interconnected pores.

Review on graphite foam as thermal material for heat exchangers

Review on graphite foam as thermal material for heat exchangers Wamei Lin, Jinliang Yuan, Bengt Sundn* Department of Energy Sciences, Lund University, P.O.Box 118, SE-22100, Lund, Sweden * Corresponding author. Tel: +46 46 2228605, Fax: +46 46

Thermal Energy Storage and Mechanical Performance of

The aim of this study was to enhance the thermal comfort properties of crude glycerol (CG) derived polyurethane foams (PUFs) using phase change materials (PCMs) (2.5ndash;10.0% (wt/wt)) to contribute to the reduction of the use of non-renewable resources and increase energy savings. The main challenge when adding PCM to PUFs is to combine the low conductivity of PUFs whilst taking

Multiresponsive Shape

Strong rigidity, low thermal conductivity, and short of multi-driven capabilities of form-stable phase change materials (FSPCMs) have limited their practical utilization. Herein, we report a shape-adaptable FSPCM with the coinstantaneous light/electro-driven shape memory properties and light/electro-to-thermal energy storage performance. The FSPCM is fabricated by incorporating the poly

Influence of Nanoparticles and Graphite Foam on the

Acetamide is a promising phase change materials (PCMs) for thermal storage,but the large supercooling during the freezing process has limited its application. In this study, we prepared acetamide-SiOsub2/sub composites by adding nano-SiOsub2/sub into acetamide. This modified PCM was then impregnated into the porous graphite foam forming acetamide-SiOsub2/sub-graphite

Evaluation of the Transient Thermal Performance of a

Filling the foam with a phase change material (PCM) creates a composite that transfers heat through an interconnected network of ligaments to a large surface area of PCM for absorption. Foams were made at various pressures to understand the effect of porosity, which also controls infiltrated wax fraction, on the thermal performance of the composite.

[PDF] Hierarchical graphene foam

Recently, graphene foam (GF) with a three-dimensional (3D) interconnected network produced by template-directed chemical vapor deposition (CVD) has been used to prepare composite phase-change materials (PCMs) with enhanced thermal conductivity. However, the pore size of GF is as large as hundreds of micrometers, resulting in a remarkable thermal resistance for heat transfer from the PCM

THERMAL CHARACTERISTICS OF PITCH BASED CARBON FOAM AND PHASE CHANGE MATERIALS

Phase-change materials have been in use for temperature regulation by NASA as far back as the lunar rover (6:1-1) because of their ability to absorb thermal energy while maintaining a nearly constant temperature during the phase change; therefore, creating a

Thermal Energy Storage and Mechanical Performance of

The aim of this study was to enhance the thermal comfort properties of crude glycerol (CG) derived polyurethane foams (PUFs) using phase change materials (PCMs) (2.5ndash;10.0% (wt/wt)) to contribute to the reduction of the use of non-renewable resources and increase energy savings. The main challenge when adding PCM to PUFs is to combine the low conductivity of PUFs whilst taking

Closed Cell Aluminium Foams with Phase Change Material

Closed cell aluminium foam samples and panels with phase change material (PCM) infiltrated in vacuum were investigated. Metallic foams, aluminium foams, phase change materials, zero energy buildings, heat dissipation. CITE THIS PAPER (2017) Closed

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