Thermal performance assessment of lauric acid and palmitic acid based multi-transformation phase change material and exfoliated graphite composites

Nirwan, Anju; Mondal, Bobin; Kumar, Jeetendra; Bera, Anuradha; Kumar, R.

doi:10.1080/15567036.2020.1818004

Cited by 6 publications

(3 citation statements)

References 24 publications

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“…12−16 Fatty acids have attracted much attention for their appropriate phase change temperature, high phase change latent heat, nontoxicity, noncorrosiveness, no or small volume change, small degree of subcooling, good thermal reliability, abundant raw materials, easily obtainable, and other advantages. 17, 18 More importantly, two or more fatty acids can be mixed into a eutectic mixture according to the eutectic effect of fatty acids to reduce the phase change temperature and expand its temperature application range. 19,20 Although fatty acid eutectic mixtures have many advantages, they also have the disadvantages of poor thermal conductivity and easy leakage.…”

Section: Introductionmentioning

confidence: 99%

“…Energy storage technology is one of the effective methods to solve the energy crisis, and it has broad application prospects in the fields of shifting peaks and valleys of power, solar energy utilization, industrial waste heat recycling, building heating, and air conditioning. − Thermal energy storage can generally be divided into chemical energy storage, − sensible heat storage, and latent heat storage. , Latent heat storage has many advantages, including high energy storage density, low temperature change, excellent material stability, and high safety, so it has received a significant amount of attention and application. − Fatty acids have attracted much attention for their appropriate phase change temperature, high phase change latent heat, nontoxicity, noncorrosiveness, no or small volume change, small degree of subcooling, good thermal reliability, abundant raw materials, easily obtainable, and other advantages. , More importantly, two or more fatty acids can be mixed into a eutectic mixture according to the eutectic effect of fatty acids to reduce the phase change temperature and expand its temperature application range. , Although fatty acid eutectic mixtures have many advantages, they also have the disadvantages of poor thermal conductivity and easy leakage. − At present, the common method to solve these problems is to add materials with high thermal conductivity and porous structures to fatty acid PCMs. − Due to its low density, high thermal conductivity, and porous structure, expanded graphite (EG) is frequently utilized as a substrate material, which not only minimizes liquid leakage but also significantly improves the thermal conductivity of the PCMs. − …”

Section: Introductionmentioning

confidence: 99%

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Preparation and Thermal Performance of Fatty Acid Binary Eutectic Mixture/Expanded Graphite Composites as Form-Stable Phase Change Materials for Thermal Energy Storage

Zhou

Xiao

2023

ACS Omega

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A series of fatty acid binary eutectic mixture/expanded graphite (FABEM/EG) composite phase change materials (CPCMs) were prepared by absorbing a liquid FABEM into the EG. The thermal properties, thermostability, and thermoreliability were determined by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and thermal cycling tests, respectively. Fourier transform infrared spectrometry (FT-IR) and scanning electron microscopy (SEM) were used to analyze the chemical structure and microstructure, respectively. Thermal conductivity measurements and heat storage/release experiments were carried out to study the heat transfer performance. The DSC test results show that the phase transition temperatures and latent heat of these CPCMs are in the range of 17.8–55.2 °C and 134.9–176.2 J/g, respectively. FT-IR analysis indicates there is only a simple physical adsorption between EG and the PCM and no chemical reaction occurs. SEM results show that the fatty acid binary eutectic mixtures are well adsorbed in the pores of EG, and EG can provide a certain mechanical strength and prevent phase change materials from leaking. The thermal conductivity measurement and heat storage/release experiment show that the addition of EG greatly improves the thermal conductivities of the CPCMs. TGA test results and thermal cycle tests show that the CPCMs have excellent thermal stability and long-term cycling thermal reliability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Thermal Performance of Fatty Acid Binary Eutectic Mixture/Expanded Graphite Composites as Form-Stable Phase Change Materials for Thermal Energy Storage

Zhou

Xiao

2023

ACS Omega

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“…Many initiatives were made to optimize the thermal conductivity of these eutectics. Fabrication of enhanced thermal conductive eutectic PCMs by integrating components like carbon or metallic nanoparticles with higher thermal conductivity is discussed in this review paper.Anju Nirwan(Nirwan et al 2020) examined the impact of exfoliated graphite on eutectic mixture of lauric acid and palmitic acid. Composite samples of LA/PA in ratio 63:37 was prepared with different wt.% of EG.…”

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confidence: 99%

State-of-the-Art Review of Organic Phase Change Materials for Low-Temperature Thermal Energy Storage Technology

Bidiyasar

Kumar

Jakhar

2022

Preprint

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The demand for thermal comfort by increased population results in growing energy consumption worldwide, resulting in deterioration of the global climate caused by greenhouse gas emissions. The latent heat storage technique is efficient because it can be operated at a minimum range of temperature. Especially, Phase change materials (PCMs), which have a tendency for solid-liquid phase transformation, have become a topic of great research interest. Organic PCM may be utilized in many thermal storage system applications. But none of the organic PCM in its pure form possesses all of the required properties for usage in real applications. So, to use a particular PCM in a variety of applications, eutectic PCM may be designed. The thermal characteristics like phase transition temperature and enthalpy of fusion may easily be adjusted by adding at least two PCMs to prepare eutectics with a lower melting temperature and higher energy density than either of the individual PCMs. The optimal composition of PCMs in the eutectic material and the lowest melting point are computed using the Schroder-Van Laar model. Also, because of the poor heat conduction of eutectic PCM, it puts a barrier to utilization in real-world applications. Various materials can be added in order to optimize thermal conductivity of these eutectic PCMs. Therefore, eutectic PCMs have the potential to be utilized for low-temperature heat energy storage practical applications and will progressively be included in worldwide heat management solutions in the coming years, and their price should indicate that they are worth the investment.

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Evaluation of heat transfer performance of PCM based composites for thermal management of electronics

Nirwan

Gupta

Matta

et al. 2022

Materials Today: Proceedings

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Thermal performance assessment of lauric acid and palmitic acid based multi-transformation phase change material and exfoliated graphite composites

Cited by 6 publications

References 24 publications

Preparation and Thermal Performance of Fatty Acid Binary Eutectic Mixture/Expanded Graphite Composites as Form-Stable Phase Change Materials for Thermal Energy Storage

Preparation and Thermal Performance of Fatty Acid Binary Eutectic Mixture/Expanded Graphite Composites as Form-Stable Phase Change Materials for Thermal Energy Storage

State-of-the-Art Review of Organic Phase Change Materials for Low-Temperature Thermal Energy Storage Technology

Evaluation of heat transfer performance of PCM based composites for thermal management of electronics

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