Synthesis and thermal energy storage properties of ethylene dilauroyl, dimyristoyl, and dipalmitoyl amides as novel solid–liquid phase change materials

Alkan, Cemil; Canik, Gülçin; Dünya, Hamza; Sarı, Ahmet

doi:10.1016/j.solmat.2011.01.018

Cited by 29 publications

(26 citation statements)

References 23 publications

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“…Canik and Alkan et al [84,85] prepared a variety of amide functionalized PCMs by condensing carboxylic acid chloride with hexamethylenediamine. With the increase in C atoms in the carboxyl group, the phase transition temperature and enthalpy of hexamethylene dilauroyl, dimyristoyl, and dipalmitamide increased correspondingly, showing a good thermal storage property and prospects for wide application.…”

Section: Organic Pcms With Carbon Fillersmentioning

confidence: 99%

Carbon-Filled Organic Phase-Change Materials for Thermal Energy Storage: A Review

et al. 2019

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Phase-change materials (PCMs) are essential modern materials for storing thermal energy in the form of sensible and latent heat, which play important roles in the efficient use of waste heat and solar energy. In the development of PCM technology, many types of materials have been studied, including inorganic salt and salt hydrates and organic matter such as paraffin and fatty acids. Considerable research has focused on the relationship between the material structure and energy storage properties to understand the heat storage/emission mechanism involved in controlling the energy storage performance of materials. In this study, we review the application of various carbon-filled organic PCMs in the field of heat storage and describe the current state of this research.

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Section: Organic Pcms With Carbon Fillersmentioning

confidence: 99%

Carbon-Filled Organic Phase-Change Materials for Thermal Energy Storage: A Review

et al. 2019

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“…The organic PCMs currently prepared from TAGs are generally linear aliphatic molecules analogous to the well‐established petroleum‐based paraffin wax PCMs. Examples include fatty acids, esters, alcohols, carbonates, and amides . Generally, vegetable oil–derived organic PCMs are nontoxic, exhibit reproducible low volume changes during the solid‐liquid/liquid‐solid phase transitions, and melt congruently with high latent heats (145 to 218 J/g) and little or no supercooling.…”

Section: Introductionmentioning

confidence: 99%

“…Examples include fatty acids, esters, [6][7][8] alcohols, 9,10 carbonates, 11 and amides. [12][13][14] Generally, vegetable oil-derived organic PCMs are nontoxic, exhibit reproducible low volume changes during the solid-liquid/ liquid-solid phase transitions, and melt congruently with high latent heats (145 to 218 J/g) and little or no supercooling. However, high-melting organic PCMs are scarce.…”

Section: Introductionmentioning

confidence: 99%

Lipid‐derived monoamide as phase change energy storage materials

et al. 2019

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Summary One of the major shortcomings of current organic phase change materials (PCMs) is their relatively low melting points, typically below 80°C, which limits their integration into thermal energy storage (TES) systems. The present work was aimed at developing lipid‐derived PCMs with increased melting points which would be suitable for TES applications requiring higher melting points without compromising other key properties such as enthalpy. The introduction of an amide group into the structure of linear saturated fatty acids was used as a means to increase intermolecular interactions and therefore crystallization and melting points. A series of six linear monoamides with differing chain length and symmetry about the amide group were investigated for thermal stability, thermal transition, flow behavior, and crystal structure to establish the structure‐property relationships relevant to TES. The presence of the highly polar amide group in the aliphatic fatty acid–derived molecules resulted in notable improvement in performance compared with the analogous monofunctional molecules: Increases in melting points (79°C‐96°C) and high enthalpies of fusion (155‐201 J/g) were recorded. Fundamental relationships between structure, processing, and macroscopic physicochemical properties, never before elucidated, were revealed in the study. The study revealed a step‐like variation of macroscopic properties: a surprising outcome of the competition between intermolecular attractions, symmetry effects, and mass transfer limitations. The predictive structure‐function relationships established in this work will allow the straightforward engineering of monoamide architectures that can extend the range of organic PCMs and deliver thermal properties desirable for TES applications.

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“…The goal of PEM is to store the energy from natural source (for example, solar heat) or prevent the equipment from overheating. In solar thermal power plant by using PEM, solar light is gathered in a solar collector and then changed into heat energy [3][4][5]. A part of the heat energy is used for heating the steam power and another part is stored to ensure continuous power when solar light is insufficient.…”

Section: Introductionmentioning

confidence: 99%

Crystal structures and thermodynamic properties on phase change materials n-CnH2n+1NH3·H2PO4(s) (n=8, 9 and 10)

Zhang¹,

Di²,

Tan³

et al. 2012

Solar Energy Materials and Solar Cells

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Synthesis and thermal energy storage properties of ethylene dilauroyl, dimyristoyl, and dipalmitoyl amides as novel solid–liquid phase change materials

Cited by 29 publications

References 23 publications

Carbon-Filled Organic Phase-Change Materials for Thermal Energy Storage: A Review

Carbon-Filled Organic Phase-Change Materials for Thermal Energy Storage: A Review

Lipid‐derived monoamide as phase change energy storage materials

Crystal structures and thermodynamic properties on phase change materials n-CnH2n+1NH3·H2PO4(s) (n=8, 9 and 10)

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