Capric–myristic acid/expanded perlite composite as form-stable phase change material for latent heat thermal energy storage

Karaipekli, Ali; Sarı, Ahmet

doi:10.1016/j.renene.2008.02.024

Cited by 278 publications

(87 citation statements)

References 23 publications

(33 reference statements)

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“…Some organic eutectics that have been studied include capric acid/myristic acid (Karaipekli and Sari [57]), lauric acid/stearic acid, myristic acid/palmitic acid and palmitic acid/stearic acid (Sari et al [97]) and capric acid/lauric acid (Shilei et al [107]). The most common inorganic eutectics that have been investigated consist of different salt hydrates.…”

Section: Eutectic Mixturesmentioning

confidence: 99%

Phase change materials and products for building applications: A state-of-the-art review and future research opportunities

Kalnæs

Jelle

2015

Energy and Buildings

463

232

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Phase change materials (PCM) have received considerable attention over the last decade for use in latent heat thermal storage (LHTS) systems. PCMs give the ability to store passive solar and other heat gains as latent heat within a specific temperature range, leading to a reduction of energy usage, an increase in thermal comfort by smoothing out temperature fluctuations throughout the day and a reduction and/or shift in peak loads. The interest around PCMs has been growing significantly over the last decade. Hence, several commercial products have arrived on the market with various areas of use in building applications. This study reviews commercial state-of-the-art products found on the market and show some of the potential areas of use for PCMs in building applications. Examples of how PCMs can be integrated into buildings, and furthermore building materials and projects using PCMs that have already been realised, have also been reviewed. There seems to be a scarcity of data published on actual performance in real life applications so far. However, many laboratory and full scale experiments have shown positive results on energy savings. Furthermore, future research opportunities have been explored and challenges with the technology as of today have been discussed.

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Section: Eutectic Mixturesmentioning

confidence: 99%

Phase change materials and products for building applications: A state-of-the-art review and future research opportunities

Kalnæs

Jelle

2015

Energy and Buildings

463

232

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“…Table 6 lists trends in research on PCM composites, together with the thermophysical properties and production methods of the proposed materials. 47,[93][94][95][96][97][98][99][100][101][102][103][104][105][106][107][108][109] The reported methods for the production of PCM composites can be classified into four types: (1) impregnation/infiltration (with/without vacuum process), (2) dispersion or kneading, (3) compression, and (4) electro-spinning.…”

Section: Pcm Compositesmentioning

confidence: 99%

“…This method can be used to easily produce LES mediums with large thermal conductivity and large density of heat storage by selecting porous materials with large thermal conductivity and large porosity, such as porous graphite materials 93,94) and various porous metals. [95][96][97] For applications in building materials and high-temperature processes, porous ceramics such as expanded perlite 98,99) and vermiculite 100) have also been reported.…”

Section: Pcm Compositesmentioning

confidence: 99%

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Technology of Latent Heat Storage for High Temperature Application: A Review

2010

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Table 2. Thermophysical properties of proposed PCM candidates-sugar alcohol, molten salt, and metallicwith phase-changing point over 100°C.from steelworks 2) has more enthalpy at lower temperature but more exergy at a higher temperature over 100°C. Table 3 lists frequently selected keywords from the collected papers. Papers on LHS and PCM frequently used general keywords such as "phase-change material", "PCM", "thermal energy storage", and "latent heat". Apart from these, interestingly, "solar energy" was also frequently used; these papers dealt with PCMs that can store solar energy through melting for various utilities. Keywords such as "phase-change composites", "thermal conductivity", "shape-stabilized" should be noteworthy in that these are related to general problems encountered during the use of PCMs, that is, capsulation and low thermal conductivity. Recent Advancements in LHS Technology PCM CapsulesGenerally, because LHS mainly utilizes the phase change between solid and liquid, the encapsulation of the PCM is necessary to avoid the leakage of a liquid PCM. In addition, Regin et al. 70) noted the functions and requirements of PCM containment: (i) meeting the requirements of strength, flexibility, corrosion resistance, and thermal stability; (ii) acting as a barrier to protect the PCM from harmful interactions with the environment; (iii) providing a sufficient surface for heat transfer, and (iv) providing structural stability and easy handling. PCM capsules are classified into macroand microcapsules.Macrocapsules are the most conventional PCM capsules, and many papers have reported various shell materials such as metal and plastics, and various shapes such as spherical [71][72][73][74][75] and cylindrical. 72,[76][77][78] In contrast, micro-encapsulation of PCM has recently attracted considerable attention [79][80][81][82][83][84][85] because it reduces the reactivity of the PCMs with the outside environment, increases the heat transfer area of the PCMs, and enables the core material to withstand frequent changes in the volume of the storage material during phase change. Table 4 lists trends in manufacturing methods for PCM capsules. Many papers have reported the production of various microcapsules, and the manufacturing methods, core PCM materials, shell materials, thermophysical properties, and capsule sizes of the same have been studied. Micro-interfacial polymerization, 80) in-situ polycondensation, [81][82][83][84][85] and complex coacervation 79) are the most popular microen- ISIJ International, Vol. 50 (2010), No. 9 79,80) 1232© 2010 ISIJ proposed the encapsulation of spherical metal PCMs such as Cu and Pb with an electroplated Ni layer to recover industrial hightemperature waste heat such as combustion offgas. The PCM spherical capsule with Ni coverage provided hybrid functions of both heat storage and catalysis. Nickel worked well as a catalyst of the gas phase reaction CH 4 ϩH 2 Oϭ 3H 2 ϩCO at 1000°C.In summary, the encapsulation of low-temperature PCMs is a state-of-the-art technology; in p...

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“…Moreover, form stable phase change PCMs are especially interesting due to high latent heat, shape stable and it can be directly used without encapsulation methods [4]. The materials used for fabricating the form stable solid-liquid PCMs are organic compounds such as paraffin [5], fatty acids [6], fatty alcohol [7,8], polyethylene glycol and their mixtures [9,10].…”

Section: Introductionmentioning

confidence: 99%

Physical, Spectroscopic and Thermal Characterization of Biofield treated Myristic acid

Mohan¹,

Branton²,

Nayak³

2015

J Fundam Renewable Energy Appl

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Capric–myristic acid/expanded perlite composite as form-stable phase change material for latent heat thermal energy storage

Cited by 278 publications

References 23 publications

Phase change materials and products for building applications: A state-of-the-art review and future research opportunities

Phase change materials and products for building applications: A state-of-the-art review and future research opportunities

Technology of Latent Heat Storage for High Temperature Application: A Review

Physical, Spectroscopic and Thermal Characterization of Biofield treated Myristic acid

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