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Journal ArticleDOI

Phase change materials for smart textiles – An overview

01 Aug 2008-Applied Thermal Engineering (Pergamon)-Vol. 28, Iss: 11, pp 1536-1550
TL;DR: In this paper, a review of the working principle of phase change materials and their applications for smart temperature-regulated textiles is presented, followed by an account of incorporation of PCM in the textile structure are summarized.
About: This article is published in Applied Thermal Engineering.The article was published on 2008-08-01. It has received 982 citations till now.
Citations
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Journal ArticleDOI
TL;DR: In this article, the state of the art of phase change materials for thermal energy storage applications is reviewed and an insight into recent efforts to develop new phase change material with enhanced performance and safety.

1,399 citations

Journal ArticleDOI
TL;DR: In this review different concepts for the creation of multifunctionality are derived from the various polymer network architectures of thermally-induced SMP, such as nanocomposites, as well as one-component polymer systems, in which independent functions are integrated.
Abstract: The thermally-induced shape-memory effect (SME) is the capability of a material to change its shape in a predefined way in response to heat. In shape-memory polymers (SMP) this shape change is the entropy-driven recovery of a mechanical deformation, which was obtained before by application of external stress and was temporarily fixed by formation of physical crosslinks. The high technological significance of SMP becomes apparent in many established products (e.g., packaging materials, assembling devices, textiles, and membranes) and the broad SMP development activities in the field of biomedical as well as aerospace applications (e.g., medical devices or morphing structures for aerospace vehicles). Inspired by the complex and diverse requirements of these applications fundamental research is aiming at multifunctional SMP, in which SME is combined with additional functions and is proceeding rapidly. In this review different concepts for the creation of multifunctionality are derived from the various polymer network architectures of thermally-induced SMP. Multimaterial systems, such as nanocomposites, are described as well as one-component polymer systems, in which independent functions are integrated. Future challenges will be to transfer the concept of multifunctionality to other emerging shape-memory technologies like light-sensitive SMP, reversible shape changing effects or triple-shape polymers.

824 citations

Journal ArticleDOI
TL;DR: In this paper, the authors explore how and where phase change materials (PCMs) are used in passive latent heat thermal energy storage (LHTES) systems, and present an overview of how these construction solutions are related to building's energy performance.

817 citations

Journal ArticleDOI
TL;DR: In this article, the authors focus on the application of various phase change materials based on their thermophysical properties, in particular, the melting point, thermal energy storage density and thermal conductivity of the organic, inorganic and eutectic phases.

813 citations

Journal ArticleDOI
TL;DR: A progress report on the use of galvanic replacement for generating complex hollow nanostructures with tunable and well-controlled properties and its capability to fabricate nanomaterials with complex structures and/or compositions by coupling with other processes such as co-reduction and the Kirkendall effect.
Abstract: This article provides a progress report on the use of galvanic replacement for generating complex hollow nanostructures with tunable and well-controlled properties. We begin with a brief account of the mechanistic understanding of galvanic replacement, specifically focused on its ability to engineer the properties of metal nanostructures in terms of size, composition, structure, shape, and morphology. We then discuss a number of important concepts involved in galvanic replacement, including the facet selectivity involved in the dissolution and deposition of metals, the impacts of alloying and dealloying on the structure and morphology of the final products, and methods for promoting or preventing a galvanic replacement reaction. We also illustrate how the capability of galvanic replacement can be enhanced to fabricate nanomaterials with complex structures and/or compositions by coupling with other processes such as co-reduction and the Kirkendall effect. Finally, we highlight the use of such novel metal nanostructures fabricated via galvanic replacement for applications ranging from catalysis to plasmonics and biomedical research, and conclude with remarks on prospective future directions.

803 citations

References
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Journal ArticleDOI
TL;DR: In this paper, a review of the phase change materials (PCM) and their application in energy storage is presented, where the main advantages of encapsulation are providing large heat transfer area, reduction of the PCMs reactivity towards the outside environment and controlling the changes in volume of the storage materials as phase change occurs.

2,636 citations


"Phase change materials for smart te..." refers background in this paper

  • ...When the temperature falls, the PCM microcapsules release this stored heat energy and consequently PCM solidify [10]....

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  • ...009 affin-PCM, for an example, absorbs approximately 200 kJ/ kg of heat if it undergoes a melting process [10]....

    [...]

  • ...Commercial paraffin waxes are cheap with moderate thermal storage densities ( 200 kJ/ kg or 150 MJ/m(3)) and a wide range of melting temperatures [10]....

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  • ...Unlike the sensible heat storage method, the latent heat storage method provides much higher storage density, with a smaller temperature difference between storing and releasing heat [10]....

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Journal ArticleDOI
TL;DR: In this article, the development of available thermal energy storage (TES) technologies and their individual pros and cons for space and water heating applications are reviewed and compared for low temperature applications, where water is used as a storage medium.

1,156 citations

Journal ArticleDOI
TL;DR: In this paper, the authors determined the proper amount of paraffin ( n -docosane) absorbed into expanded graphite (EG) to obtain form-stable composite as phase change material (PCM), examination of the influence of EG addition on the thermal conductivity using transient hot-wire method and investigation of latent heat thermal energy storage (LHTES) characteristics of Paraffin such as melting time, melting temperature and latent heat capacity using differential scanning calorimetry (DSC) technique.

793 citations


"Phase change materials for smart te..." refers background in this paper

  • ...9986) occurred between thermal conductivity and mass fraction of EG, indicating a strong association between the two attributes [5]....

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  • ...Phase-change thermal energy storage systems offer other advantages, such as a small temperature difference between storage and retrieval cycles, small unit sizes and low weight per unit storage capacity [4,5]....

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Journal ArticleDOI
TL;DR: In this article, a detailed parametric investigation is performed for melting in spherical shells of 40, 60, and 80mm in diameter, when the wall-temperature is uniform and varies from 2 ÂC to 20 Â C above the mean melting temperature of the PCM.

400 citations


"Phase change materials for smart te..." refers methods in this paper

  • ...The numerical approach makes it possible to calculate the processes that occur inside the solid PCM (conduction), liquid PCM (convection), and air (convection) simultaneously, and to account for the phase-change, moving boundary due to the variation of the PCM volume, and solid phase motion in the melt [41]....

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Journal ArticleDOI
01 Dec 2005-Carbon
TL;DR: In this paper, the thermal performance of nanocomposite carbon nanofibers filled paraffin wax was studied experimentally and analytically and the transient temperature response of made nanocomposition was measured during its solidification process and the cooling rate was predicted.

386 citations


"Phase change materials for smart te..." refers background in this paper

  • ...The thermal properties of the modified PCM could enhanced significantly by dispersing CNFs into it [37]....

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  • ...The thermal conductivities of carbon nano-fibers are considerably high and their densities are less that 2260 kg/m(3), which is lower than those of metals that are usually used as additives [37]....

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