Abstract
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.
Highlights
New renewable energy such as solar, marine, and wind energy has stochastic volatility and intermittent and places high demands on energy storage technology
Using the latent heat capacity of phase-change materials (PCMs) as a heat storage system is an effective means of storing heat
Extensive research has been conducted on this topic and several strategies have been considered to overcome the problems of using PCMs and to broaden the application prospects of this technology
Summary
New renewable energy such as solar, marine, and wind energy has stochastic volatility and intermittent and places high demands on energy storage technology. Paraffin is advantageous for thermal energy storage (TES) applications, as it can be used at low-to-medium temperatures. To improve the thermal conductivity of low-thermal conductivity paraffin (or other PCMs), an effective method is to add highly conductive particles [7]. Composite PCMs that incorporate thermally conductive fillers are continually being researched and developed [8,9]. The effects of the addition of various carbon fillers on the thermal conductivity and energy storage properties of organic PCMs have been widely reported, but few studies have directly compared their performance. This study will, help the reader to PCMs that incorporate carbon of materials application of TES. This study will, help the reader to understand improve the current technologies, potential problems, and future developmental direction of this research
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