Medium- and high-temperature latent heat thermal energy storage: Material database, system review, and corrosivity assessment

Abstract

Summary Latent heat thermal energy storage refers to the storage and recovery of the latent heat during the melting/solidification process of a phase change material (PCM). Among various PCMs, medium‐ and high‐temperature candidates are attractive due to their high energy storage densities and the potentials in achieving high round trip efficiency. Although a few review studies on high‐temperature PCMs have emerged in the past few years, the quantity, completeness, and accuracy of the presented data are relatively poor. Also, an efficient indexing methodology for retrieving useful PCM data is missing in the open literature. In this article, we created an up‐to‐date PCM database following a holistic review of the PCMs in medium‐ and high‐temperature applications over a temperature range of 100°C to 1680°C. Such effort then allows us to develop an accurate indexing tool for the fast selection of suitable PCM candidates and extraction of the related property data. More specifically, the created PCM database covers 496 entries of PCM materials, which are extracted from the scattered research works published during the year 1956 to 2017. The collected information includes both the basic thermo‐physical properties of PCMs (eg, melting temperature, heat of fusion, and thermal conductivity) and crucial design factors during construction and engineering phases (eg, energy storage density, volume expansion, liquid/solid densities, and cost). The reviewed PCMs comprise a wide variety of materials, including fluorides, chlorides, hydrates, nitrates, carbonates, metals and alloys, and other uncommon compounds and salts. In addition, the current work presents a brief review on high‐temperature latent heat thermal energy storage systems categorized into metallic and non‐metallic systems. The corrosivity and stability of PCMs, which are commonly ignored in previous studies, are also examined.

A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications

“…Inorganic PCMs mainly consist of salt hydrates, molten salts, metals or other elementals, and compounds (oxides, hydroxides, carbonates, halides etc.). Prospective readers interested in a more detailed analysis of various PCMs are directed towards some comprehensive reviews on this topic [ 6 , 7 , 8 , 9 , 10 , 11 ]. It is also worth mentioning that PCMs can be used for other applications except heat storage, such as electronic and plasmonic devices [ 12 , 13 , 14 ].…”

Energy and Exergy Analyses of a Solar-based Multi-generation Energy Plant Integrated with Heat Recovery System and Thermal Energy Storage

“…Input data and assumptions for the base case study are listed in Table 1 [34,[48][49][50][51][52]. Pumps isentropic efficiency (%) 80…”

Evolution of the Study of Phase Diagram of Binary and Ternary Mixtures Involving Fatty Acid Esters

“…A recent overview on the state-of-the-art of TES, especially LTES and PCM, is found in the works of Jouhara et al [ 3 ] and Elias et al [ 4 ]. Important innovative milestones are currently being reached towards a better management of concentrated solar power plants through the use of PCM [ 5 , 6 , 7 ]. Other fields are also incorporating the use of these materials and their mixtures with other compounds allowing, for example, the generation of new composite materials [ 8 , 9 , 10 ] or improving the thermal performance of buildings [ 11 , 12 , 13 ].…”