Industrial waste materials and by-products as thermal energy storage (TES) materials: A review

Abstract

Abstract.A wide variety of potential materials for thermal energy storage (TES) have been identify depending on the implemented TES method, Sensible, latent or thermochemical. In order to improve the efficiency of TES systems more alternatives are continuously being sought. In this regard, this paper presents the review of low cost heat storage materials focused mainly in two objectives: on the one hand, the implementation of improved heat storage devices based on new appropriate materials and, on the other hand, the valorisation of waste industrial materials will have strong environmental, economic and societal benefits such as reducing the landfilled waste amounts, reducing the greenhouse emissions and others. Different industrial and municipal waste materials and by products have been considered as potential TES materials and have been characterized as such. Asbestos containing wastes, fly ashes, by-products from the salt industry and from the metal industry, wastes from recycling steel process and from copper refining process and dross from the aluminium industry, and municipal wastes (glass and nylon) have been considered. This work shows a great revalorization of wastes and by-product opportunity as TES materials, although more studies are needed to achieve industrial deployment of the idea.

Characterization of wastes based on inorganic double salt hydrates as potential thermal energy storage materials

“…The use of by-products or waste materials to store thermal energy is becoming a promising option to be used as TES materials due to their low-cost, close to zero, as was stated by Gutierrez et al [12]. In addition, Chile is an important non-metallic mining producer obtaining more than 60,646 ton of lithium compounds, 1.901.215 ton of potassium compounds, 6,576,960 ton of sodium chloride and 759,384 ton of nitrates among others every year [13].…”

Integration of a thermochemical energy storage system in a Rankine cycle driven by concentrating solar power: Energy and exergy analyses

“…materials being used for CSP applications [Gil 2010;Tiskatine 2017]. Some recent developments are also reported, such as on the use of industrial wastes or by-products [Ortega-Fernández 2015;Gutierrez 2016], chloride salts [Myers 2016], lithium coupled with molten salts [Cabeza 2015], or solid particles [Zhang 2017a;Calderón 2018]. However, their limited energy density (usually between 60 kWhth•m −3 (200 °C-300 °C) for sand, rock and mineral oil, and 150 kWhth•m −3 for cast iron (200 °C-400 °C) [Fernandes 2012]) increases significantly the size of TES systems.…”

Dendritic Nanostructured Waste Copper Wires for High-Energy Alkaline Battery

“…Most of this waste is toxic and contains hazardous and health-threatening chemicals. Proper waste management is the best way to maintain a clean atmosphere by reducing, reusing, and recycling our waste [ 16 , 17 ]. Among the different types of waste, electronic waste (e-waste) is of serious concern to society and arises from discarding electronic equipment after the end of its useful life.…”