Study of corrosion by Dynamic Gravimetric Analysis (DGA) methodology. Influence of chloride content in solar salt
Ruiz-Cabañas, F. Javier
Segarra Rubí, Mercè
Fernández Renna, Ana Inés
MetadataShow full item record
When a system for thermal energy storage (TES) is designed, many factors must be considered: storage time, dimensions, material to store heat, etc. Usually, molten salts are selected as TES materials because of their great thermal properties at high temperatures. When the whole TES system is going to be built, the material to be used for containing the thermal storage material becomes an important issue. It must have proper mechanical properties, withstand high temperatures and, above all, resist corrosion due to storage material, being in most of the cases, highly corrosive molten salt mixtures. To determine the corrosion on a metal plate, ASTM Standard-G1-03 procedure is usually applied, in which the corroded metal sample is submitted to several cycles including: attack by a chemical solution, washing, cleaning, drying, and weighing. In order to minimise the handling of the sample, a new methodology (Dynamic Gravimetric Analysis, DGA) has been developed and used to determine the corrosion produced in carbon steel A516Gr70 samples induced by different salt mixtures commonly used as molten salts containing different amounts of chloride, at working temperatures conditions. The results show that the higher is the content of chloride in molten salts the greater is the steel loss produced by corrosion and makes the corrosive kinetics to be highly increased when it is overtaken.
Is part ofSolar Energy Materials and Solar Cells, 2016, vol. 157, p. 526-532
European research projects
The following license files are associated with this item:
Showing items related by title, author, creator and subject.
Materials selection for thermal energy storage systems in parabolic trough collector solar facilities using high chloride content nitrate salts Ruiz-Cabañas, F. Javier; Prieto, Cristina; Madina, Virginia; Fernández Renna, Ana Inés; Cabeza, Luisa F. (Elservier, 2017)The increasing role of concentrated solar power (CSP) within the renewable energy portfolio is attributed to the possibility of integrating thermal energy storage (TES) systems. Then, CSP technology has become one of the ...
Prieto, Cristina; Barreneche Güerisoli, Camila; Martínez, Mònica; Cabeza, Luisa F.; Fernández Renna, Ana Inés (Elsevier, 2018)Thermal energy storage (TES) in molten salts is the storage dominating technology in solar power applications today. In two-tank molten salt storage systems energy density ranges from 30 to 70 kW h/m3 are achievable. The ...
Thermochemical energy storage by consecutive reactions for higher efficient concentrated solar power plants (CSP): Proof of concept Cabeza, Luisa F.; Solé, Aran; Fontanet, Xavier; Barreneche Güerisoli, Camila; Jové, Aleix; Gallas, Manuel; Prieto, Cristina; Fernández Renna, Ana Inés (Elsevier, 2016)Concentrated solar power plants (CSP) combined with thermal energy storage (TES) offers the benefit to provide continuous electricity production by renewable energy feed. There are several TES technologies to be implemented, ...