Читать книгу Energy Storage - Группа авторов - Страница 32

The use of TES provides round the electricity generation. However, as seen from the literature, most of the CSP plants use TES involving molten salts at high temperatures. Such materials are highly corrosive which can damage the components of CSP. It is impossible to prevent corrosion in molten salts altogether. The effect of corrosion may be reduced by using protective coating or corrosion resistant material. To use proper and effective coating, the material must have good adhesion properties with the structural material. The coating should be uniform and less porous (Liu et al., 2014). Another way to supress the effect of corrosion is by application of a cathodic potential (Schwandt and Fray, 2014). Failure due to corrosion is a major issue and such risk of failure of TES system must always be taken into account. Such cost is a function of the costs of HTF and of materials used (Liu et al., 2016).