Report on thermo-physical properties of binary NaNO3-KNO3 mixtures in a range of 59-61 wt% NaNO3

Kurzfassung

This report investigates the impact of defined compositional changes of a Solar Salt mixture on the thermophysical properties and melting properties for a total of three compositions: the first one being the standard mixture (60-40 wt%), the second with a 1 wt% excess of NaNO3, and one with a 1 wt% excess of KNO3. We study the main thermo-physical properties, which are critical for the design of a CSP plant: the heat capacity, viscosity, thermal conductivity and density, as well as the melting properties.