Dannemand, Mark Delgado, Monica Lazaro, Ana Penalosa, Conchita Gundlach, Carsten Trinderup, Camilla Johansen, Jakob Berg Moser, Christoph Schranzhofer, Hermann Furbo, Simon Porosity and density measurements of sodium acetate trihydrate for thermal energy storage Appl. therm. eng. 10.1016/j.applthermaleng.2017.12.052 2018 2018