SALT MIXTURE

The present invention relates to a mixture of inorganic nitrate salts comprising sodium nitrate and potassium nitrate in certain proportions which can be used both for the storage of thermal energy and as heat transfer fluid, for example within concentrated solar power (CSP) plants. Preferably the p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HEILMANN, PASCAL, DE WISPELAERE, STEVEN, ROOVERS, EDWIN, ÜBLER, MATTHIAS
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	ADHESIVES BLASTING CHEMISTRY DYES HEATING LIGHTING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES RANGES SOLAR HEAT COLLECTORS SOLAR HEAT SYSTEMS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a mixture of inorganic nitrate salts comprising sodium nitrate and potassium nitrate in certain proportions which can be used both for the storage of thermal energy and as heat transfer fluid, for example within concentrated solar power (CSP) plants. Preferably the present invention may be used in thermodynamic solar systems with point-focusing, receiver-type power towers using heliostat mirror geometries on-ground. The present invention may furthermore be used as heat transfer fluid in a number of applications for industrial processes involving heat exchanges in a wide range of temperatures. In accordance with the invention there is provided an anhydrous, binary salt mixture, comprising potassium nitrate KNO 3 and sodium nitrate NaNO 3 wherein the KNO 3 content ranges from 60% by weight to 75% by weight, preferably from 63% by weight to 70% by weight and more preferably from 65% by weight to 68% by weight.