Latent heat storage system based on sodium hydroxide - formed as slurry or suspension in circulating heat transfer medium of lower density

摘要

The latent heat storage medium (I) consists of Na hydroxide monohydrate or aq. Na hydroxide contg. 64-74(67-71)% NaOH. This is in intimate content with a liq. heat transfer medium (II) which has a density which is at least 10%, pref. more than 20% lower in density than (I). for each 100 pts. wt. of (I), 0.01-2 (0.05-1) pts. wt. of =1 corrosion inhibitor is provided. Pref. (II) has an m.pt. of 0 degrees C (-20 degrees C) and consists of a hydrocarbon or an alkali resistant silicone oil, pref. paraffin oil. Good heat transfer between (I) and (II) is achieved.