We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Suppressing supercooling in magnesium nitrate hexahydrate and evaluating corrosion of aluminium alloy container for latent heat storage application.
- Authors
Honcova, Pavla; Pilar, Radim; Danielik, Vladimir; Soska, Peter; Sadovska, Galina; Honc, Daniel
- Abstract
The repeating of heating/cooling cycle (75 times) simulating the heat energy storage in magnesium nitrate hexahydrate confirmed supercooling of 27 K, and thus many non-isostructural nucleating agents were tested in concentration of 1 mass% in four charge/discharge cycles. From the whole group, four promising nucleating salts were subjected to detailed study with addition of 0.5, 1, and 2 mass% of nucleating salt. The results show that the addition of Mg(OH), BaO, MgO and Sr(OH)2 suppressed supercooling below 5 K during 50 melting/crystallization cycles. At the similar conditions (temperature range and repeating of heating and cooling), MNH and MNH with 0.5 mass% Mg(OH) or Sr(OH)2 underwent corrosion tests in aluminium alloy tubes to discover applicability of this material for the containers or capsules for heat storage. The long-term contact (>49 days) of aluminium alloy with melted heat storage material for 664 h provided information about suitability of alloy for storing of magnesium nitrate hexahydrate with nucleating agent.
- Subjects
ALUMINUM alloys; CORROSION &; anti-corrosives; MAGNESIUM nitrate; HEAT storage; ENERGY storage; NUCLEATING agents; CRYSTALLIZATION
- Publication
Journal of Thermal Analysis & Calorimetry, 2017, Vol 129, Issue 3, p1573
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-017-6334-0