Coatings for Heat Storage Reactors with Hygroscopic Salts
| Autor: | Ard-Jan de Jong, Ralph Stevens, Corné Rentrop, Christophe Hoegaerts |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Energy storage
Energy Efficiency Energy / Geological Survey Netherlands Thermal energy storage Electrochemistry 7. Clean energy Corrosion Metal Energy(all) Coatings Heat exchanger Organic chemistry Spectroscopy TS - Technical Sciences Energy Chemistry Metallurgy Thermochemical Electrochemical Impedance Epoxy Dielectric spectroscopy Fluid & Solid Mechanics visual_art visual_art.visual_art_medium Kramers-Kronig transform PID - Process & Instrumentation Development |
| Zdroj: | 3rd International Conference on Solar Heating and Cooling for Buildings and Industry, SHC 2014. 13 October 2014 through 15 October 2014, 70, 182-192 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2015.02.114 |
| Popis: | One of the bottlenecks for realizing a commercial system for thermochemical heat storage using hygroscopic salts is corrosion induced by chemical side-reactions. E.g. when Na2S hydrates are used, we basically deal with corrosion caused by the production of the volatile H2S, threatening metal parts in the reactor and the vacuum system. Based on comparison with similar corrosion problems, epoxy coatings were selected to protect metal parts.Because of the complex geometry of the heat exchanger, e-coating was selected as application method. Applied coatings were tested by electrochemical impedance spectroscopy and by visual inspection. We found that flat areas were well covered, while defects were observed around edges and connections. |
| Databáze: | OpenAIRE |
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