Kumar, Sumit and Bonk, Alexander and Kranzmann, Axel and Bauer, Thomas and Swaminathan, Srinivasan (2023) Solar Salt corrosion : Oxide ions and Impact on corrosion. High Temperature Corrosion and Oxidation 2023 Workshop, 2023-09-25 - 2023-09-29, Marktheidenfeld/Germany.
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Abstract
This study investigates the corrosion behavior of SS316L steel in Thermal Energy Storage (TES) systems using molten Solar Salt as a storage medium and heat transfer fluid. The focus is on the influence of oxide ion concentrations in the salt, particularly Na2O impurities, on corrosion rates. The research reveals a significant correlation between increasing Na2O concentrations and higher corrosion rates, indicating the critical role of oxide ions in corrosion. The study employed a systematic approach, including weight change measurements, SEM-EDX analysis, and ion chromatography, to assess the corrosion impact. The findings have important implications for estimating the durability of metal components in TES systems, Concentrated Solar Power plants, Carnot Batteries, and industrial process heating applications. The presented data supports the understanding that oxide ion concentrations in molten nitrate salts play a crucial role in corrosion mechanisms, contributing to advancements in renewable energy storage technologies.
Item URL in elib: | https://elib.dlr.de/202194/ | ||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Lecture) | ||||||||||||||||||||||||
Title: | Solar Salt corrosion : Oxide ions and Impact on corrosion | ||||||||||||||||||||||||
Authors: |
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Date: | 2023 | ||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | Thermal Energy Storage Solar Salt Molten salt corrosion Na2O impurities Corrosion rate SS316L steel | ||||||||||||||||||||||||
Event Title: | High Temperature Corrosion and Oxidation 2023 Workshop | ||||||||||||||||||||||||
Event Location: | Marktheidenfeld/Germany | ||||||||||||||||||||||||
Event Type: | Workshop | ||||||||||||||||||||||||
Event Start Date: | 25 September 2023 | ||||||||||||||||||||||||
Event End Date: | 29 September 2023 | ||||||||||||||||||||||||
HGF - Research field: | Energy | ||||||||||||||||||||||||
HGF - Program: | Materials and Technologies for the Energy Transition | ||||||||||||||||||||||||
HGF - Program Themes: | High-Temperature Thermal Technologies | ||||||||||||||||||||||||
DLR - Research area: | Energy | ||||||||||||||||||||||||
DLR - Program: | E SP - Energy Storage | ||||||||||||||||||||||||
DLR - Research theme (Project): | E - Thermochemical Processes | ||||||||||||||||||||||||
Location: | Stuttgart | ||||||||||||||||||||||||
Institutes and Institutions: | Institute of Engineering Thermodynamics > Thermal Process Technology | ||||||||||||||||||||||||
Deposited By: | Kumar, Sumit | ||||||||||||||||||||||||
Deposited On: | 29 May 2024 14:46 | ||||||||||||||||||||||||
Last Modified: | 12 Jun 2024 13:22 |
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