TES-PS10 postmortem tests: Carbon steel corrosion performance exposed to molten salts under relevant operation conditions and lessons learnt for commercial scale-up

Ruiz-Cabañas, F. Javier; Prieto, Cristina; Madina, Virginia; Fernández, A. Inés; Cabeza, Luisa F.

doi:10.1016/j.est.2019.100922

Cited by 7 publications

(5 citation statements)

References 29 publications

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“…Likewise, the CS also experienced a mass decrease, reaching values close to those reported at 500 °C. Similarly, the CS managed to stabilize their mass by 100 h, which is a behavior related to the generation of surface oxides [19][20][21][22][23][24][25][26]. In both temperature tests, CS showed a clear mass increase after 20 h of exposure, caused by the generation of oxides, which (as indicated by the SEM images) are not necessarily aluminum oxides (coating), as coating loss is clearly visible after 30 h.…”

Section: Results and Analysismentioning

confidence: 99%

“…• The aluminum coatings deposited by arc thermal spray on ASTM A53 grade B steel showed good protective behavior against corrosion from molten salts [18][19][20] (Sodium Persulfate+Vanadium Pentoxide) at 500 °C until 30 h because the aluminum layer forms oxides that prevent the substrate from coming into contact with molten salts, thus increasing their life span. • The high porosities exhibited by the aluminum coating deposited by electric arc thermal spray, in addition to the aggressive corrosive environment created at 500 °C and molten salts (Sodium Persulfate+Vanadium Pentoxide),…”

Section: Discussionmentioning

confidence: 99%

“…Subsequently, corrosion tests were performed by covering all samples with a corrosive agent (80% V2O5 and 20% Na2SO4), which is a precursor of Na2OV2O45V2O5 and 5Na2OV2O411V2O5 complex vanadates, [17][18][19][20][21][22]. In addition, they were exposed to 500 °C and 600 °C with extractions (2 test samples) at 1, 5, 10, 20, 50, and 100 h. After each extraction, the samples were weighed to track their mass variation and prepared according to ASTM E3 for their characterization by SEM and EDS.…”

Section: Methodsmentioning

confidence: 99%

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Protection against corrosion by molten salts through aluminum coatings deposited by arc thermal spray on ASTM A53 grade B steel

Pérez-Muñoz

Marulanda-Arévalo

Tristancho-Reyes

2020

DYNA

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ASTM A53 steel samples were coated with aluminium by EATS, they report continuity and adherence. Thermal treatment improved their performance against corrosion, because the aluminium inter-diffusions are produced from coating into substrate and iron from substrate into coating. Samples were subjected to molten salts corrosion (20 % Na2SO4 and 80 % V2O5) at range of (400–600)° C. Samples were characterized by SEM-EDS and the morphology of layers were studied, noting good protection of layer deposited and the degradation of coating happened at above fusion temperatures of salts, besides the corrosion rate increases with temperature and decreases with exposition time.

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Section: Results and Analysismentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Protection against corrosion by molten salts through aluminum coatings deposited by arc thermal spray on ASTM A53 grade B steel

Pérez-Muñoz

Marulanda-Arévalo

Tristancho-Reyes

2020

DYNA

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“…This paper does not aim to do a comprehensive review of this topic since further information is already available in the literature [23][24][25][26][27][28][29][30].…”

Section: Corrosionmentioning

confidence: 99%

Molten Salts Tanks Thermal Energy Storage: Aspects to Consider during Design

Prieto,

Blindu,

Cabeza

et al. 2023

Energies

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Concentrating solar power plants use sensible thermal energy storage, a mature technology based on molten salts, due to the high storage efficiency (up to 99%). Both parabolic trough collectors and the central receiver system for concentrating solar power technologies use molten salts tanks, either in direct storage systems or in indirect ones. But even though this is a mature technology, it still shows challenges in its implementation and operation. This paper underscores the critical importance of stringent design criteria for molten salt tanks in thermal storage technology. Focusing on the potential ramifications of design failures, the study explores various dimensions where an inadequate design can lead to severe consequences, even jeopardizing the viability of the entire technology. Key areas discussed include structural integrity, corrosion, thermal shock, thermal expansions, and others. By elucidating the multifaceted risks associated with design shortcomings, this paper aims to emphasize the necessity of thorough reviews and adherence to robust design principles for ensuring the success, safety, and sustainability of thermal storage technology.

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“…With this approach, the TES plant came into operation in January 2009 and, since then it has successfully accumulated more than 25,000 h of uninterrupted operation, which has enabled attainment of representative results for the technology analysed. Points such as the corrosion of materials [43], analysis of potential leak points, calculation of performance or actual storage efficiency (including a comprehensive assessment of thermal losses), and an analysis of plant operation, were the main parameters analysed at this plant during its years in operation.…”

mentioning

confidence: 99%

The Role of Innovation in Industry Product Deployment: Developing Thermal Energy Storage for Concentrated Solar Power

2020

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Industries with fast-developing technologies and knowledge-intensive business services rely on the development of scientific knowledge for their growth. This is also true in the renewable energy industry such as in concentrating solar power (CSP) plants, which have undergone intense development and expansion in the last two decades. Yet knowledge generation is not sufficient; its dissemination and internalization by the industry is indispensable for new product development. This paper contributes to providing empirical evidence on the known link between knowledge development and firm growth. In 10 years the cost of electricity produced through CSP has decreased five-fold. This decrease has only been possible due to innovation projects developed through a complex network of research and development (R&D) collaborations and intense investment, both public and (to a greater extent) private. The development and construction of pilot plants and demonstration facilities are shown to be key in maturing innovations for commercialization. This is an example of how the private sector is contributing to the decarbonisation of our energy system, contributing to the objectives of climate change mitigation.

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TES-PS10 postmortem tests: Carbon steel corrosion performance exposed to molten salts under relevant operation conditions and lessons learnt for commercial scale-up

Cited by 7 publications

References 29 publications

Protection against corrosion by molten salts through aluminum coatings deposited by arc thermal spray on ASTM A53 grade B steel

Protection against corrosion by molten salts through aluminum coatings deposited by arc thermal spray on ASTM A53 grade B steel

Molten Salts Tanks Thermal Energy Storage: Aspects to Consider during Design

The Role of Innovation in Industry Product Deployment: Developing Thermal Energy Storage for Concentrated Solar Power

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