Quantification of the Long-Term Performance of Steels T91 and 316L in Oxygen-Containing Flowing Lead-Bismuth Eutectic at 550°C

Volume 1: Plant Operations, Maintenance, Engineering, Modifications and Life Cycle; Component Reliability and Materials Issues; Next Generation Systems ◽

10.1115/icone17-75770 ◽

2009 ◽

Cited By ~ 3

Author(s):

Carsten Schroer ◽

Juergen Konys

Keyword(s):

Liquid Metal ◽

Dissolved Oxygen ◽

Martensitic Steel ◽

Metal Flow ◽

Liquid Metal Flow ◽

Lead Bismuth Eutectic ◽

Long Term Performance ◽

Term Performance

The long-term performance of ferritic/martensitic steel T91 and austenitic 316L in oxygen-containing flowing lead-bismuth eutectic at 550°C was investigated by exposing the materials for up to 15000 h in the CORRIDA loop. The velocity of the liquid-metal flow was 2 m/s and the concentration of dissolved oxygen averaged 1.6×10−6 mass%. The resulting corrosion processes and products were analyzed and quantified using metallographic methods.

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Quantification of the Long-Term Performance of Steels T91 and 316L in Oxygen-Containing Flowing Lead-Bismuth Eutectic at 550°C

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.4000364 ◽

2010 ◽

Vol 132 (8) ◽

Cited By ~ 39

Author(s):

Carsten Schroer ◽

Juergen Konys

Keyword(s):

Liquid Metal ◽

Dissolved Oxygen ◽

Martensitic Steel ◽

Metal Flow ◽

Liquid Metal Flow ◽

Lead Bismuth Eutectic ◽

Long Term Performance ◽

Term Performance

The long-term performance of ferritic/martensitic steel T91 and austenitic 316L in oxygen-containing flowing lead-bismuth eutectic at 550°C was investigated by exposing the materials for up to 15,000 h in the CORRIDA loop. The velocity of the liquid-metal flow was 2 m/s and the concentration of dissolved oxygen averaged 1.6×10−6 mass %. The resulting corrosion processes and products were analyzed and quantified using metallographic methods.

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Long-Term Performance Estimation of Aquaculture Solar Aeration System for Developing World

Volume 2B: 43rd Design Automation Conference ◽

10.1115/detc2017-68111 ◽

2017 ◽

Author(s):

Sami Yamani Douzi Sorkhabi ◽

Ahmed Mahmoud ◽

Shakya Sur ◽

Elan Pavlov ◽

Amy Bilton

Keyword(s):

Solar Energy ◽

Dissolved Oxygen ◽

Developing World ◽

Performance Estimation ◽

Small Scale ◽

Oxygen Level ◽

Aeration System ◽

Long Term Performance ◽

Term Performance

Over the past several decades, the wild capture fisheries have become unsustainable and the practice of small-scale aquaculture has increased in the rural areas of developing countries. In aquaculture ponds, it is critical to maintain adequate levels of dissolved oxygen to ensure productivity and fish health. To provide adequate dissolved oxygen, aeration systems can be employed. However, the current aeration systems are expensive and require secure access to electricity, putting them out of reach for developing world applications. To address this need, a simple aeration system powered by solar energy, called a Solar Updraft Aerator (SUpA) is proposed. SUpA induces convection in the pond by directing absorbed solar energy to deeper pond layers, increasing the dissolved oxygen level. To be effective, SUpA needs to provide adequate dissolved oxygen even when there are multiple days of low sunlight. This research estimates the long-term performance of SUpA under different weather conditions and for a period of 15 to 18 years. Through this process, the dissolved oxygen level of the aquaculture pond is simulated with and without SUpA system to evaluate the magnitude of the influence. The results indicate that SUpA can significantly reduce the number of hours that the dissolved oxygen level is below the needed threshold.

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