lead bismuth liquid

Lead-bismuth eutectic - Wikipedia

As compared to sodium-based liquid metal coolants such as liquid sodium or NaK, lead-based coolants have significantly higher boiling points, meaning a reactor can be operated without risk of coolant boiling at much higher temperatures. This improves thermal efficiency and could potentially allow hydrogen production through thermochemical processes. Lead and LBE also do not react readily with water or air, in contrast to sodium and NaK which ignit

Study on particle deposition performance in liquid lead-bismuth ...

2023年12月15日  Liquid LBE is selected as the heat transfer medium on the tube-side, which refers to 44 %–45 % mass fraction for lead and 55 %–56 % mass fraction for

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Lead-bismuth liquid metal: Lubrication behaviors - ScienceDirect

2019年7月15日  Highlights • The high-temperature lubricity of Lead-bismuth liquid metal (LBE) for the nuclear coolant was studied. • LBE presents an outstanding lubricity for the

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Numerical study on the heat transfer characteristics of a

2023年11月1日  High-efficiency microchannel heat exchanger (MCHE) may be an ideal choice for the intermediate heat exchanger (IHX) in liquid lead–bismuth fast reactors. To prevent the channels of MCHE from being blocked by liquid LBE, a new structure of MCHE is proposed, in which the liquid LBE flow channel has a large equivalent diameter and

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Study on particle deposition performance in liquid lead-bismuth ...

2023年12月15日  Liquid LBE is selected as the heat transfer medium on the tube-side, which refers to 44 %–45 % mass fraction for lead and 55 %–56 % mass fraction for bismuth. The melting point of LBE is lower than lead, approximately 125 °C [ 39 ].

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Lead-bismuth liquid metal: Lubrication behaviors - ScienceDirect

2019年7月15日  Lead-bismuth eutectic liquid metal (LBE) is the primary coolant for the advanced liquid-metal nuclear reactor, and clarification of its lubrication behavior and mechanism at elevated temperature is of importance. In this paper, a self-mated high-temperature steel sliding-pair and a pin-on-disc configuration are selected to evaluate the ...

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Fe-based amorphous coating prepared using high-velocity

2022年10月6日  The Fe49.7Cr18Mn1.9Mo7.4W1.6B15.2C3.8Si2 amorphous coating was deposited on T91 steel substrate by using the high-velocity oxygen fuel (HVOF) spray technique to enhance the corrosion resistance of T91 stainless steel in liquid lead-bismuth eutectic (LBE). The corrosion behavior of the T91 steel and coating exposed to oxygen

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A Review of Corrosion Behavior of Structural Steel in Liquid Lead ...

2023年6月19日  Liquid lead–bismuth eutectic alloy is one of the candidate coolants for fourth-generation nuclear power systems because of its good physical and chemical properties, neutron economic performance, and safety. However, the compatibility between the coolant and structural steel is still the main factor restricting its large-scale industrial

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[PDF] Experimental study on fragmentation behaviors of molten

2015年12月1日  Experimental investigation on the interaction characteristics of lead‑bismuth liquid metal and water. ... The plunging water jet behavior into a pool of a molten lead-bismuth alloy is experimentally investigated. The mixing and interactions of fluids were detected by measuring the fluid temperature as Expand. 34. PDF.

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Heat transfer performance of liquid lead–bismuth eutectic and ...

2023年1月25日  1. Introduction. The lead–bismuth eutectic (LBE), which is a eutectic alloy composed of 44.5% lead and 55.5% bismuth, [1] does not readily evaporate and is physically and chemically stable in both high-temperature and high-radiation environments. As a result, it has become the preferred first circuit coolant for small modular reactors

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Make Your Desoldering Easier By Minding Your Own Bismuth

2021年6月2日  For example 90% tin – 10% bismuth will not have any liquid component below 200C. It’s similar with lead-bismuth. The ternary phase diagrams I can find are all liquidus projection, so that ...

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Performance of the new ferritic/martensitic steel SIMP against liquid ...

2022年10月11日  The degradation of structural materials caused by the corrosion of liquid lead‐bismuth eutectic (LBE), the coolant of lead‐cooled fast reactors (LFRs), has become one of the limiting factors for the development of LFRs. In this study, LFR structural candidates SIMP and T91 ferritic/martensitic steels and 316L austenitic stainless steel

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Analysis of lubrication performance and flow field for lead-bismuth ...

2023年11月15日  Lead-bismuth bearing performance and dynamic properties are crucial for ensuring the steady operation of lead-bismuth liquid metal pumps since they are one of the primary supporting elements in the lead-bismuth cold fast reactor system. To study and analyze the lubrication performance of lead-bismuth bearings as well as the influence of

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Bismuth - Element information, properties and uses Periodic Table

The temperature at which the solid–liquid phase change occurs. Boiling point The temperature at which the liquid–gas phase change occurs. ... rose too high and a classic prank invented in Victorian times was to cast spoons from an alloy containing 8 parts bismuth, 5 parts lead and 3 parts tin. Its melting point is low enough for the spoon ...

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Handbook on Lead-bismuth Eutectic Alloy and Lead Properties,

Heavy liquid metals such as lead or lead-bismuth have been proposed and investigated as coolants for fast reactors since the 1950s. More recently, there has been renewed interest worldwide in the use of these materials to support the development of systems for the transmutation of radioactive waste. Heavy liquid metals are also under evaluation ...

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Corrosion in Heavy Liquid Metals for Energy Systems JOM

2021年10月22日  Heavy liquid metals (HLMs) such as molten Pb and lead bismuth eutectic (LBE) are being proposed as heat transport fluids in advanced nuclear and concentrated solar power systems because of their low vapor pressure, excellent thermophysical (high boiling point and thermal conductivity) and neutronic properties, and

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Sliding bearings with lead-bismuth liquid metal lubrication

2022年12月1日  Lead-bismuth eutectic liquid metal (LBE)is the primary coolant for the advanced liquid-metal nuclear reactor, and clarification of its lubrication behavior and mechanism at elevated temperature is ...

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