Fuel temperature coefficient of reactivity is the change in reactivity of the nuclear fuel per degree change in the fuel temperature. The coefficient...
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including electric and magnetic properties of materials as well as reactivity. The temperature coefficient of most of the reactions lies between 2 and 3. Most...
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prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases, the reactivity decreases—so it is highly...
55 KB (6,900 words) - 10:02, 18 July 2025
the void coefficient (more properly called void coefficient of reactivity) is a number that can be used to estimate how much the reactivity of a nuclear...
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Uranium zirconium hydride (category Nuclear fuels)
prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases, the reactivity rapidly decreases...
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on Doppler broadening or on negative void coefficient from a moderator. However, thermal expansion of the fuel itself can provide quick negative feedback...
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RBMK (section High positive void coefficient)
positive void coefficient was reduced from +4.5 β to +0.7 β, decreasing the likelihood of further reactivity accidents, at the cost of higher enrichment...
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Pressurized water reactor (section Fuel)
positive thermal coefficient of reactivity. This means reactivity and heat generation increases when coolant and fuel temperatures increase, which makes...
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phenomenon driving the fuel temperature coefficient of reactivity also been used as a design consideration in high-temperature nuclear reactors. In principle...
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hydride (UZrH) fuel, which has a large, prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases...
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Critical mass (section Amount of fuel)
negative temperature coefficient of reactivity to indicate that its reactivity decreases when its temperature increases. Using such a material as fuel means...
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as for stationary fuel-cell applications and portable fuel-cell applications. Their distinguishing features include lower temperature/pressure ranges (50...
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models. Negative-temperature-coefficient (NTC) thermistors have less resistance at higher temperatures, while positive-temperature-coefficient (PTC) thermistors...
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segregation and sintering of solid materials. The Tammann temperature is important for reactive compounds like explosives and fuel oxiders, such as potassium...
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Thorium (redirect from History of thorium)
thermal conductivity, and a lower coefficient of thermal expansion. It is more stable chemically than the now-common fuel uranium dioxide, because the latter...
145 KB (16,401 words) - 20:37, 26 July 2025
operating temperature which results in longer start-up times and mechanical and chemical compatibility issues. Solid oxide fuel cells are a class of fuel cells...
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Nuclear fusion (category Pages that use a deprecated format of the chem tags)
Glass "Temperature Measurements Of An Implosion Focus Archived 2012-07-20 at the Wayback Machine" Ion Flow and Fusion Reactivity, Characterization of a Spherically...
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double-layered PTFE-coated fiberglass dome. Because of its extreme non-reactivity and high temperature rating, PTFE is often used as the liner in hose assemblies...
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Light-water reactor (category Wikipedia articles in need of updating from July 2015)
property, known as the negative temperature coefficient of reactivity, makes PWRs very stable. In event of a loss-of-coolant accident, the moderator is...
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Calibration of shim rod vs. regulating rod Effect of fuel flow on reactivity Low-power measurement of reactor temperature coefficient Adjustment of chamber...
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Nuclear chain reaction (redirect from Reactivity (nuclear))
calculate or use practically. Instead, a system's reactivity is quantified instead. The reactivity of a nuclear system is qualitatively described as the...
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Nuclear meltdown (redirect from Fuel meltdown)
lost, but moderation continues. This is termed a positive void coefficient of reactivity. The RBMK tends towards dangerous power fluctuations. Control...
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to the designers, the reactor will have a "large negative temperature reactivity coefficient", lacks pumps and valves, uses heat pipes for heat removal...
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Molten-salt reactor (redirect from Fluoride high-temperature reactor)
temperature coefficient of reactivity and a large allowable temperature rise to prevent criticality accidents. For designs with the fuel in the salt,...
82 KB (9,283 words) - 19:48, 15 July 2025
CANDU derived fuel bundles, the reactor design has a slightly positive Void coefficient of reactivity, the Argentina designed CARA fuel bundles used in...
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not display the negative temperature coefficient resistance property of pure silicon carbide. The metal-like conductance of ZrB2 allows for its conductivity...
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Gas-cooled reactor (redirect from Prismatic fuel reactor)
capable in principle of using unenriched fuel but require online refueling to be viable power reactors. No void coefficient of reactivity as the coolant is...
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properties i.e. low absorption cross-section, optimal constant reactivity, suitable Doppler coefficient, phase stability, chemical inertness, and compatibility...
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Lithium (redirect from Biological effects of lithium)
element, though it is the least reactive of the alkali metals. Lithium's lower reactivity is due to the proximity of its valence electron to its nucleus...
150 KB (14,658 words) - 20:34, 27 July 2025
Oklo Inc. (category Nuclear power companies of the United States)
possess a number of advantages in terms of its operation and safety. The Aurora has strongly negative reactivity feedback coefficients which emerge from...
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