temperature coefficient of reactivity

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• Fuel temperature coefficient of reactivity — is the change in reactivity of the nuclear fuel per degree change in the fuel temperature. The coefficient quantifies the amount of neutrons that the nuclear fuel (uranium 238) absorbs from the fission process as the fuel temperature increases.… …   Wikipedia

• Temperature coefficient — The temperature coefficient is the relative change of a physical property when the temperature is changed by 1 K. In the following formula, let R be the physical property to be measured and T be the temperature at which the property is… …   Wikipedia

• Reactivity temperature coefficient — См. Температурный коэффициент реактивности Термины атомной энергетики. Концерн Росэнергоатом, 2010 …   Термины атомной энергетики

• reactivity temperature coefficient — reaktyvumo temperatūros koeficientas statusas T sritis fizika atitikmenys: angl. reactivity temperature coefficient vok. Temperaturkoeffizient der Reaktivität, m rus. температурный коэффициент реактивности, m pranc. coefficient de température de… …   Fizikos terminų žodynas

• Negative temperature coefficient — A negative temperature coefficient (NTC) occurs when the thermal conductivity of a material rises with increasing temperature, typically in a defined temperature range. For most materials, the thermal conductivity will decrease with increasing… …   Wikipedia

• coefficient de température de réactivité — reaktyvumo temperatūros koeficientas statusas T sritis fizika atitikmenys: angl. reactivity temperature coefficient vok. Temperaturkoeffizient der Reaktivität, m rus. температурный коэффициент реактивности, m pranc. coefficient de température de… …   Fizikos terminų žodynas

• Void coefficient — In nuclear engineering, 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 reactor changes as voids (steam bubbles) form in the reactor… …   Wikipedia

• SL-1 — The SL 1, or Stationary Low Power Reactor Number One, was a United States Army experimental nuclear power reactor which underwent a steam explosion and meltdown in January 1961, killing its three operators. The direct cause was the improper… …   Wikipedia

• Pressurized water reactor — (PWRs) (also VVER if of Russian design) are generation II nuclear power reactors that use ordinary water under high pressure (superheated water) as coolant and neutron moderator. The primary coolant loop is kept under high pressure to prevent the …   Wikipedia

• Passive nuclear safety — describes a safety feature of a nuclear reactor that does not require operator action or electronic feedback in order to shut down safely in the event of a particular type of emergency (usually overheating resulting from a loss of coolant or loss …   Wikipedia

• Critical mass — This article is about nuclear fission reactions. For other uses, see Critical mass (disambiguation). As part of a re creation of a 1945 criticality accident, a plutonium pit is surrounded by blocks of neutron reflective tungsten carbide. The… …   Wikipedia