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- Void_coefficient abstract "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 (typically steam bubbles) form in the reactor moderator or coolant. Reactivity, in the nuclear engineering sense (not to be confused with chemical reactivity), measures the degree of change in neutron multiplication in a reactor core. Reactivity is directly related to the tendency of the reactor core to change power level: if reactivity is positive, the core power tends to increase; if it is negative, the core power tends to decrease; if it is zero, the core power tends to remain stable. The reactivity of the core may be adjusted by the reactor control system in order to obtain a desired power level change (or to keep the same power level). It can be compared to the reaction of an automobile as conditions around it change (for instance, wind intensity and direction or road slope), and therefore the corresponding counter-measure that the driver applies to maintain road speed or execute a desired manoeuvre.Reactivity is affected by many factors, including coolant/moderator temperature and density, fuel temperature and density, and structural temperature and density. Net reactivity in a reactor is the sum total of all these contributions, of which the void coefficient is but one. Reactors in which either the moderator or the coolant is a liquid typically will have a void coefficient value that is either negative (if the reactor is under-moderated) or positive (if the reactor is over-moderated). Reactors in which neither the moderator nor the coolant is a liquid (e.g., a graphite-moderated, gas-cooled reactor) will have a void coefficient value equal to zero.".
- Void_coefficient wikiPageExternalLink s.
- Void_coefficient wikiPageExternalLink t.
- Void_coefficient wikiPageExternalLink 19910101.pdf.
- Void_coefficient wikiPageID "1211053".
- Void_coefficient wikiPageRevisionID "595504379".
- Void_coefficient hasPhotoCollection Void_coefficient.
- Void_coefficient subject Category:Nuclear_safety.
- Void_coefficient comment "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 (typically steam bubbles) form in the reactor moderator or coolant. Reactivity, in the nuclear engineering sense (not to be confused with chemical reactivity), measures the degree of change in neutron multiplication in a reactor core.".
- Void_coefficient label "Coefficient modérateur".
- Void_coefficient label "Coefficiente di vuoto".
- Void_coefficient label "Dampfblasenkoeffizient".
- Void_coefficient label "Void coefficient".
- Void_coefficient label "Współczynnik reaktywności przestrzeni parowych".
- Void_coefficient label "Паровой коэффициент реактивности".
- Void_coefficient label "معامل الفجوات".
- Void_coefficient label "反応度 (原子力)".
- Void_coefficient sameAs Dampfblasenkoeffizient.
- Void_coefficient sameAs Coefficient_modérateur.
- Void_coefficient sameAs Coefficiente_di_vuoto.
- Void_coefficient sameAs 反応度_(原子力).
- Void_coefficient sameAs Współczynnik_reaktywności_przestrzeni_parowych.
- Void_coefficient sameAs m.04hmcc.
- Void_coefficient sameAs Q1158767.
- Void_coefficient sameAs Q1158767.
- Void_coefficient wasDerivedFrom Void_coefficient?oldid=595504379.
- Void_coefficient isPrimaryTopicOf Void_coefficient.