- void coefficient
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коэффициент пустотности
Англо-русский словарь технических терминов. 2005.
void coefficient
Смотреть что такое "void coefficient" в других словарях:
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
Void — may refer to:In fiction: * Void (comics), character from WildC.A.T.S. * Void ( Mortal Kombat ), a fictional location or realm in Mortal Kombat * Void , one of the minor villains in Sonic the Hedgehog * Void 1.1, a science fiction wargame created… … Wikipedia
coefficient of compressibility — Compressibility is the aptitude of the soil to be deformed. It is expressed by means of a coefficient which is the ratio between a void ratio decrease from e0 to e and an increase in effective stress. The value av = e0–e)p represents the… … Lexicon of Cave and Karst Terminology
coefficient of volume compressibility — The compression of a clay (aquitard) per unit thickness, due to a unit increase of effective stress, in the load range exceeding preconsolidation stress. It is expressed by the equation in which e0 is the initial void ratio. Units are usually… … Lexicon of Cave and Karst Terminology
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
Nuclear meltdown — Three of the reactors at Fukushima I overheated, causing core meltdowns. This was compounded by hydrogen gas explosions and the venting of contaminated steam which released large amounts of radioactive material into the air.[1] … Wikipedia
Chernobyl disaster — This article is about the 1986 nuclear plant accident in Ukraine. For other uses, see Chernobyl (disambiguation). Chernobyl disaster … Wikipedia
RBMK — is an acronym for the Russian reaktor bolshoy moshchnosti kanalniy ( ru. Реактор Большой Мощности Канальный) which means High Power Channel Type Reactor , and describes a class of graphite moderated nuclear power reactor which was built in the… … 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
Loss of coolant accident — A loss of coolant accident (LOCA) is a mode of failure for a nuclear reactor; if not managed effectively, the results of a LOCA could result in reactor core damage. Each nuclear plant s Emergency Core Cooling System (ECCS) exists specifically to… … Wikipedia
Nuclear chain reaction — A possible nuclear fission chain reaction. 1. A uranium 235 atom absorbs a neutron, and fissions into two new atoms (fission fragments), releasing three new neutrons and a large amount of binding energy. 2. One of those neutrons is absorbed by an … Wikipedia
