Abstract:
본 발명은 원자로에 사용되는 여과 배기 계통에 관한 것으로서 여과 배기 계통의 구성물을 보관하는 여과배기용기와;상기 여과배기용기와 원자로 건물과 연결된 입구배관과;입구배관으로 부터 연결되어 여과배기 용기 일부를 채우고 있는 여과용액에 잠겨져 있는 컴바인드 노즐과;상기 컴바인드 노즐로 부터 빠져나와 여과용액과 섞인 크기가 큰 액적 및 에어로졸을 대부분 제거한 후 메틸필터로 안내하는 사이클론 세퍼레이터와;상기 사이클론 분리기의 상단부와 연결되어 잔류 액적과 에어로졸을 걸러내는 메탈필터와; 메탈필터를 거쳐 걸러진 배기가스에서 유기요오드를 제거하는 분자체와; 여과배기용기와 Stack을 연결하는 출구배관을 포함한다.
Abstract:
This filter is of the type comprising channels (24) for circulation of coolant fluid through the filter, at least one channel (24) extending along a channel centerline (A) and comprising an upstream section (30), a downstream section (32) and an intermediate section (34) extending between the upstream section (30) and the downstream section (32) and being enlarged relative to the upstream section (30) and the downstream section (32). According to the invention, it comprises at least one separating member (36) defining inside the intermediate section (34) of the at least one channel (24) an annular passage (38) whose axis is substantially coaxial to the channel centerline (A) in the intermediate section (34). Application to lower nozzles of nuclear fuel assemblies.
Abstract:
Cette grille d'espacement (14) définit une pluralité de cellules (22) de réception de crayons de combustible (6) s'étendant selon une direction longitudinale (L), la grille (14) comprenant des ailettes de mélange (30) de l'écoulement (E) du liquide de refroidissement. Au moins une ailette (30) de mélange comprend au moins une face présentant une pluralité d'irrégularités (32).
Abstract:
The invention relates to a safety system (1) for a nuclear plant comprising a plurality of catalytic recombiner elements (40, 44) that trigger a recombination reaction with oxygen when hydrogen is carried along in a feed gas flow, which system safeguards a reliable removal of the hydrogen from the gas mixture with an especially high degree of operational safety even under comparatively extreme conditions or scenarios of said type. According to the invention, the recombiner elements and/or the flow paths interconnecting two recombiner elements each on the gas side are designed in such a manner that a pressure pulse (40) produced in the gaseous medium by an ignition during the recombination reaction in a first recombiner element (40) triggers a gas displacement process in the feed section of a second, adjacent recombiner element (44), said process having a flow rate of at least 5 m/s.
Abstract:
The present invention relates generally to electrical power generating systems and in particular to such systems which utilise the decay products and characteristics of radioactive substances such as photons from light emitted wave lengths and electrons which may be optimised using specific refraction and magnification techniques and converted into electrical power by specifically adapted photovoltaic cells and nanoparticles. An electrical power generating system comprising: at least one container which, in use, is sealed to the atmosphere to form an inner cavity; a layer of fluorescent material, in electromagnetic communication with the cavity; at least one radioactive substance within the inner cavity; and a plurality of photovoltaic cells positioned in the proximity of said at least one sealed container, whereby electrical power is generated by the plurality of photovoltaic cells.
Abstract:
A high-temperature nuclear reactor, cooled by a liquid fluoride salt, is described. The reactor uses an annular fuel pebble comprised of an inert graphite center kernel, a TRISO fuel particles region, and a graphite outer shell, with an average pebble density lower than the density of the liquid salt so the pebbles float. The pebbles are introduced into a coolant entering the reactor and are carried into the bottom of the reactor core, where they form a pebble bed inside a plurality of vertical channels inside one or more replaceable Pebble Channel Assemblies (PCAs). Pebbles are removed through defueling chutes located at the top of each PCA. Each PCA also includes channels for insertion of neutron control and shutdown elements, and channels for insertion of core flux mapping and other instrumentation.
Abstract:
Bei einem Sicherheitssystem (1) für eine kerntechnische Anlage mit einer Anzahl von katalytischen Rekombinatorelementen, die jeweils bei in einem anströmenden Gasstrom mitgeführtem Wasserstoff eine Rekombinationsreaktion mit Sauerstoff auslösen soll auch unter Zugrundelegung von vergleichsweise extremen Bedingungen oder Szenarien der genannten Art mit besonders hoher betrieblicher Sicherheit eine verlässliche Beseitigung des Wasserstoffs aus dem Gasgemisch gewährleistet sein. Dazu sind erfindungsgemäß die Rekombinatorelemente und/oder die jeweils zwei Rekombinatorelemente gasseitig verbindenden Strömungswege derart ausgestaltet sind, dass ein durch eine Zündung bei der Rekombinationsreaktion in einem ersten Rekombinatorelement im Gasmedium ausgelöster Druckpuls im Anströmbereich eines zweiten, benachbarten Rekombinatorelements einen Gasverschiebevorgang mit einer Strömungsgeschwindigkeit von mindestens 5 m/s auslöst.
Abstract:
The invention provides a method and tool to perform an analysis of CRUD on a nuclear fuel rod. The method recites providing a nuclear fuel rod with a layer of CRUD on an exterior of the fuel rod, scraping the CRUD from the fuel rod with a CRUD scraping tool and collecting CRUD flakes from the CRUD scraping tool. The method also provides for sorting the CRUD flakes into particle fractions, and analyzing the CRUD with a scanning electron microscope, wherein the scraping tool has a blade with a rigidity that is matched to an anticipated CRUD deposit shear strength.