Tank Reactor

tank reactor

[′taŋk rē¦ak·tər]
A nuclear reactor in which the core is suspended in a closed tank, as distinct from an open-pool reactor.

Tank Reactor


a nuclear reactor whose core is encased in a sturdy vessel (tank). In most cases, the coolant in a tank reactor also acts as the moderator (ordinary or heavy water, or organic liquids). In some reactors different substances are used as coolants and moderators. For example, the EDF tank reactors (France) use carbon dioxide and graphite.

A tank reactor generally consists of a cylindrical vessel with a cover, which contains a removable structure (cage) with the reactor core. The coolant enters the core, which consists of fuel assembly elements, from below. The reactor core contains movable control rods, whose drive mechanisms have hermetically sealed outlets in the top or bottom of the reactor tank. The hot coolant is discharged through outlets in the upper portion of the tank.

Owing to their relative simplicity, compactness, and high-energy flux from the core, tank reactors are extensively used in nonmilitary nuclear power engineering. There are also tank reactors based on fast and thermal neutrons, the latter being the most widespread. A tank reactor with a 1,375-MW output is in operation at the Novovoronezh Atomic Power Plant in the USSR. In this reactor, ordinary water under a pressure of 12.5 meganew-tons per m2 (125 kilograms-force per cm2) serves both as the coolant and moderator. The water in the core is heated in the range of 269°−300°C and flows to the steam generators. Forced circulation of the water is used. In the USA the following tank reactors are in operation at atomic power plants: pressurized-water reactors (Shippingport, Yankee) and boiling-water reactors (Dresden, Oyster Creek). Tank reactors with graphite moderators and gas coolants are widely used in Great Britain (Calder Hall, Hinkley Point).


References in periodicals archive ?
Pall has introduced the Allegro STR 1000 single-use, 1000 L stirred tank reactor to provide scalable cell culture performance.
A common type of reactor is known as a continuous stirred tank reactor (CSTR) [1], [2].
For simulation purposes, we would consider the mixer is an ideal continuous stirred tank reactor CSTR.
Wik, Tank reactor temperature control using quantitative feedback theory, Proc.
Finally, the proposed MPC is proved in the continuous stirred tank reactor (CSTR), Benchmark presented in en (Henson & Seborg, 1990).
The reactor type used is Continuous Stirred Tank Reactor abbreviated as C.
The experimental works were carried out in a 2L double-jacketed stirred tank reactor with water bath.
Batch and continuous polymerizations were carried out in a one gallon mixed tank reactor.
As an example of such models, we take the Stirred Tank Reactor shown in Figure 1.
Anaerobic/aerobic treatment of municipal landfill leachate in sequential two-stage up-flow anaerobic sludge blanket reactor (UASB)/completely stirred tank reactor (CSTR) systems.
To demonstrate presented method, we used a catalytic continuous stirred tank reactor with chemical reaction of reactants the A and B with production of the single P product (Brengel & Seider, 1989):
Another example of a bioreactor type is one that is equipped with a rotating impeller, called a continuous stirred tank reactor, designed to achieve quick and good mixing of the solution it contains.