CHE SIGNIFICA CONTROL ROD IN INGLESE
Barra di comando
Una barra di controllo è una barra utilizzata nei reattori nucleari per controllare il tasso di fissione dell'uranio e del plutonio. Sono fatti di elementi chimici in grado di assorbire molti neutroni senza essersi discioglienti, come il boro, l'argento, l'indio e il cadmio. Poiché questi elementi presentano diverse sezioni di trazione per i neutroni di energie diverse, le composizioni delle aste di controllo devono essere progettate per lo spettro di neutrone del reattore che dovrebbe controllare. I reattori ad acqua leggera ei reattori ad acqua pesante funzionano con neutroni "termici", mentre i reattori di allevamento operano con neutroni "veloci".
definizione di control rod nel dizionario inglese
La definizione di asta di controllo nel dizionario è uno di un numero di aste o tubi contenenti un assorbitore di neutroni, come ad esempio boro, che può essere inserito o estratto dal nucleo di un reattore nucleare al fine di controllarne la velocità di reazione.
PAROLE IN INGLESE ASSOCIATE CON «CONTROL ROD»
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10 LIBRI IN INGLESE ASSOCIATI CON «CONTROL ROD»
Scopri l'uso di
control rod nella seguente selezione bibliografica. Libri associati con
control rod e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Nuclear Engineering Handbook
Control rods are withdrawn adjacent to an inserted fresh fuel assembly to verify
subcriticality and predicted excess reactivity of the fuel. The control rod insertion
rates on scram are sufficient to protect the reactor against damage in all
transients ...
2
Influence of Radiation on Material Properties: 13th ...
REFERENCE: Brumbach, S. B., Collins, P. J., and Oliver, B. M., "Measurements of
10B (n,He) Reaction Rates in a Mockup Control Rod in ZPPR," Influence of
Radiation on Material Properties: 13th International Symposium, ASTM STP 956,
...
F. A. Garner, C. H. Henager, Naohiro Igata,
1987
3
Dynamics and
Control in Nuclear Power Stations
The scram system of all ABB Atom Boiling Hater Reactors is based on control rod
insertion activated by the release of pressurized gas (nitrogen) from a gas tank
into a water tank connected via piping to the control rod housing and thus acting
...
4
When Science Goes Wrong
When it was recovered, the control rod had nothing attached to its top end. In fact,
the very topmost part of the rod had been broken off and was missing. Then
workers found this missing part in the attic above the reactor. Attached to this part
...
5
Organizational Maintenance Manual: Tank, Combat, ...
(2) Remove four socket head screws and lock- washers securing elevating and
traversing control rod levers to override control shafts. Remove elevating control
rod lever and traversing control rod lever from override control shafts (view A).
6
Organizational Maintenance Manual for Carrier, Guided ...
2-1541 a. Adjustment. ( 1 ) Release control rod lock (3) and push in to fully
disengaged position. (2) Loosen two screws (1 and 4) securing two control rod
supports (5) to control rod (6). (3) Position two control rod supports (5) to maintain
1 / 32 ...
7
Dictionary & Thesaurus of Environment, Health & Safety
CONTROL ROD(S) (2556 CONTROL ROD) DA January 3, 1991 BT1 Equipment/
Parts - Nuclear (DOE FRASE Vocabulary) BT2 Equipment BT2 Reactor
Components NT1 Gangs NT1 Raincoats RT Control Rod Drive Assembly RT
Core(s) SO ...
8
Nuclear Reactor Physics
where ac is the control rod absorption cross section and En is the exponential
integral function: E n (g) = ∫ ∞ 1 e−guu−ndu (3.105) The solution to Eq. (3.101)
which satisfies Eqs. (3.102) and (3.103) is αcosh(x/L) φ(x)= S0 a [ 1 − α cosh(a/L)
+ ...
9
Direct Support, General Support, and Depot Maintenance for ...
d. Hold adjusting screw to prevent it from turning, and tighten locknut. 353.
Hydraulic Pump Control Linkago Adjustment (Rofor to Pig. 417) a. Remove cotter
pin and yoke pin securing hydraulic -pump front control rod (K) to hydraulic-pump
...
10
Direct Support, General Support, and Depot Maintenance ...
Handle control rod bent. b. Handle control rod end improperly assembled to
handle control rod. c. Elevation control rod bent. d. Elevation control rod length
improper. a. Traverse control rod bent. b. Traverse control rod length improper. c.
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «CONTROL ROD»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
control rod nel contesto delle seguenti notizie.
Scoropion-like robot set to investigate Fukushima reactors 1:58
After crawling over a slight gap and landing on a metal platform, the robot lifted its tail, as if looking up at the bottom of the control rod drive, ... «NEWS.com.au, lug 15»
Japan readies robot for nuclear plant test
After crawling over a slight gap and landing on a metal platform, the robot lifted its tail, looking up the bottom of the control rod drive, a structure ... «Northwest Arkansas News, lug 15»
FAA Issues Airworthiness Directives for Bombardier, ATR-GIE …
We are issuing this AD to detect and correct failure of an affected control rod, which, under certain circumstances, could result in reduced ... «Targeted News Service, giu 15»
FAA Issues Airworthiness Directives for Boeing, Airbus
This AD was prompted by play found between the Smart Electro Mechanical Actuator (SEMA) and the control rod during installation work on a ... «Targeted News Service, giu 15»
Reactor brought to first criticality after 14-month overhaul
... replacement and upgrade of most sensors used to operate the reactor, and replacement of the control rod drive systems. The overhaul builds ... «Phys.Org, giu 15»
FAA Issues Airworthiness Directives for Boeing, Airbus, Six Other …
... the bearing assembly, inspecting the elevator control rod end bearing retainer/dust seals, and replacing or installing new parts as necessary. «Targeted News Service, giu 15»
Biweekly Notice: Applications and Amendments to Facility Operating …
Description of amendment request: The amendment would revise the Technical Specifications (TS) Section 3.1.4, "Control Rod Scram Times," based on industry ... «Targeted News Service, giu 15»
Reserve gyrocopter crash blamed on corroded part
"Post-accident examination revealed that the flight control rod bearing stud exhibited extensive corrosion, consistent with the crack being ... «NOLA.com, giu 15»
Westinghouse Signs Innovative Control Rod Contract with Long …
The contract encompasses delivery of the control rod design CR 99+ for boiling water reactors (BWRs). CR 99+ is the latest evolutionary design ... «Business Wire, giu 15»
Three Mile Island restarts after repairs made
The plant was taken off-line for electrical repairs to a control rod drive ... And on May 6, when staff shut down the reactor to fix the control rod, ... «PennLive.com, mag 15»