About contol rods used in boiling water reactor

AI Thread Summary
Cross-shaped control rods are utilized in boiling water reactors to effectively navigate through the gaps between fuel assembly channels. Their cruciform design allows for optimal placement and control of neutron absorption. Additionally, a velocity damper is integrated at the lower end of the control rod to reduce the dropping speed during emergencies. This design enhances safety and operational efficiency in reactor management. Understanding these features is crucial for comprehending the functionality of boiling water reactors.
kumar1405
Messages
6
Reaction score
1
why Cross shaped contol rods used in boiling water reactor?
thanks in adavance for answer .
 
Engineering news on Phys.org
kumar1405 said:
why Cross shaped contol rods used in boiling water reactor?
thanks in adavance for answer .

The control rods are composed of blades in a shape of cruciform in order to move through the gaps formed between channels of fuel assemblies.
A velocity damper is also provided at the lower portion
of the control rod
to slow down the dropping velocity in case of a accident.
for details one can visit: http://atominfo.ru/files/fukus/npp2.pdf
 
  • Like
Likes berkeman and kumar1405
thank you for your valuable answer .
 
  • Like
Likes drvrm

Thread 'MCNP6 BURN Card Issue: Zero Burnup for Material in Fuel Assembly'

Hello everyone, I am currently working on a burnup calculation for a fuel assembly with repeated geometric structures using MCNP6. I have defined two materials (Material 1 and Material 2) which are actually the same material but located in different positions. However, after running the calculation with the BURN card, I am encountering an issue where all burnup information（power fraction(Initial input is 1,but output file is 0), burnup, mass, etc.） for Material 2 is zero, while Material 1...
View full post »

Similar threads

Basic understanding of Graphite-Water reactors
Replies
1
Views
2K
Addition of Central Control Rod in Small Modular Reactor Geometry Using Serpent
Replies
0
Views
1K
Exceeding the saturation temperature of coolant on the clad for PWR
Replies
2
Views
2K
New Salt Cooled Nuclear Reactor Approved by NRC
Replies
30
Views
4K
Can Spent Nuclear Fuel Be Used as an Alternate Heat Source?
Replies
10
Views
3K
Computation for nuclear reactor systems
Replies
1
Views
3K
Cylindrical and Symmetrical Nuclear Fusion Reactor
Replies
19
Views
3K
Can Someone Explain How Nuclear Fuel Rods Heat Water in a Reactor?
Replies
10
Views
3K
Can Low Pressure Fission Reactors Improve Efficiency and Lower Costs?
Replies
21
Views
3K
Reactor Channel Layout: RBMK, PWR, CANDU Comparison
Replies
1
Views
4K

Hot Threads

Recent Insights

Back
Top