- #1

- 2

- 0

## Main Question or Discussion Point

I am trying to build a model of CANDU reactor core using a software called DYMOLA.For this purpose,I am trying to figure out a mathematical relation between coolant temperature and Power developed in a reactor.I have the following questions:

1.What is the effect of increasing the neutron flux (hence,increasing the power developed in the core) on the coolant exit temperature.Is there a mathematical relation that relates the temperature of coolant coming out of the reactor to the neutron flux.

2.I read that in a CANDU reactor a decrease in coolant temperature increases the reactivity.

But,consider the following scenario:

Coolant temperature decreases---->>Reactivity increases---->>Power developed in the reactor increases---->>resulting in an increase in coolant temperature---->>which decreases the reactivity!!

When does the cycle stop??

Hope you understood my question

1.What is the effect of increasing the neutron flux (hence,increasing the power developed in the core) on the coolant exit temperature.Is there a mathematical relation that relates the temperature of coolant coming out of the reactor to the neutron flux.

2.I read that in a CANDU reactor a decrease in coolant temperature increases the reactivity.

But,consider the following scenario:

Coolant temperature decreases---->>Reactivity increases---->>Power developed in the reactor increases---->>resulting in an increase in coolant temperature---->>which decreases the reactivity!!

When does the cycle stop??

Hope you understood my question