Tube Rupture 2

[hnaik]

I have cooling water tube rupture case, and i am not able to find the flow to shell during tube rupture. I tried to find in crane, but it didn;t help me.
Please let me know the way to calculate flow.
Thank you,
Harshal

 

[tkdhwjd]

As pleckner points out, tube rupture is normally a remote scenario because of the reasons BenThayer points out. Therefore, suggest checking the test pressure of shell side to see if it is equal or greater than the tubeside design pressure. If so, then you have a low probability of catastrophic failure of the exchanger shell in the event tube ruptures. But in the end, remote scenario must be considered in the process design.

 

[Latexman]

But in the end, remote scenario must be considered in the process design.

True, because we have limited knowledge, only the OP can rationalize this. We don't know whether the OP's heat exchanger is continuous or batch or whether the CW and process is throttled or not. We also have limited knowledge about the entire process and start-up and shutdown procedures. We also cannot foresee every action an operator may take, regardless of written procedures, if water is detected in the process. It could, unknowingly at the time of troubleshooting, be a ruptured tube in the subject heat exchanger. It would not be unusual to start closing valves around the heat exchanger to see if the issue can be isolated. That is a common troubleshooting technique. A lot of processes can run for some time while individual unit operations are isolated (i.e. intermediate tanks).

Good luck,
Latexman