heat transfer
heat transfer
(OP)
GOOD DAY EVERY BODY.
IN HEAT EXCHANGERS , WHILE IN OPERATION ONE TUBE IS LEAKING . FRIST HOW TO DECT IT AND WHAT TO DO IMMEDITE REMEDY . IT WILL NOT EFFECT OUR OPERATION.
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RE: heat transfer
As forfixing: You can plug each pipe, but that requires a shutdown. Ususally in design a 10% margin is added tomake allowance for plugged tubes.
Best Regards
Morten
RE: heat transfer
As far as what to do, if it was only one tube and isn't affecting your process, you'd do nothing. If it was affecting the process, plugging the leaking tube(s) is common.
RE: heat transfer
How to detect it:
1) Monitoring process conditions, a simple way is to record the:
inlet and outlet temperature of fluid A
inlet and outlet temperature of fluid B
pressure drops across the heat exchanger of both fluids.
Trending these parameters over time, will indicate when abnormal conditions arise. An increase in pressure drop can indicate fauling of tubes, this also will change your temperature perfil of the fluids.
If you are going to put these things in a database, ask your self "who will feed the monster", this is only effective when on a daily basis the data is collected an analyzed, so you can build up a history.
2)Another aproach is Ultrasound diagnostics. We currently use it for steam trap and leak detection, and also for monitoring some watercooled steam condensors. Check out
http://www.enerchecksystems.com/articles.html
3) mass and flow balances, if you put in 200 kg/hr in a heatexchanger and getting out 180 kg/hr, there will be 20 kg/hr more on the other side.
Regards
Steven van Els
SAvanEls@cq-link.sr
RE: heat transfer
RE: heat transfer
Steven van Els
SAvanEls@cq-link.sr
RE: heat transfer
Best Regards
Morten