Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Heat exchanger arrangement and duty

Status
Not open for further replies.

takiyasamsama

Chemical
Joined
Feb 10, 2015
Messages
108
Location
MY
Dear Forumners,

I'm quite new when it comes to HE and I am learning to understand arrangement and duty mean on the data sheet. Basically in the data sheet I was referring to stated that the HE shall be 3 x 50% in parallel. What this mean actually?

Based on my understanding this refers to the HE are design in parallel where each unit working at 50% heat duty. Meaning all three units are working with 50% of its design duty isn't it?

Thank you in advance for your gracious helps [bigsmile]
 
Or 2 x 50% is working, while 1 x 50% is clean, ready-to-go, but in stand-by mode. Then a dirty/broken HE can be taken off-line and cleaned/repaired without affecting the entire unit.

Good luck,
Latexman

To a ChE, the glass is always full - 1/2 air and 1/2 water.
 
You also see this in pump systems, 3 x 50% means that two are used for service and one is being fixed/cleaned/standby.
Sometimes facilities have a planed rotation, so the 'out of service' unit changes regularly.
Some plants always clean and test a unit when it is taken out of service, and then it is left clean and dry ready to be used when one of the others becomes too dirty or fails.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top