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!

PIPE COILS

Status
Not open for further replies.

finite

Mechanical
Joined
Sep 21, 1999
Messages
13
Location
QA
I AM LOOKING FOR INFORMATION TO CALCULATE THE PRESSURE DROP ACROS A PIPE COIL.THE TYPE OF COIL I AM REFERING TO IS THE TYPE THAT COULS BE FOUND IN A LIQUIR STILL OR TRACE HEATING FOR A PIPE.

REGARDS

FINITE

 
The pressure loss is basically dependant on the total length of pipe - i.e. the amount of internal surface area providing frictional resistance. In your applications the bend radius is large, so you are not likely to get secondary turbulence at the fittings - because there are none.
If you were working with a tube bundle - such as a heat exchanger, then you would have short radius elbows to provide added friction.
If in doubt - do a test with a garden tap and hose pipe. You can coil that to a similar condition and you will quickly find if your pressure losses are more than calculated in straight pipe.
 
I agree with Johnp above.... the problem is basically on of a straight pipe.... suggest you purchase that an "old faithful" that I have in my library.... Crane Technical Manual #410..... AMAZON must have it.... also suggest that you try the superb fluid calculators on
Good luck !!! MJC
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top