Jump to content

Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog

- - - - -

Oilfield Indirect Heater

overall heat transfer coff. indirect heater coil area coil sizing

2 replies to this topic
Share this topic:
| More

#1 elhady3000


    Brand New Member

  • Members
  • 6 posts

Posted 20 December 2018 - 02:27 AM

hi everybody, 

i was asked to design oilfield indirect heater with duty 8.5 MMBTU/hr in order to bid in favor of oil company, the problem is the coil i had calculated is very big, here under the specs of heater and i will attach the calculation sheet i made to calculate the coil area. 

water bath temp. = 85 C 

oil inlet temp. = 25 C

oil outlet temp. = 60 C 

assumed coil diameter = 4" 

Duty = 8.5 MMBTU/hr 

please check the calculations and see what is wrong 

#2 Art Montemayor

Art Montemayor

    Gold Member

  • Admin
  • 5,721 posts

Posted 20 December 2018 - 11:38 AM

You have not attached your calculations.   Try again.


Have you read and studied the design literature I prepared and submitted on this topic?  Go to:



#3 Dazzler


    Gold Member

  • Members
  • 140 posts

Posted 23 December 2018 - 06:50 PM

There are OEM's that specialise in the design and manufacture of these WBH's.  I work at one of them.  So another option for you is to state which country your end user is located in the world so that someone can advise a reasonably closeby OEM that you could contact.


Your duty of 8.5 Million BTU/h converts to 2.5MW which is a medium to large size. 

Edited by Dazzler, 09 March 2019 - 12:16 AM.

Reply to this topic


Similar Topics