×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Natural gas electric (indirect) heater

Natural gas electric (indirect) heater

Natural gas electric (indirect) heater

(OP)
I have to design a very unusual natural gas heater for a sea platform skid, that shall be structured in this way:

- A jacketed vertical vessel with dyatermic oil inside, heated by an electric resistance, provided by a on-off device;

- A natural gas flux trough the jacket, where the gas has to be heated up to a fixed temperature value.

It seems that I have two kinds of heat transfer process, supposing to keep the diatermic oil temperature at a constant value:

- a natural convection from the diatermic oil side to the jacket wall;

- a forced convection between the natural gas and the jacket inside wall.

I am trying to find an equation system that allow me to size and design this kind of gas heater and perhaps I found it using the Kern books, but I'm not sure.
This is an AGIP standard gas heater, but I was'nt able to find any refereces about it; I wonder if someone knows an experienced system to calculate ad size it.

RE: Natural gas electric (indirect) heater

Armstrong designs and manufacturers direct electric heaters for HP gas service.

http://www.rmarmstrong.com/eheater.htm

Sorry, I don't have any specific design references for you.

RE: Natural gas electric (indirect) heater

From personal experience Armstrong-Chemtec are very good for electric heaters. I strongly support TD2K's advice.

RE: Natural gas electric (indirect) heater

Dear Supermax,
Do you need the answer only for this type of design or substitute will do.
We have a indirect type natural gas heater which maintains the outlet gas temp to the required setpoint.(55 DegC)
in this water is heated by using the same gas in the burners and water is heated up to @70 Deg C and gas is passed through the hot water and heat is exchanged to heat up the gas.
If any further info needs, contact.
HP.

RE: Natural gas electric (indirect) heater

(OP)
Thank you PremP, but I can't choose a different heater because of the supply specifications that the client gave me.
Thanks to all of you for your answers.

RE: Natural gas electric (indirect) heater

Supermax,

You can go to www.IntegraHeat.com and size a custom built electric process heater using your information.

Regards,

Craig

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources