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


HYSYS Fired Heater modelling

HYSYS Fired Heater modelling

HYSYS Fired Heater modelling

Hello and good day to dear Engineers,

First of all, I am new to this Engineering forum. I believe that I can be given some good guidance and references from you all through this forum.

I was given a task to model the existing steam generator with a fired heater using HYSYS program. I have not done this fired heater with HYSYS model before. So, i would like to post my question to get some ideas to start my work.

1. I have tried to model this with the simplified model and after I specified all the inputs, the output temperature does not change (T in = T out). Why does the Temp. the same?
2. How can I specified the Air and Fuel input?
3. How can I identified the impact of the Temp. Change to tube (tube expand)?

Appreciate your support in this regard.


RE: HYSYS Fired Heater modelling

you may know that there is a specific Aspen forum for questions about to use the software,

take care that fired heaters are not simple to model,
with a different software (Prode Properties) I model separately combustion (solving a reactor or starting from HC heats of combustion) and water/oil side (as heat exchanger),
I do this in Excel or Matlab (with Prode library) and results are about accurate (for a realistic simulation one should consider really a lot of different parameters...)
Consider also these aspect when evaluating your results...

RE: HYSYS Fired Heater modelling

Thanks apetri.

I am posting this basically to gain some guidance from this forum (I assuming that some one might have done this before).

From the model I have built, I want to know how much heat I can transfer from radiant zone to convective zone (to make convective zone equal to 350 deg C). However, from my model even i have increase the Temperature and the flow rate of the flue gas the outlet from convective zone doesn't change at all. (Convective Tin = Tout)?

If someone has done or used the HYSYS software to simulate fired heater, would be great I can get you thoughts.

RE: HYSYS Fired Heater modelling

I was not aware of realistic models for fired heaters available in Aspen, maybe some additional module,
if you wish that software estimates heat transfers with sufficient accuracy you should also define the geometry and several other parameters (as I do in Excel / Matlab with Prode),

if input form for fired heaters has all these fields probably it's only a matter to enter the correct data... some other member can help.

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!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close