Fired Heater Simulation & Modelling

Accessing the DCS Site Operation Function

Software guidance and support

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Please see the step-by-step guidance notes below. If you still have further questions about this area of using the software, please feel free to contact us

In order to access the DCS Site Operation mode, you will have to first 'Run' a heater simulation and the specify the results as the 'Design Case'. 

1) On the Simulation Results page, click the 'Set as Design Case' button as shown below

Co-current fired heater software tutorial - Heater560

2) Then, on the main window, go to the 'Site Operation' tab and then click 'Start'

Co-current fired heater software tutorial - Heater560

3) The DCS Site Operation window will be opened and displayed as shown below. Please also notice the listed functions below for the main buttons in theis window.

Image description

A) Open burner curve (you can define fuel heat release vs pressure curve)

B) Open fuel valve curve (you can define the fuel control valve position vs fuel flow)

C) You can define combustion air damper position vs flow

D) Open Alarm and Trip Points window (You can edit Alarm and Trip Points for the main heater trips)

E) Same as section ‘D’ above

F) Change units

G) Process Outlet temperature control, You can chnge whether simulations run in this section will attempt to match the specified outlet temperature OR based on incoming inlet temperature

H) Fuel-Air ratio linked, you can determine whether simulations are run with the air flow linked to the fuel flow changes to maintain a fixed excess air (available for forced draft heaters only).

I) If active, simulations will run with the tack damper automatically adjusting to maintain -2.5mmwg at the arch

J) Specify outlet temperature if process outlet temperature control is active. Otherwise, specify inlet temperature if process outlet temperature control is inactive.

K) Toggles to adjust fuel flow, air flow and process flow and observe simulation results dynamically

L) Adjust the Alarm and Trip Points and data curves for each respective button as listed

M) Dynamic simulation results

We hope that this has been useful for you. If you have more questions, you're welcome to contact us

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