Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Gas oil supply to fired heater burners

Status
Not open for further replies.

roker

Chemical
Jun 23, 2004
198
Hello,

When burners are burning fuel-oil there is a supply and return line with a flow ratio of 3 to 2 (one part is consumed in the burner), should we keep this arrangement also in the case that gas-oil is being burned?

regards,
roker
 
Replies continue below

Recommended for you

Fuel oil and gas-oil are generic terms that mean different things to people in different parts of the world. Since this forum is contributed to by participants from all parts of the world, I think it would help clarify your question if you would give the actual specifications of the fuels you are inquiring about.

rmw
 
The recirculation is done so that
1.the header pressure remains constant till the last burner, provided in the recirculation is from the end of the heater burner fuel header.
2. To keep the upstream pressure to the control valve reasonably constant under varying fuel consumptions, if the reurn line takes off from the main fuel oil haeder.
3. To check out the fuel oil circuit before start up, maintain the flow during unsteady state,etc.
4. keep the line from congealing, keep the tank contents well mixed,etc. (For Fuel Oil)
5.to protect the fuel oil pump when the fuel is suddenly cut off to the burner.
6.Certain installtions have even return lines from each burner to Return oil header.
Basically, the header supply pressure remains constant in spite of fuel flow fluctations which depends on heater load.
Best wishes.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor