?
Dear Friends,
I am in the process of finalizing Deaerator level control loop which uses 3-element control philosophy. 3-elements are listed here.
1) Deaerator level
2) Feedwater flow to boiler
3) Condensate flow to deaerator
While designing this control loop, I have also found that there are also other variable inputs to deaerator (like heater drain flow and deaerator pegging steam from turbine extraction). These parameters are also varying with turbine load.
How to take care of these things while designing control loop.
Whether we should do deaerator mass balancing ? or we should take only feed forward action on boiled feedwater flow ?
Can we consider derivative action on feedwater flow ?
I request you to advise me on this topic. I also request you to share document if you have.
My e-mail IDs are agdsnl [at]ltecd.ltindia.com and ankur13780 [at] yahoo.com
Best regards
Ankur
I am in the process of finalizing Deaerator level control loop which uses 3-element control philosophy. 3-elements are listed here.
1) Deaerator level
2) Feedwater flow to boiler
3) Condensate flow to deaerator
While designing this control loop, I have also found that there are also other variable inputs to deaerator (like heater drain flow and deaerator pegging steam from turbine extraction). These parameters are also varying with turbine load.
How to take care of these things while designing control loop.
Whether we should do deaerator mass balancing ? or we should take only feed forward action on boiled feedwater flow ?
Can we consider derivative action on feedwater flow ?
I request you to advise me on this topic. I also request you to share document if you have.
My e-mail IDs are agdsnl [at]ltecd.ltindia.com and ankur13780 [at] yahoo.com
Best regards
Ankur