iacopo ducci University of Florence

Hi all,

I am new on this forum. I have a problem: I would need to set up a control (PI controller) on the aerobic tank that return as output DO imposing constant Kla and constant flow air. I currently have a control that, fixed setpoint DO, it calculate Kla such that it has setpoint DO; I noticed that on the link tank-control control you can choose several variables to y_M, while on the link control-tank only parameter u to Kla.

Essentially I would check that you have consumption of DO in the tank when the biodegradable load changes in input plant, with constant Kla and constant flow air. At present imposing a set point of DO, when I increase the input load, having to maintain set point DO, the model returns me an increase of Aeration Energy and so of flow air. I suppose I should create a new model in the library. but how?!

Thanks