Modelling of steam flow control valve?

Hello,

I am trying to model a simple steam control valve in simulink. Is there any way to model that. I know the basic dynamics of the valve, how can i implement the actuation of the valve in simulink.

[Ameer Hamza]

What is the equation for the block dynamics?

[vishnuvardhan naidu tanga]

ms = xs*13.6*sqrt(rho*P)*Kv/3600;

here ms = mass florate

rho = Density

P = pressure

Kv = valve coefficient

xs = is the valve opening % from 0 - 100%

I need to control the xs with respect to time. for example 10% every 100 sec

Answer 1

[Ameer Hamza]

You can use the MATLAB function block: https://www.mathworks.com/help/simulink/ug/creating-an-example-model-that-uses-a-matlab-function-block.html to write this equation. Then you can use a pulse generator block: https://www.mathworks.com/help/simulink/slref/pulsegenerator.html to generate a periodic pulse.