Re: Two Way Motorised Ball Valve
Posted: Tue Apr 25, 2017 11:41 amToday and in the past week or so, I have finally pulled my finger out and done a couple of stripping runs on a neutral sugarhead, so bodgied together a reflux 'controller' to play with.
I have:
- PT100 sensor measuring temp above the four plates, but below the packed section - not ideal, but it is what I have
- pressure sensor measuring atmospheric pressure (for ABV calculation compensation)
- motor controller wired to two way motorised ball valve
Through the computer, I am able to set a target ABV. The temp and pressure readings are then used to calculated the ABV%. The Arduino has a PID program in it which varies the flow of coolant water through the RC in order to achieve the target ABV. I am able to manually change the P,I and D settings and visualise their effect on response.
Vids below
I have:
- PT100 sensor measuring temp above the four plates, but below the packed section - not ideal, but it is what I have
- pressure sensor measuring atmospheric pressure (for ABV calculation compensation)
- motor controller wired to two way motorised ball valve
Through the computer, I am able to set a target ABV. The temp and pressure readings are then used to calculated the ABV%. The Arduino has a PID program in it which varies the flow of coolant water through the RC in order to achieve the target ABV. I am able to manually change the P,I and D settings and visualise their effect on response.
Vids below