On/Off Control

The length of time between water level measurements/ control adjustments is DT.

If the water level drops to the bottom of the band, the controller drives the inlet valve to 100% open.

The valve stays 100% open until the water level reaches the top of the band. When the water level reaches the top of the band, the controller drives the inlet valve to the fully closed position.

The inlet valve remains fully closed until the water level once again drops to the bottom of the band.

1.Write a script that prompts the user for the required inputs. Simulate water level control for the following inputs:

Tank dimensions:

D=5 feet

H=10 feet

Water level:

y_i=7 ft

y_sp=5 ft

Controller:

DT=30 seconds

BAND=1 ft

k_I=not used

Inlet Valve:

V_imax=100 gallons per minute

Out flow:

V_out=40 gallons per minute