I manage a SCADA system and we just put a new pump station online and in the programming of an older station the flow from each pump is calculated as shown below using a 5th order equation with the pool to pool head as the variable :
10 POOL.HEAD=DISCHARG.LVL-CANAL.LVL
20 FLOW2.CALC=(.05115121*POOL.HEAD**5)+(-3.536126*POOL.HEAD**4)+(92.40789*@
POOL.HEAD**3)+(-1136.182*POOL.HEAD**2)+(6475.484*POOL.HEAD)+@
(-12219.11)
30 FLOW1.CALC=(.00000275528*POOL.HEAD**5)+(-.00006510103*POOL.HEAD**4)+@
(-.001186331*POOL.HEAD**3)+(-.07603356*POOL.HEAD**2)+(-1.267723*@
POOL.HEAD)+(337.3005)
Does anyone have any idea on how the flow1.calc and flow2.calc equations were derived?
Thanks!
10 POOL.HEAD=DISCHARG.LVL-CANAL.LVL
20 FLOW2.CALC=(.05115121*POOL.HEAD**5)+(-3.536126*POOL.HEAD**4)+(92.40789*@
POOL.HEAD**3)+(-1136.182*POOL.HEAD**2)+(6475.484*POOL.HEAD)+@
(-12219.11)
30 FLOW1.CALC=(.00000275528*POOL.HEAD**5)+(-.00006510103*POOL.HEAD**4)+@
(-.001186331*POOL.HEAD**3)+(-.07603356*POOL.HEAD**2)+(-1.267723*@
POOL.HEAD)+(337.3005)
Does anyone have any idea on how the flow1.calc and flow2.calc equations were derived?
Thanks!