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Simulation Core
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SimulationCore2/Equipments/Pumps/Pump_OffMode_Solver.f90

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  1. subroutine Pump_OffMode_Solver(Pump_No)

  2.     

  3.     use SimulationVariables

  4.     

  5.     IMPLICIT NONE

  6.     INTEGER :: Pump_No

  7.     

  8.     

  9.     

  10.     data%State%Pump(Pump_No)%N_new = 0.d0

  11.     

  12.     !========================== Pump Rate limit ==========================

  13.     if (((data%State%Pump(Pump_No)%N_new-data%State%Pump(Pump_No)%N_old)/data%State%Pump(Pump_No)%time_step)>data%State%Pump(Pump_No)%RateChange) then

  14.         data%State%Pump(Pump_No)%Speed =(data%State%Pump(Pump_No)%RateChange*data%State%Pump(Pump_No)%time_step)+data%State%Pump(Pump_No)%N_old

  15.     else if (((data%State%Pump(Pump_No)%N_old-data%State%Pump(Pump_No)%N_new)/data%State%Pump(Pump_No)%time_step)>data%State%Pump(Pump_No)%RateChange) then

  16.         data%State%Pump(Pump_No)%Speed = (-data%State%Pump(Pump_No)%RateChange*data%State%Pump(Pump_No)%time_step)+data%State%Pump(Pump_No)%N_old

  17.     else

  18.         data%State%Pump(Pump_No)%Speed = data%State%Pump(Pump_No)%N_new

  19.     end if

  20.     !=======================================================================

  21.          

  22.         

  23.     data%State%Pump(Pump_No)%Flow_Rate = data%State%Pump(Pump_No)%FlowRatePerSTK*4118.d0*0.01d0*(data%State%Pump(Pump_No)%Speed/data%State%Pump(Pump_No)%Trans_Ratio)                                 ![gpm]

  24.     data%State%Pump(Pump_No)%HorsePower = ((data%State%Pump(Pump_No)%Flow_Rate/0.01d0)*data%State%Pump(Pump_No)%StandPipe_Pressure)/(168067.d0*data%State%Pump(Pump_No)%Mech_Efficiency)              ![HHP]

  25.     !data%State%Pump(Pump_No)%Max_Horsepower = ((data%State%Pump(Pump_No)%Flow_Rate/0.01d0)*data%State%Pump(Pump_No)%Max_Pressure)/(168067.d0*data%State%Pump(Pump_No)%Mech_Efficiency)               ![HHP]

  26.     data%State%Pump(Pump_No)%Max_Horsepower = (data%State%Pump(Pump_No)%Flow_Rate*data%State%Pump(Pump_No)%Max_Pressure)/(1714.d0*data%State%Pump(Pump_No)%Mech_Efficiency)

  27.     if ( data%State%Pump(Pump_No)%StandPipe_Pressure>data%State%Pump(Pump_No)%Max_Pressure ) then   ! in shart check shavad

  28.     !if ( (data%State%Pump(Pump_No)%StandPipe_Pressure*data%State%Pump(Pump_No)%Flow_Rate)>(1714.d0*data%State%Pump(Pump_No)%Max_Horsepower*data%State%Pump(Pump_No)%Mech_Efficiency) ) then

  29.         data%State%Pump(Pump_No)%Flow_Rate = (1714.d0*data%State%Pump(Pump_No)%Mech_Efficiency*data%State%Pump(Pump_No)%Max_Horsepower)/data%State%Pump(Pump_No)%StandPipe_Pressure                   ![gpm]

  30.         data%State%Pump(Pump_No)%Speed     = ( data%State%Pump(Pump_No)%Flow_Rate/(data%State%Pump(Pump_No)%FlowRatePerSTK*4118.d0*0.01d0) )*data%State%Pump(Pump_No)%Trans_Ratio                     ![rpm]

  31.     end if

  32.         

  33.     data%State%Pump(Pump_No)%SoundSPM = INT(data%State%Pump(Pump_No)%Speed/data%State%Pump(Pump_No)%Trans_Ratio)

  34.         

  35.     If (data%State%Pump(Pump_No)%Flow_Rate>0.d0) Then

  36.         data%State%Pump(Pump_No)%Open_Close = 1

  37.     Else

  38.         data%State%Pump(Pump_No)%Open_Close = 0

  39.     End if

  40.         

  41.    

  42.     

  43.         

  44.        

  45.         

  46. end subroutine Pump_OffMode_Solver