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| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=r64), | intent(in) | :: | AirFlowRateRatio | |||
| real(kind=r64), | intent(in), | optional | DIMENSION(:) | :: | Par |
Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed arrows point from an interface to procedures which implement that interface. This could include the module procedures in a generic interface or the implementation in a submodule of an interface in a parent module. Where possible, edges connecting nodes are given different colours to make them easier to distinguish in large graphs.
FUNCTION VSMerkelResidual(AirFlowRateRatio, Par) RESULT (Residuum)
! FUNCTION INFORMATION:
! AUTHOR <author>
! DATE WRITTEN <date_written>
! MODIFIED na
! RE-ENGINEERED na
! PURPOSE OF THIS FUNCTION:
! <description>
! METHODOLOGY EMPLOYED:
! <description>
! REFERENCES:
! na
! USE STATEMENTS:
USE CurveManager, ONLY : CurveValue
IMPLICIT NONE ! Enforce explicit typing of all variables in this routine
! FUNCTION ARGUMENT DEFINITIONS:
REAL(r64), INTENT(IN) :: AirFlowRateRatio ! fan speed ratio (1.0 is continuous, 0.0 is off)
REAL(r64), INTENT(IN), DIMENSION(:), OPTIONAL :: Par ! par(1) = Tower number
! par(2) =MyLoad [W] , negative is cooling
! par(3) = water mass flow per cell
! par(4) = Design UA per cell
! par(5) = UA adjust factor for wetbulb
! par(6) = UA adjust factor for water flow rate
! par(7) = specific heat of water at inlet temp
! par(8) = water mass flow rate, total [kg/s]
REAL(r64) :: Residuum ! residual to be minimized to zero
! FUNCTION PARAMETER DEFINITIONS:
! na
! INTERFACE BLOCK SPECIFICATIONS:
! na
! DERIVED TYPE DEFINITIONS:
! na
! FUNCTION LOCAL VARIABLE DECLARATIONS:
INTEGER :: TowerNum
REAL(r64) :: WaterMassFlowRatePerCell
REAL(r64) :: TargetLoad
REAL(r64) :: UAdesignPerCell
REAL(r64) :: UAwetbulbAdjFac
REAL(r64) :: UAairflowAdjFac
REAL(r64) :: UAwaterflowAdjFac
REAL(r64) :: CpWater
REAL(r64) :: TotalWaterMassFlowRate
REAL(r64) :: AirFlowRatePerCell
REAL(r64) :: UAadjustedPerCell
REAL(r64) :: Qdot
REAL(r64) :: OutletWaterTempTrial
TowerNum = INT(Par(1))
TargetLoad = Par(2)
WaterMassFlowRatePerCell = Par(3)
UAdesignPerCell = Par(4)
UAwetbulbAdjFac = Par(5)
UAwaterflowAdjFac = Par(6)
CpWater = Par(7)
TotalWaterMassFlowRate = Par(8)
AirFlowRatePerCell = AirFlowRateRatio * SimpleTower(TowerNum)%HighSpeedAirFlowRate / SimpleTower(TowerNum)%NumCell
UAairflowAdjFac = CurveValue(SimpleTower(TowerNum)%UAModFuncAirFlowRatioCurvePtr, AirFlowRateRatio)
UAadjustedPerCell = UAdesignPerCell*UAwetbulbAdjFac*UAairflowAdjFac*UAwaterflowAdjFac
CALL SimSimpleTower(TowerNum,WaterMassFlowRatePerCell,AirFlowRatePerCell,UAadjustedPerCell, OutletWaterTempTrial)
Qdot = TotalWaterMassFlowRate * CpWater * (Node(SimpleTower(TowerNum)%WaterInletNodeNum)%Temp - OutletWaterTempTrial)
Residuum = ABS(TargetLoad) - Qdot
RETURN
END FUNCTION VSMerkelResidual