Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
real(kind=r64), | intent(in) | :: | UA | |||
real(kind=r64), | intent(in), | optional | DIMENSION(:) | :: | Par |
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FUNCTION SimpleHeatingCoilUAResidual(UA, Par) RESULT (Residuum)
! FUNCTION INFORMATION:
! AUTHOR Fred Buhl
! DATE WRITTEN November 2001
! MODIFIED
! RE-ENGINEERED
! PURPOSE OF THIS FUNCTION:
! Calculates residual function (Design Coil Load - Coil Heating Output) / Design Coil Load.
! Coil Heating Output depends on the UA which is being varied to zero the residual.
! METHODOLOGY EMPLOYED:
! Puts UA into the water coil data structure, calls CalcSimpleHeatingCoil, and calculates
! the residual as defined above.
! REFERENCES:
! USE STATEMENTS:
! na
IMPLICIT NONE ! Enforce explicit typing of all variables in this routine
! SUBROUTINE ARGUMENT DEFINITIONS:
REAL(r64), INTENT(IN) :: UA ! UA of coil
REAL(r64), INTENT(IN), DIMENSION(:), OPTIONAL :: Par ! par(1) = design coil load [W]
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 :: CoilIndex
INTEGER :: FanOpMode
REAL(r64) :: PartLoadRatio
CoilIndex = INT(Par(2))
IF(Par(3) .EQ. 1.0d0) THEN
FanOpMode = CycFanCycCoil
ELSE
FanOpMode = ContFanCycCoil
END IF
PartLoadRatio = Par(4)
WaterCoil(CoilIndex)%UACoilVariable = UA
CALL CalcSimpleHeatingCoil(CoilIndex, FanOpMode, PartLoadRatio, SimCalc)
Residuum = (Par(1) - WaterCoil(CoilIndex)%TotWaterHeatingCoilRate) / Par(1)
RETURN
END FUNCTION SimpleHeatingCoilUAResidual