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Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
real(kind=r64), | intent(in) | :: | HPPartLoadRatio | |||
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.
REAL(r64) FUNCTION PLRResidualMixedTank(HPPartLoadRatio, Par)
! FUNCTION INFORMATION:
! AUTHOR Richard Raustad
! DATE WRITTEN May 2005
! MODIFIED
! RE-ENGINEERED
! PURPOSE OF THIS FUNCTION:
! Calculates residual function (desired tank temp - actual tank temp)
! HP water heater output depends on the part load ratio which is being varied to zero the residual.
! METHODOLOGY EMPLOYED:
! Calls CalcWaterThermalTankMixed to get tank temperature at the given part load ratio (source water mass flow rate)
! and calculates the residual as defined above
! REFERENCES:
! USE STATEMENTS:
! USE STATEMENTS:
USE DataHVACGlobals, ONLY: NumPlantLoops
IMPLICIT NONE ! Enforce explicit typing of all variables in this routine
! SUBROUTINE ARGUMENT DEFINITIONS:
REAL(r64), INTENT(IN) :: HPPartLoadRatio ! compressor cycling ratio (1.0 is continuous, 0.0 is off)
REAL(r64), INTENT(IN), DIMENSION(:), OPTIONAL :: Par ! par(1) = HP set point temperature [C]
! par(2) = tank mode
! par(3) = water heater num
! par(4) = FirstHVACIteration
! par(5) = MdotWater
! FUNCTION PARAMETER DEFINITIONS:
! na
! INTERFACE BLOCK SPECIFICATIONS
! na
! DERIVED TYPE DEFINITIONS
! na
! FUNCTION LOCAL VARIABLE DECLARATIONS:
INTEGER :: WaterThermalTankNum ! index of water heater
REAL(r64) :: NewTankTemp ! resulting tank temperature [C]
LOGICAL :: FirstHVACIteration ! FirstHVACIteration flag
WaterThermalTankNum = INT(Par(3))
WaterThermalTank(WaterThermalTankNum)%Mode = INT(Par(2))
WaterThermalTank(WaterThermalTankNum)%SourceMassFlowRate = Par(5) * HPPartLoadRatio
! FirstHVACIteration is a logical, Par is real, so make 1.0=TRUE and 0.0=FALSE
IF(Par(4) .EQ. 1.0d0)THEN
FirstHVACIteration = .TRUE.
ELSE
FirstHVACIteration = .FALSE.
END IF
CALL CalcWaterThermalTankMixed(WaterThermalTankNum)
NewTankTemp = WaterThermalTank(WaterThermalTankNum)%TankTemp
PLRResidualMixedTank = Par(1) - NewTankTemp
RETURN
END FUNCTION PLRResidualMixedTank