The Basement idd¶
The basement idd objects and fields are shown below. These objects also appear in the main Energy+.IDD file with the prefix "GroundHeatTransfer:Basement:"
! Basement foundation heat transfer module Input Data Dictionary file
! Created: August 18, 2000
! Written by: Edward Clements
! Modified for EnergyPlus Auxiliary Application by C. O. Pedersen 10/04
! Description format: FORTRAN var.: description, units, typ. values
SimParameters,
N1,\field F: Multiplier for the ADI solution:
\note 0<F<1.0,
\note typically 0.1 (0.5 for high k soil]
N2; \field IYRS: Maximum number of yearly iterations:
\note typically 15-30]
MatlProps,
N1, \field NMAT: Number of materials in this domain
\maximum 6
N2, \field Density for Foundation Wall
\note typical value 2243
\units kg/m3
N3, \field density for Floor Slab
\note typical value 2243
\units kg/m3
N4, \field density for Ceiling
\note typical value 311
\units kg/m3
N5, \field density for Soil
\note typical value 1500
\units kg/m3
N6, \field density for Gravel
\note typical value 2000
\units kg/m3
N7, \field density for Wood
\note typical value 449
\units kg/m3
N8, \field Specific heat for foundation wall
\note typical value 880
\units J/kg-K
N9, \field Specific heat for floor slab
\note typical value 880
\units J/kg-K
N10, \field Specific heat for ceiling
\note typical value 1530
\units J/kg-K
N11, \field Specific heat for soil
\note typical value 840
\units J/kg-K
N12, \field Specific heat for gravel
\note typical value 720
\units J/kg-K
N13, \field Specific heat for wood
\note typical value 1530
\units J/kg-K
N14, \field Thermal conductivity for foundation wall
\note typical value 1.4
\units W/m-K
N15, \field Thermal conductivity for floor slab
\note typical value 1.4
\units W/m-K
N16, \field Thermal conductivity for ceiling
\note typical value 0.09
\units W/m-K
N17, \field thermal conductivity for soil
\note typical value 1.1
\units W/m-K
N18, \field thermal conductivity for gravel
\note typical value 1.9
\units W/m-K
N19; \field thermal conductivity for wood
\note typical value 0.12
\units W/m-K
Insulation,
N1, \field REXT: R Value of any exterior insulation, K/(W/m2)]
\units m2-K/W
A1; \field INSFULL: Flag: Is the wall fully insulated?
\note True for full insulation
\note False for insulation half way down side wall from grade line
SurfaceProps,
N1, \field ALBEDO: Surface albedo for No snow conditions
\note typical value 0.16
N2, \field ALBEDO: Surface albedo for snow conditions
\note typical value 0.40
N3, \field EPSLN: Surface emissivity No Snow
\note typical value 0.94
N4, \field EPSLN: Surface emissivity with Snow
\note typical value 0.86
N5, \field VEGHT: Surface roughness No snow conditions,cm
\note typical value 6.0
\units cm
N6, \field VEGHT: Surface roughness Snow conditions, cm, ]
\note typical value 0.25
\units cm
A1; \field PET: Flag, Potential evapotranspiration on? T/F]
\note Typically, PET is True
BldgData,
N1, \field DWALL: Wall thickness,
\note typical value .2]
\units m
N2, \field DSLAB: Floor slab thickness,
\units m
\maximum 0.25
N3, \field DGRAVXY: Width of gravel pit beside basement wall
\units m
N4, \field DGRAVZN: Gravel depth extending above the floor slab
\units m
N5; \field DGRAVZP: Gravel depth below the floor slab,
\units m
\note typical value 0.1
Interior,
A1, \field COND: Flag: Is the basement conditioned?
\note TRUE or FALSE
\note for EnergyPlus this should be TRUE
N1, \field HIN: Downward convection only heat transfer coefficient
\units W/m2-K
N2, \field HIN: Upward convection only heat transfer coefficient
\units W/m2-K
N3, \field HIN: Horizontal convection only heat transfer coefficient
\units W/m2-K
N4, \field HIN: Downward combined (convection and radiation) heat transfer coefficient
\units W/m2-K
N5, \field HIN: Upward combined (convection and radiation) heat transfer coefficient
\units W/m2-K
N6; \field HIN: Horizontal combined (convection and radiation) heat transfer coefficient
\units W/m2-K
ComBldg,
\memo ComBldg contains the monthly average temperatures (C) and possibility of daily variation amplitude
N1, \field January average temperature
\units C
N2, \field February average temperature
\units C
N3, \field March average temperature
\units C
N4, \field April average temperature
\units C
N5, \field May average temperature
\units C
N6, \field June average temperature
\units C
N7, \field July average temperature
\units C
N8, \field August average temperature
\units C
N9, \field September average temperature
\units C
N10, \field October average temperature
\units C
N11, \field November average temperature
\units C
N12, \field December average temperature
\units C
N13; \field Daily variation sine wave amplitude
\units C
\note (Normally zero, just for checking)
EquivSlab, ! Supplies the EquivSizing Flag
! Using an equivalent slab allows non-rectangular shapes to be
! modeled accurately.
! The simulation default should be EquivSizing = True
N1, \field APRatio: The area to perimeter ratio for this slab
\ units m
A1; \field EquivSizing: Flag
\note Will the dimensions of an equivalent slab be calculated (TRUE)
\note or will the dimensions be input directly? (FALSE)]
\note Only advanced special simulations should use FALSE.
EquivAutoGrid,
\memo EquivAutoGrid necessary when EquivSizing = TRUE, TRUE is is the normal case.
N1, \field CLEARANCE: Distance from outside of wall to edge of 3-D ground domain
\units m
\note typical value 15m
N2, \field SlabDepth: Thickness of the floor slab
\units m
\note typical value 0.1m
N3; \field BaseDepth: Depth of the basement wall below grade
\units m
AutoGrid, ! NOTE: AutoGrid only necessary when EquivSizing is false
! If the modelled building is not a rectangle or square, Equivalent
! sizing MUST be used to get accurate results
N1, \field CLEARANCE: Distance from outside of wall to edge, 15m]
N2, \field SLABX: X dimension of the building slab, 0-60.0 m]
N3, \field SLABY: Y dimension of the building slab, 0-60.0 m]
N4, \field ConcAGHeight: Height of the fndn wall above grade, m]
N5, \field SlabDepth: Thickness of the floor slab, m, 0.1]
N6; \field BaseDepth: Depth of the basement wall below grade, m]
ManualGrid, ! NOTE: Manual Grid only necessary using manual gridding
! (not recommended)
N1, \field NX: Number of cells in the X direction: 20]
N2, \field NY: Number of cells in the Y direction: 20]
N3, \field NZAG: Number of cells in the Z direction
! above grade: 4 Always]
N4, \field NZBG: Number of cells in Z dir. below grade: 10-35]
N5, \field IBASE: X direction cell indicator of slab edge: 5-20]
N6, \field JBASE: Y direction cell indicator of slab edge: 5-20]
N7; \field KBASE: Z direction cell indicator
! of the top of the floor slab: 5-20]
XFACE, ! NOTE: This is only needed when using manual gridding
! (not recommended)
! [XFACE: X Direction cell face coordinates: m]
N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14,
N15, N16, N17, N18, N19, N20, N21, N22, N23, N24, N25, N26,
N27, N28, N29, N30, N31, N32, N33, N34, N35, N36, N37, N38,
N39, N40, N41, N42, N43, N44;
YFACE, !NOTE: This is only needed when using manual gridding
! (not recommended)
! [YFACE: Y Direction cell face coordinates: m],
N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14,
N15, N16, N17, N18, N19, N20, N21, N22, N23, N24, N25, N26,
N27, N28, N29, N30, N31, N32, N33, N34, N35, N36, N37, N38,
N39, N40, N41, N42, N43, N44;
ZFACE, !NOTE: This is only needed when using manual gridding
! (not recommended)
! [ZFACE: Z Direction cell face coordinates: m]
N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14,
N15, N16, N17, N18, N19, N20, N21, N22, N23, N24, N25, N26,
N27, N28, N29, N30, N31, N32, N33, N34, N35, N36, N37, N38,
N39, N40;