THERMALSTORAGE:CHILLEDWATER:STRATIFIED

Chilled water storage with a stratified, multi-node tank. The chilled water is "used" by drawing from the "Use Side" of the water tank. The tank is indirectly charged by circulating cold water through the "Source Side" of the water tank.

Name
Type: alphanumeric

Tank Volume
Type: real number
Unit: m3

Tank Height
Type: real number
Height is measured in the axial direction for horizontal cylinders
Unit: m

Tank Shape
Type: choice (VerticalCylinder, HorizontalCylinder or Other)
Default: VerticalCylinder

Tank Perimeter
Type: real number
Only used if Tank Shape is Other
Unit: m
Minimum: 0.0

Setpoint Temperature Schedule Name
Type: list of objects (SCHEDULE:FILE, SCHEDULE:CONSTANT, SCHEDULE:YEAR, EXTERNALINTERFACE:FUNCTIONALMOCKUPUNITIMPORT:TO:SCHEDULE, SCHEDULE:COMPACT or EXTERNALINTERFACE:SCHEDULE)

Deadband Temperature Difference
Type: real number
Unit: deltaC
Minimum: 0.0
Default: 0.0

Temperature Sensor Height
Unit: m
Minimum: 0.0

Minimum Temperature Limit
Type: real number
Unit: C

Nominal Cooling Capacity
Type: real number
Unit: W

Ambient Temperature Indicator
Type: choice (Schedule, Zone or Outdoors)

Ambient Temperature Schedule Name
Type: list of objects (SCHEDULE:FILE, SCHEDULE:CONSTANT, SCHEDULE:YEAR, EXTERNALINTERFACE:FUNCTIONALMOCKUPUNITIMPORT:TO:SCHEDULE, SCHEDULE:COMPACT or EXTERNALINTERFACE:SCHEDULE)

Ambient Temperature Zone Name
Type: list of objects ( or ZONE)

Ambient Temperature Outdoor Air Node Name
Type: node
Required for Ambient Temperature Indicator=Outdoors

Uniform Skin Loss Coefficient per Unit Area to Ambient Temperature
Type: real number
Unit: W/m2-K
Minimum: 0.0

Use Side Inlet Node Name
Type: node

Use Side Outlet Node Name
Type: node

Use Side Heat Transfer Effectiveness
Type: real number
The use side effectiveness in the stratified tank model is a simplified analogy of a heat exchanger's effectiveness. This effectiveness is equal to the fraction of use mass flow rate that directly mixes with the tank fluid. And one minus the effectiveness is the fraction that bypasses the tank. The use side mass flow rate that bypasses the tank is mixed with the fluid or water leaving the stratified tank.
Minimum: 0.0
Maximum: 1.0
Default: 1.0

Use Side Availability Schedule Name
Type: list of objects (SCHEDULE:FILE, SCHEDULE:CONSTANT, SCHEDULE:YEAR, EXTERNALINTERFACE:FUNCTIONALMOCKUPUNITIMPORT:TO:SCHEDULE, SCHEDULE:COMPACT or EXTERNALINTERFACE:SCHEDULE)
Availability schedule name for use side. Schedule value > 0 means the system is available. If this field is blank, the system is always available.

Use Side Inlet Height
Type: real number
Defaults to top of tank
Unit: m
Minimum: 0.0
Default: autocalculate

Use Side Outlet Height
Type: real number
Defaults to bottom of tank
Unit: m
Minimum: 0.0
Default: 0.0

Use Side Design Flow Rate
Type: real number
Unit: m3/s
Minimum: 0.0
Default: autosize

Source Side Inlet Node Name
Type: node

Source Side Outlet Node Name
Type: node

Source Side Heat Transfer Effectiveness
Type: real number
The source side effectiveness in the stratified tank model is a simplified analogy of a heat exchanger's effectiveness. This effectiveness is equal to the fraction of source mass flow rate that directly mixes with the tank fluid. And one minus the effectiveness is the fraction that bypasses the tank. The source side mass flow rate that bypasses the tank is mixed with the fluid or water leaving the stratified tank.
Maximum: 1.0
Default: 1.0

Source Side Availability Schedule Name
Type: list of objects (SCHEDULE:FILE, SCHEDULE:CONSTANT, SCHEDULE:YEAR, EXTERNALINTERFACE:FUNCTIONALMOCKUPUNITIMPORT:TO:SCHEDULE, SCHEDULE:COMPACT or EXTERNALINTERFACE:SCHEDULE)
Availability schedule name for use side. Schedule value > 0 means the system is available. If this field is blank, the system is always available.

Source Side Inlet Height
Type: real number
Defaults to bottom of tank
Unit: m
Minimum: 0.0
Default: 0.0

Source Side Outlet Height
Type: real number
Defaults to top of tank
Unit: m
Minimum: 0.0
Default: autocalculate

Source Side Design Flow Rate
Type: real number
Unit: m3/s
Minimum: 0.0
Default: autosize

Tank Recovery Time
Type: real number
Parameter for autosizing design flow rates for indirectly cooled water tanks time required to lower temperature of entire tank from 14.4C to 9.0C
Unit: hr
Default: 4.0

Inlet Mode
Type: choice (Fixed or Seeking)
Default: Fixed

Number of Nodes
Type: integer
Minimum: 1
Maximum: 10
Default: 1

Additional Destratification Conductivity
Type: real number
Unit: W/m-K
Minimum: 0.0
Default: 0.0

Node 1 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 2 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 3 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 4 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 5 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 6 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 7 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 8 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 9 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0

Node 10 Additional Loss Coefficient
Type: real number
Unit: W/K
Default: 0.0