DHWLOOPSEG
DHWLOOPSEG constructs one or more objects representing a segment of the preceeding DHWLOOP. A DHWLOOP can have any number of DHWLOOPSEGs to represent the segments of the loop with possibly differing sizes, insulation, or surrounding conditions.
wgName
Optional name of segment; give after the word “DHWLOOPSEG” if desired.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| 63 characters | none | No | constant |
wgTy
Type: choice
Specifies the type of segment. RETURN segments, if any, must follow SUPPLY segments.
| SUPPLY | Indicates a supply segment (flow is sum of circulation and draw flow, child DHWLOOPBRANCHs permitted). |
| RETURN | Indicates a return segment (flow is only due to circulation, child DHWLOOPBRANCHs not allowed) |
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| none | Yes | constant |
wgLength
Type: float
Length of segment.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| ft | x \(\ge\) 0 | 0 | No | constant |
wgSize
Type: float
Nominal size of pipe. CSE assumes the pipe outside diameter = size + 0.125 in.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| in | x \(>\) 0 | 1 | Yes | constant |
wgInsulK
Type: float
Pipe insulation conductivity
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| Btuh-ft/ft2-oF | x \(>\) 0 | 0.02167 | No | constant |
wgInsulThk
Type: float
Pipe insulation thickness
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| in | x \(\ge\) 0 | 1 | No | constant |
wgExH
Type: float
Combined radiant/convective exterior surface conductance between insulation (or pipe if no insulation) and surround.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| Btuh/ft2-oF | x \(>\) 0 | 1.5 | No | hourly |
wgExT
Type: float
Surrounding equivalent temperature.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| oF | x \(>\) 0 | 70 | No | hourly |
wgFNoDraw
Type: float
Fraction of hour when no draw occurs.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| oF | x \(>\) 0 | 70 | No | hourly |
endDHWLoopSeg
Optionally indicates the end of the DHWLOOPSEG definition.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| none | No |
Related Probes: