DHWSOLARCOLLECTOR¶
Solar Collector Array. May be multiple collectors on the same DHWSOLARSYS system. All inlets come from the DHWSOLARTANK.
Uses SRCC Ratings.
scArea¶
Type: float
Collector area.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| ft^2 | > 0 | 0 | Yes | constant |
scMult¶
Number of identical collectors, default 1
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| \(>\) 0 | 1 | No | constant |
scTilt¶
Type: float
Array tilt.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| deg | 0 | Yes | constant |
scAzm¶
Type: float
Array azimuth.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| deg | 0 | Yes | constant |
scFRUL¶
Type: float
Fit slope
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| Btuh/ft^2-°F | -0.727 | No | constant |
scFRTA¶
Type: float
Fit y-intercept
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| none | \(>\) 0 | 0.758 | No | constant |
scTestMassFlow¶
Type: flaot
Mass flow rate for collector loop SRCC rating.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| lb/h-ft2 | x \(>\) 0 | 14.79 | No | constant |
scKta60¶
Type: float
Incident angle modifier at 60 degree, from SRCC rating.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| x ≥ 0 | 0.72 | No | constant |
scOprMassFlow¶
Type: float
Collector loop operating mass flow rate.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| lb/h-ft2 | x \(>\) 0 | 0.0 | No | constant |
scPipingLength¶
Type: float
Collector piping length.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| ft | x ≥ 0 | 0.0 | No | Hourly and at the end of interval |
scPipingInsulK¶
Type: float
Collector piping insulation conductivity.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| x \(>\) 0 | 0.02167 | No | Hourly and at the end of interval |
scPipingInsulThk¶
Type: float
Collector piping insulation thickness.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| x ≥ 0 | 1.0 | No | Hourly and at the end of interval |
scPipingExH¶
Type: float
Collector piping heat transfer coefficient.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| x \(>\) 0 | 1.5 | No | Hourly and at the end of interval |
scPipingExT¶
Type: float
Collector piping surround temperature.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| °F | x ≥ 32 | 70.0 | No | hourly |
scPumpPwr¶
Type: float
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| Btu/h | x ≥ 0 | from scPumpflow | No | constant |
scPumpLiqHeatF¶
Type: float
Fraction of scPumpPwr added to liquid stream, the remainder is discarded.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| x ≥ 0 | 1.0 | No | Every run |
scPumpOnDeltaT¶
Type: float
Temperature difference between the tank and collector outlet where pump turns on
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| °F | 10.0 | No | constant |
scPumpOffDeltaT¶
Type: float
Temperature difference between the tank and collector outlet where pump turns off
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| °F | 5.0 | No | constant |
endDHWSOLARCOLLECTOR¶
Optionally indicates the end of the DHWSOLARCOLLECTOR definition.
| Units | Legal Range | Default | Required | Variability |
|---|---|---|---|---|
| none | No |