6.21 DHWSolarSys
@DHWSolarSys[1..].
| Name | Input? | Runtime? | Type | Variability | Description |
|---|---|---|---|---|---|
| name | X | X | string | constant | – |
| elecMtri | X | X | integer number | input time | Meter for pump and parasitic electricity use |
| endUse | X | X | integer number | input time | End use of pump energy. defaults to “dhw” |
| parElec | X | X | number | hourly | Parasitic electricity use, w |
| scAreaTot | X | X | number | run start time (of each phase, autoSize or simulate) | Total of child dhwsolarcollectors, ft2 |
| scCount | X | X | number | run start time (of each phase, autoSize or simulate) | # of child dhwsolarcollectors (not necessarily # of panels) |
| tank.tEx | X | X | number | end of each subhour | – |
| tank.tASHPSrc | X | X | number | end of each subhour | – |
| tank.fMixUse | X | X | number | end of each subhour | – |
| tank.fMixRL | X | X | number | end of each subhour | – |
| tank.inElec[0] | X | X | number | end of each subhour | – |
| tank.inElec[1] | X | X | number | end of each subhour | – |
| tank.heatAdded[0] | X | X | number | end of each subhour | – |
| tank.heatAdded[1] | X | X | number | end of each subhour | – |
| tank.tOut | X | X | number | end of each subhour | – |
| tank.tOutCHDHW | X | X | number | end of each subhour | – |
| tank.HPWHxBU | X | X | number | end of each subhour | – |
| tank.qEnv | X | X | number | end of each subhour | – |
| tank.qLoss | X | X | number | end of each subhour | – |
| tank.qHW | X | X | number | end of each subhour | – |
| tank.qTX | X | X | number | end of each subhour | – |
| tank.tankHCNominal | X | X | number | end of each subhour | – |
| tank.tankHCBeg | X | X | number | end of each subhour | – |
| tank.tankHCEnd | X | X | number | end of each subhour | – |
| tank.tHWOutF | X | X | number | end of each subhour | – |
| tank.tHWOut | X | X | number | end of each subhour | – |
| tank.qBal | X | X | number | end of each subhour | – |
| tank.balErrMax | X | X | number | end of each subhour | – |
| tankVol | X | X | number | run start time (of each phase, autoSize or simulate) | Tank volume, gal |
| tankUA | X | X | number | run start time (of each phase, autoSize or simulate) | Tank water-to-air ua, btuh/f |
| tankInsulR | X | X | number | run start time (of each phase, autoSize or simulate) | Total tank insulation resistance, hr-f/btuh |
| tankZnTi | X | X | integer number | input time | Tank location zone re tank loss |
| tankTEx | X | X | number | hourly | Surrounding temperature, f for tank loss |
| tankTAvg | X | X | number | end of each hour | Hour average tank temp, f (check figure) |
| tankQLoss | X | X | number | end of each hour | Current hour’s total tank loss, btu |
| tankHXEff | X | X | number | hourly | Tank heat exchanger effectiveness |
| tankTHxLimit | X | X | number | input time | Tank temp limit, f; collector heat |
| tickVol | X | X | number | end of each subhour | Current tick draw to dhwsyss, gal |
| tickVolT | X | X | number | end of each subhour | Current tick (vol * inlet temp), gal-f |
| tickTankTOutlet | X | X | number | end of each subhour | Current tick tank outlet temp |
| drawVol | X | X | number | end of each hour | Current hour total draw, gal |
| tankQGain | X | X | number | end of each hour | Current hour total gain from solar hx (all collectors), btu |
| tankQGainTot | X | X | number | end of run (of each phase, autoSize or simulate) | Sw_tankqgain annual total, btu |
| tankTInlet | X | X | number | end of each hour | Tank inlet temperature, f |
| tankTOutlet | X | X | number | end of each hour | Current hour average tank outlet temperature, f |
| tankTHx | X | X | number | end of each hour | Nominal tank heat exchange temp, f |
| totOut | X | X | number | end of each hour | Current hour total dhwsolarsys output, btu |
| scFluidSpHt | X | X | number | input time | Collector working fluid specific heat, btu/lbm-f |
| scFluidDens | X | X | number | input time | Collector working fluid density, lb/ft3 |
| scFluidVHC | X | X | number | run start time (of each phase, autoSize or simulate) | Collector working fluid volumetric heat capacity, btu/gal-f |
| scTInlet | X | X | number | end of each hour | Mixed collector inlet temperature, f |
| scTOutlet | X | X | number | end of each hour | Mixed collector outlet temperature, f |
| overHeatHrCount | X | X | integer number | end of run (of each phase, autoSize or simulate) | Number of hours during which collector did not |
| SSFAnnual | X | X | number | end of run (of each phase, autoSize or simulate) | Annual solar savings fraction |