6.22 DHWSYS
@DHWSYS[1..].
| Name | Input? | Runtime? | Type | Variability | Description |
|---|---|---|---|---|---|
| name | X | X | string | constant | – |
| calcMode | X | X | unrecognized | input time | Calculation mode |
| centralDHWSYSi | X | X | integer number | input time | Index of central (parent) dhwsys, 0 if none |
| mult | X | X | number | input time | Multiplier: model as ws_mult identical systems |
| elecMtri | X | X | integer number | input time | Meter for system electricity use |
| fuelMtri | X | X | integer number | input time | Meter for system fuel use |
| inElec | X | X | number | end of each hour | Electricity (note not kwh) |
| inFuel | X | X | number | end of each hour | Fuel (for generality, always 0?) |
| swTi | X | X | integer number | input time | Dhwsolarsys providing preheated water to this system |
| qSlr | X | X | number | end of each hour | Hour total water heating energy provided by |
| SSFAnnualSolar | X | X | number | end of run (of each phase, autoSize or simulate) | Annual solar heat added (numerator to calculate ssf), btu |
| SSFAnnualReq | X | X | number | end of run (of each phase, autoSize or simulate) | Annual heat required (denominator to calculate ssf), btu |
| SSFAnnual | X | X | number | end of run (of each phase, autoSize or simulate) | Annual solar savings fraction |
| tInlet | X | X | number | end of each hour | Current hour cold water inlet temp for this dhwsys, f |
| tInletTest | X | X | number | subhourly | Current subhour cold water inlet temp for this dhwsys, f |
| tInletX | X | X | number | end of each hour | Hour average adjusted cold water temp, f |
| hwUse | X | X | number | hourly | Current hour hot water use (at fixtures), gal |
| hwUseTest | X | X | number | subhourly | Current subhour additional hot water use (at fixtures), gal/subhour |
| tRLTest | X | X | number | subhourly | Current subour dhwloop return temp, f |
| volRLTest | X | X | number | subhourly | Current subour recirc loop flow, gal (per subhr) |
| qDWHR | X | X | number | end of each hour | Hour all dhwheatrec total heat to fixtures and water heaters, btu |
| qDWHRWH | X | X | number | end of each hour | Hour all dhwheatrec total heat to water heater(s), btu |
| WHhwMtri | X | X | integer number | input time | Dhwmtr for hot water use at water heater(s) (= ws_whuse), gal |
| FXhwMtri | X | X | integer number | input time | Dhwmtr for hot water use at fixtures (= ws_fxusemix), gal |
| whUseNoHR | X | X | number | end of each hour | Current hour virtual hot water use w/o heat recovery, gal |
| fxUseMix.total | X | X | number | end of each hour | – |
| fxUseMix.unknown | X | X | number | end of each hour | – |
| fxUseMix.faucet | X | X | number | end of each hour | – |
| fxUseMix.shower | X | X | number | end of each hour | – |
| fxUseMix.bath | X | X | number | end of each hour | – |
| fxUseMix.cwashr | X | X | number | end of each hour | – |
| fxUseMix.dwashr | X | X | number | end of each hour | – |
| fxUseMixTot[0] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixTot[1] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixTot[2] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixTot[3] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixTot[4] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixTot[5] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixTot[6] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixTot[7] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total (mixed) water use at fixtures by end use, gal |
| fxUseMixLH.total | X | X | number | hourly | – |
| fxUseMixLH.unknown | X | X | number | hourly | – |
| fxUseMixLH.faucet | X | X | number | hourly | – |
| fxUseMixLH.shower | X | X | number | hourly | – |
| fxUseMixLH.bath | X | X | number | hourly | – |
| fxUseMixLH.cwashr | X | X | number | hourly | – |
| fxUseMixLH.dwashr | X | X | number | hourly | – |
| whUse.total | X | X | number | end of each hour | – |
| whUse.unknown | X | X | number | end of each hour | – |
| whUse.faucet | X | X | number | end of each hour | – |
| whUse.shower | X | X | number | end of each hour | – |
| whUse.bath | X | X | number | end of each hour | – |
| whUse.cwashr | X | X | number | end of each hour | – |
| whUse.dwashr | X | X | number | end of each hour | – |
| whUseTot[0] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| whUseTot[1] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| whUseTot[2] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| whUseTot[3] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| whUseTot[4] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| whUseTot[5] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| whUseTot[6] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| whUseTot[7] | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total hot water use by end use (at ws_tuse), gal |
| drawMaxDur | X | X | integer number | input time | Draw duration window, hr (user input, default 4) |
| drawMax | X | X | number | input time | Largest draw total in any conseq ws_drawmaxdur hrs, gal |
| loadMaxDur | X | X | integer number | input time | Load duration window, hr (user input, default 12) |
| loadMax | X | X | number | input time | Largest load total in any conseq ws_loadmaxdur hrs, btu |
| tSetpointDes | X | X | number | input time | Design (sizing) set point temp, f (constant) |
| tInletDes | X | X | number | input time | Design (sizing) cold water inlet temp, f |
| ashpTSrcDes | X | X | number | end of run (of each phase, autoSize or simulate) | Design (sizing) hpwh source air temperature, f |
| heatingCapDesTopN[0] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[1] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[2] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[3] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[4] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[5] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[6] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[7] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[8] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDesTopN[9] | X | X | number | end of run (of each phase, autoSize or simulate) | Top n design heating capacities |
| heatingCapDes | X | X | number | input time | Design heating capacity, btuh |
| volRunningDes | X | X | number | input time | Design running volume, gal |
| fxDes | X | X | number | input time | Dhw design excess size factor, default 1 |
| tUse | X | X | number | run start time (of each phase, autoSize or simulate) | Hot water use temp, f |
| tUseTest | X | X | number | subhourly | Current subhour test hot water use temp, f |
| tSetpoint | X | X | number | hourly | Dhwheater set point (for all dhwheaters using hpwh model), f |
| tSetpointLH | X | X | number | hourly | Dhwloopheater set point (for all child dhwloopheaters using hpwh model), f |
| drMethod | X | X | unrecognized | run start time (of each phase, autoSize or simulate) | Dhw demand response control method |
| drSignal | X | X | unrecognized | hourly | Dhw demand response control signal |
| targetSoC | X | X | number | hourly | Target state of charge (soc) |
| tOutPrimLT | X | X | number | end of each subhour | Primary water heater outlet temp, f |
| dayUsei | X | X | integer number | daily | Idx of dhwdayuse |
| dayUseName | X | X | string | daily | Name of dhwdayuse (resolved at runtime) |
| parElec | X | X | number | hourly | Electrical parasitic power, w |
| SDLM | X | X | number | input time | Standard distribution loss multiplier |
| DSM | X | X | number | input time | Distribution system multiplier (appe table re-2) |
| SSF | X | X | number | hourly | User input solar savings fraction |
| WF | X | X | number | hourly | Waste factor applied to ws_hwuse and dhwuses |
| drawsPerDay[0] | X | X | number | run start time (of each phase, autoSize or simulate) | – |
| drawsPerDay[1] | X | X | number | run start time (of each phase, autoSize or simulate) | – |
| drawsPerDay[2] | X | X | number | run start time (of each phase, autoSize or simulate) | – |
| drawsPerDay[3] | X | X | number | run start time (of each phase, autoSize or simulate) | – |
| drawsPerDay[4] | X | X | number | run start time (of each phase, autoSize or simulate) | – |
| drawsPerDay[5] | X | X | number | run start time (of each phase, autoSize or simulate) | – |
| drawDurF[0] | X | X | number | end of each hour | Water heater draw duration factors by end use |
| drawDurF[1] | X | X | number | end of each hour | Water heater draw duration factors by end use |
| drawDurF[2] | X | X | number | end of each hour | Water heater draw duration factors by end use |
| drawDurF[3] | X | X | number | end of each hour | Water heater draw duration factors by end use |
| drawDurF[4] | X | X | number | end of each hour | Water heater draw duration factors by end use |
| drawDurF[5] | X | X | number | end of each hour | Water heater draw duration factors by end use |
| branchModel | X | X | unrecognized | input time | Branch model selection |
| drawWaste[0] | X | X | number | hourly | Water waste per draw, gal |
| drawWaste[1] | X | X | number | hourly | Water waste per draw, gal |
| drawWaste[2] | X | X | number | hourly | Water waste per draw, gal |
| drawWaste[3] | X | X | number | hourly | Water waste per draw, gal |
| drawWaste[4] | X | X | number | hourly | Water waste per draw, gal |
| drawWaste[5] | X | X | number | hourly | Water waste per draw, gal |
| dayWasteDrawF[0] | X | X | number | input time | Relative draw for day waste scheme |
| dayWasteDrawF[1] | X | X | number | input time | Relative draw for day waste scheme |
| dayWasteDrawF[2] | X | X | number | input time | Relative draw for day waste scheme |
| dayWasteDrawF[3] | X | X | number | input time | Relative draw for day waste scheme |
| dayWasteDrawF[4] | X | X | number | input time | Relative draw for day waste scheme |
| dayWasteDrawF[5] | X | X | number | input time | Relative draw for day waste scheme |
| dayWasteVol | X | X | number | input time | Base daily total draw waste, gal/day |
| dayWasteBranchVolF | X | X | number | input time | Additional daily draw waste, discards/day |
| dayWaste | X | X | number | run start time (of each phase, autoSize or simulate) | Daily draw waste, gal/day |
| dayWasteScale | X | X | number | end of run (of each phase, autoSize or simulate) | – |
| childDHWSYSCount | X | X | number | run start time (of each phase, autoSize or simulate) | # of child dhwsyss iff central system (else 0) |
| whCount | X | X | number | run start time (of each phase, autoSize or simulate) | # of (primary) dhwheaters serving this dhwsys |
| wlhCount | X | X | number | run start time (of each phase, autoSize or simulate) | # of dhwloopheaters in this dhwsys |
| whCountUseTS | X | X | number | run start time (of each phase, autoSize or simulate) | # of dhwheaters serving this dhwsys that respond to ws_tsetpoint |
| wlhCountUseTS | X | X | number | run start time (of each phase, autoSize or simulate) | # of dhwloopheaters serving this dhwsys that respond to ws_tsetpointlh |
| loopSegTotals.count | X | X | number | run start time (of each phase, autoSize or simulate) | # of segments included in totals |
| loopSegTotals.len | X | X | number | run start time (of each phase, autoSize or simulate) | Length, ft |
| loopSegTotals.vol | X | X | number | run start time (of each phase, autoSize or simulate) | Volume, gal |
| loopSegTotals.exArea | X | X | number | run start time (of each phase, autoSize or simulate) | Outside surface area (at insulation surface), ft2 |
| loopSegTotals.UA | X | X | number | run start time (of each phase, autoSize or simulate) | Fluid-to-surround loss, btuh/f-hr |
| branchTotals.count | X | X | number | run start time (of each phase, autoSize or simulate) | # of segments included in totals |
| branchTotals.len | X | X | number | run start time (of each phase, autoSize or simulate) | Length, ft |
| branchTotals.vol | X | X | number | run start time (of each phase, autoSize or simulate) | Volume, gal |
| branchTotals.exArea | X | X | number | run start time (of each phase, autoSize or simulate) | Outside surface area (at insulation surface), ft2 |
| branchTotals.UA | X | X | number | run start time (of each phase, autoSize or simulate) | Fluid-to-surround loss, btuh/f-hr |
| fxCount[0] | X | X | integer number | run start time (of each phase, autoSize or simulate) | – |
| fxCount[1] | X | X | integer number | run start time (of each phase, autoSize or simulate) | – |
| fxCount[2] | X | X | integer number | run start time (of each phase, autoSize or simulate) | – |
| fxCount[3] | X | X | integer number | run start time (of each phase, autoSize or simulate) | – |
| fxCount[4] | X | X | integer number | run start time (of each phase, autoSize or simulate) | – |
| fxCount[5] | X | X | integer number | run start time (of each phase, autoSize or simulate) | – |
| loadShareDHWSYSi | X | X | integer number | input time | Index of dhwsys with which this dhwsys shares load |
| drawCSV | X | X | integer number | input time | Iff c_noyesch_yes, write tick-level draw data to |
| HHWO | X | X | number | end of each hour | Current total recovery load (at water heater), btu |
| DLM | X | X | number | end of each hour | Distribution loss multiplier (calc’d) |
| volRL | X | X | number | end of each hour | Current hour all-dhwloop return volume, gal |
| tRL | X | X | number | end of each hour | Current hour all-dhwloop return temp, f |
| HRBL | X | X | number | end of each hour | Current hour all-dhwloopbranch losses, btu |
| t24WL | X | X | number | end of each hour | Current hour all-dhwloopbranch waste loss volume, gal |
| t24WLTot | X | X | number | end of run (of each phase, autoSize or simulate) | Annual total ws_t24wl, gal |
| volCHDHW | X | X | number | end of each subhour | Current subhour all-rsys combined heat/dhw (chdhw) draw, gal |
| tRCHDHW | X | X | number | end of each subhour | Current subhour average combined heat/dhw (chdhw) return temp, f |
| CHDHWHtgFractSH | X | X | number | end of each subhour | Current subhour fraction of dhwsys output that |
| CHDHWHtgFractAvg | X | X | number | end of each subhour | Fraction of dhwsys output that supplied chdhw load(s) |
| HRDL | X | X | number | end of each hour | Current hour recirculation loss, btu |
| HJLsh | X | X | number | end of each subhour | Current subhour jacket losses (from dhwtanks), btu |
| HJL | X | X | number | end of each hour | Hour total jacket losses (from dhwtanks), btu |
| HARL | X | X | number | end of each hour | Hour total adjusted recovery load, btu |