CSE User's Manual

California Simulation Engine

6.21 DHWSolarSys


elecMtriXXinteger numberinput timeMeter for pump and parasitic electricity use
endUseXXinteger numberinput timeEnd use of pump energy. defaults to “dhw”
parElecXXnumberhourlyParasitic electricity use, w
scAreaTotXXnumberrun start time (of each phase, autoSize or simulate)Total of child dhwsolarcollectors, ft2
scCountXXnumberrun start time (of each phase, autoSize or simulate)# of child dhwsolarcollectors (not necessarily # of panels)
tank.tExXXnumberend of each subhour
tank.tASHPSrcXXnumberend of each subhour
tank.fMixUseXXnumberend of each subhour
tank.fMixRLXXnumberend of each subhour
tank.inElec[0]XXnumberend of each subhour
tank.inElec[1]XXnumberend of each subhour
tank.heatAdded[0]XXnumberend of each subhour
tank.heatAdded[1]XXnumberend of each subhour
tank.tOutXXnumberend of each subhour
tank.tOutCHDHWXXnumberend of each subhour
tank.HPWHxBUXXnumberend of each subhour
tank.qEnvXXnumberend of each subhour
tank.qLossXXnumberend of each subhour
tank.qHWXXnumberend of each subhour
tank.qTXXXnumberend of each subhour
tank.tankHCNominalXXnumberend of each subhour
tank.tankHCBegXXnumberend of each subhour
tank.tankHCEndXXnumberend of each subhour
tank.tHWOutFXXnumberend of each subhour
tank.tHWOutXXnumberend of each subhour
tank.qBalXXnumberend of each subhour
tank.balErrMaxXXnumberend of each subhour
tankVolXXnumberrun start time (of each phase, autoSize or simulate)Tank volume, gal
tankUAXXnumberrun start time (of each phase, autoSize or simulate)Tank water-to-air ua, btuh/f
tankInsulRXXnumberrun start time (of each phase, autoSize or simulate)Total tank insulation resistance, hr-f/btuh
tankZnTiXXinteger numberinput timeTank location zone re tank loss
tankTExXXnumberhourlySurrounding temperature, f for tank loss
tankTAvgXXnumberend of each hourHour average tank temp, f (check figure)
tankQLossXXnumberend of each hourCurrent hour’s total tank loss, btu
tankHXEffXXnumberhourlyTank heat exchanger effectiveness
tankTHxLimitXXnumberinput timeTank temp limit, f; collector heat
tickVolXXnumberend of each subhourCurrent tick draw to dhwsyss, gal
tickVolTXXnumberend of each subhourCurrent tick (vol * inlet temp), gal-f
tickTankTOutletXXnumberend of each subhourCurrent tick tank outlet temp
drawVolXXnumberend of each hourCurrent hour total draw, gal
tankQGainXXnumberend of each hourCurrent hour total gain from solar hx (all collectors), btu
tankQGainTotXXnumberend of run (of each phase, autoSize or simulate)Sw_tankqgain annual total, btu
tankTInletXXnumberend of each hourTank inlet temperature, f
tankTOutletXXnumberend of each hourCurrent hour average tank outlet temperature, f
tankTHxXXnumberend of each hourNominal tank heat exchange temp, f
totOutXXnumberend of each hourCurrent hour total dhwsolarsys output, btu
scFluidSpHtXXnumberinput timeCollector working fluid specific heat, btu/lbm-f
scFluidDensXXnumberinput timeCollector working fluid density, lb/ft3
scFluidVHCXXnumberrun start time (of each phase, autoSize or simulate)Collector working fluid volumetric heat capacity, btu/gal-f
scTInletXXnumberend of each hourMixed collector inlet temperature, f
scTOutletXXnumberend of each hourMixed collector outlet temperature, f
overHeatHrCountXXinteger numberend of run (of each phase, autoSize or simulate)Number of hours during which collector did not
SSFAnnualXXnumberend of run (of each phase, autoSize or simulate)Annual solar savings fraction