| hpSched |
OFFAVAILONVC |
Start of hour |
hourly choice of OFF, AVAIL (default; plant runs on demand), or ON (at least 1st stage runs). |
| hpPipeLossF |
number |
Start of phase |
- pipe loss, default .01, fraction of largest stage boiler capac whenever any boiler running
- heatplant user inputs: staging: 7 arrays, each of up to 7 boiler subscripts, or TI_ALL, or TI_ALLBUT and up to 6 subscripts
|
| hpStage1[index] |
TI Array [8] |
Start of phase |
defaulted by code, if NO hpStage values entered: |
| hpStage2[index] |
TI Array [8] |
Start of phase |
defaulted by code, if NO hpStage values entered: |
| hpStage3[index] |
TI Array [8] |
Start of phase |
... stage 1: TI_ALL. stages 2-7: none (0). |
| hpStage4[index] |
TI Array [8] |
Start of phase |
... stage 1: TI_ALL. stages 2-7: none (0). |
| hpStage5[index] |
TI Array [8] |
Start of phase |
|
| hpStage6[index] |
TI Array [8] |
Start of phase |
|
| hpStage7[index] |
TI Array [8] |
Start of phase |
- CAUTION: code may access stages by subscripting, assuming they follow hpStage1 in order.
- CAUTION: code uses internal subscript values 0-6 to access variables named hpStage1-7.
- heatplant setup time
|
| blr1 |
TI |
Start of run |
subscript of 1st BOILER for this HEATPLANT. Next is BOILER.nxBlr4hp. |
| tu1 |
TI |
Start of run |
subscript of 1st TU with HW coil served by this HEATPLANT. Next is TU.tuhc.nxTu4hp. |
| ah1 |
TI |
Start of run |
subscript of 1st AH with HW coil served by this HEATPLANT. Next is AH.ahhc.nxAh4hp. |
| hl1 |
TI |
Start of run |
subscript of 1st HPLOOP with HX for this HEATPLANT |
| qPipeLoss |
DBL |
Start of run |
- POWER
- pipe loss power: [hpPipeLossF][hppipelossf] * capStg[stgMxQ]
|
| stgCap[index] |
DBL Array [7] |
Start of run |
- POWER
- max power output of stages 0-6: boiler caps + pump heats.
|
| stgPQ[index] |
DBL Array [7] |
Start of run |
- POWER
- pump heats of stages 0-6.
|
| stgN |
number |
Start of run |
max+1 used stage subscript 1-7 (used stages need not be contiguous) |
| stgMxQ |
number |
Start of run |
- most powerful stage subscript 0-6
- heatplant runtime
|
| hpClf |
BOO |
End of subhour |
call-flag: set nz if must call hpCompute so it can test tr, etc to see if computation needed. |
| hpPtf |
BOO |
End of subhour |
compute-flag: set if must call hpCompute and it should unconditionally recompute this plant. |
| hpMode |
choice:OFFON |
End of subhour |
mode this subhour: off or on: per hpSched; per demand for AVAIL. Set in hpEstimate, hpCompute. |
| capF |
DBL |
End of subhour |
- FRAC
- 1.0 or, when overloaded, derating fraction for capacity of each coil/hx.
|
| stgi |
number |
End of subhour |
- stage in use, 0-6 for hpStage1-7.
- for heatplant loop temp is not simulated; plant output and coil load q are always same and same variable used.
|
| qNx |
DBL |
End of subhour |
- POWER
- latest coil/hx load, copied to .q at decision to compute, else may remain slightly different.
|
| q |
DBL |
End of subhour |
- POWER
- current output, total from boilers & boiler pumps === total load of connected coils & hx's.
- autoSizing
|
| qPk |
number |
End of subhour |
peak load re error autosizing overload message |
| qPkAs |
number |
End of subhour |
- peak load on a converged autoSizing design day re error autosizing overload message
- prior values for runtime change-detection
|
| hpModePr |
choice:OFFON |
End of subhour |
|
| qPr |
number |
End of subhour |
|
| capFPr |
number |
End of subhour |
|