| Waterside (Radiant Cooling): (1/COP_CHPRE – 1/COP_CHPOST)*QBLDGRAD* OPHR,yr
Where (COP_CHPOST – COP_CHPRE)/ COP_CHPRE = 1.25% per 1°C increase of TCHWS
COP_CHPOST = [1.25%*(TCHWSPOST – TCHWSPRE) + 1]*COP_CHPRE
COP_CH = 0.605*COP_CHSM + 0.395*COP_CHWN
COP_CHSM = (COPaSM + COPbSM)/2; COP_CHWN = (COPaWN + COPbWN)/2
QBLDG = 0.605*[0.77*(0.88*NCHSM*QCHSM + 0.12*NCHWN*QCHWN)] + 0.395*[0.596*(0.184*NCHSM*QCHSM + 0.816*NCHSM*QCHSM)]
QBLDGRAD = x%*QBLDG
Airside AHUàDAHS: (SkW_AHUPRE – SkW_DAHSPOST) * OPHR,yr
Airside PAU à DOAS: (SkW_PAUPRE – SkW_DOASPOST) * OPHR,yr
Where SkW_AHUPRE = (0.605*LFSM,PRE + 0.395*LFWN,PRE)*NAHUPRE*kW_AHUPRE
SkW_PAUPRE = (0.605*LFSM,PRE + 0.395*LFWN,PRE)*NPAUPRE*kW_PAUPRE
SkW_DAHSPOST = (0.605*LFSM,POST + 0.395*LFWN,POST)*NDAHSPOST*kW_DAHSPOST
SkW_DOASPOST = (0.605*LFSM,POST + 0.395*LFWN,POST)*NDOASPOST*kW_DOASPOST
For CSD: LFSM = LFWN = 1,
For VSD: LFSM = 0.795, LFWN = 0.562;
For EC or DC-motor: LFSM = 0.71, LFWN = 0.38
OPHR,yr = hr/day*day/wk*52
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