• The airflow circulation path should not be obstructed. Chilled fins can be used to provide extra sensible cooling or the space.

Waterside (Radiant Cooling): (1/COP_CH_PRE – 1/COP_CH_POST)*QBLDG_RAD* OPHR,yr

Where  (COP_CH_POST – COP_CH_PRE)/ COP_CH_PRE = 1.25% per 1°C increase of TCHWS

COP_CH_POST = [1.25%*(TCHWS_POST – TCHWS_PRE) + 1]*COP_CH_PRE

COP_CH = 0.605*COP_CH_SM + 0.395*COP_CH_WN

COP_CH_SM = (COPa_SM + COPb_SM)/2; COP_CH_WN = (COPa_WN + COPb_WN)/2

QBLDG = 0.605*[0.77*(0.88*NCH_SM*QCH_SM + 0.12*NCH_WN*QCH_WN)] + 0.395*[0.596*(0.184*NCH_SM*QCH_SM + 0.816*NCH_SM*QCH_SM)]

QBLDG_RAD = x%*QBLDG

Airside (AHU à DOAS+HVLP fan  w/ chilled fin):

(SkW_AHU_PRE  – SkW_DOAS_POST +(SkW_HVLPF_PRE) * OPHR,yr

SkW_AHU_PRE = (0.605*LF_SM,PRE + 0.395*LF_WN,PRE)*NAHU_PRE*kW_AHU_PRE

SkW_DOAS_POST = (0.605*LF_SM,POST + 0.395*LF_WN,POST)*NDOAS_POST*kW_DOAS_POST

SkW_HVLPF_POST = (0.605*LF_SM,POST + 0.395*LF_WN,POST)*NHVLPF_POST*kW_HVLPF_POST

For CSD: LF_SM = LF_WN = 1,

For VSD: LF_SM = 0.795, LF_WN = 0.562;

For EC or DC-motor: LF_SM = 0.71, LF_WN = 0.38

OPHR,yr = hr/day*day/wk*52

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