Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.METSiS EKA HospitalMechanical Division Page 1

Air Handler #1 - FCU-17.13.017 - Summary Loads

ZnNo

DescriptionZone Peak Time

AreaPeopleVolume

Htg.LossHtg.L/s

L/s/Sqm

Sen.GainClg.L/s

L/s/Sqm

Lat.GainS.ExhW.Exh

Htg.O.A.Req.L/sAct.L/s

Clg.O.A.Req.L/sAct.L/s

116.25.041 OB-GYN Consultation3pm December

123

37

00

0.00

1,912153

12.43

49800

None00

None00

Zone Peak Totals:Total Zones: 1Unique Zones: 1

123

37

00

0.00

1,912153

12.43

49800

00

00

E:\TA1054 Eka Hospital\Eka Hospital Floor 16 (+12).CHV Sunday, July 05, 2015, 07:01 PM

Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.METSiS EKA HospitalMechanical Division Page 2

Air Handler #1 - FCU-17.13.017 - Total Load Summary Air Handler Description: FCU-17.13.017 Constant Volume - Sum of PeaksSupply Air Fan: Draw-Thru with program estimated horsepower of 0.15 kWFan Input: 75% motor and fan efficiency with 0.75 kPa across the fanSensible Heat Ratio: 0.82 --- This system occurs 1 time(s) in the building. ---

Air System Peak Time: 3pm in December. Outdoor Conditions: Clg: 33° DB, 30° WB, 26.19 grams moisture per kg dry air, Htg: 28° DBIndoor Conditions: Clg: 22° DB, 50% RH (avg.), Htg: 22° DB

Summer: Exhaust controls outside air, ----- Winter: Exhaust controls outside air.

Zone Space sensible loss: 0 WattsInfiltration sensible loss: 0 Watts 0 L/sOutside Air sensible loss: 0 Watts 0 L/sSupply Duct sensible loss: 0 WattsReturn Duct sensible loss: 0 WattsReturn Plenum sensible loss: 0 WattsTotal System sensible loss: 0 Watts

Heating Supply Air: 0 / (1.000 X 1.21 X 0) = 0 L/sWinter Vent Outside Air (0.0% of supply) = 0 L/s

Zone space sensible gain: 1,834 WattsInfiltration sensible gain: 78 WattsDraw-thru fan sensible gain: 152 WattsSupply duct sensible gain: 209 WattsReserve sensible gain: 0 WattsTotal sensible gain on supply side of coil: 2,273 Watts

Cooling Supply Air: 2,273 / (1.000 X 1.23 X 12) = 153 L/sSummer Vent Outside Air (0.0% of supply) = 0 L/s

Return duct sensible gain: 79 WattsReturn plenum sensible gain: 0 WattsOutside air sensible gain: 0 Watts 0 L/sBlow-thru fan sensible gain: 0 WattsTotal sensible gain on return side of coil: 79 WattsTotal sensible gain on air handling system: 2,352 Watts

Zone space latent gain: 198 WattsInfiltration latent gain: 300 WattsOutside air latent gain: 0 WattsTotal latent gain on air handling system: 498 WattsTotal system sensible and latent gain: 2,850 Watts

Check FiguresTotal Air Handler Supply Air (based on a 12° TD): 153 L/sTotal Air Handler Vent. Air (0.00% of Supply): 0 L/s

Total Conditioned Air Space: 12 Sq.mSupply Air Per Unit Area: 12.4230 L/s/Sq.mArea Per Cooling Capacity: 4.3159 Sq.m/kW 15.2 Sq.m/TonCooling Capacity Per Area: 0.2317 kW/Sq.m 0.0659 Tons/Sq.mHeating Capacity Per Area: 0.00 Watts/Sq.m

Total Heating Required With Outside Air: 0.00 kWTotal Cooling With Outside Air: 2.85 kW 0.81 Tons

E:\TA1054 Eka Hospital\Eka Hospital Floor 16 (+12).CHV Sunday, July 05, 2015, 07:01 PM

Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.METSiS EKA HospitalMechanical Division Page 3

Zone Detailed Loads (At Zone Peak Times)

LoadDescription

UnitQuan

-SC-CFAC

CLTDSHGF

U.Fac-CLF-

Sen.Gain

Lat.Gain

Htg.Mult.

Htg.Loss

Zone 1-16.25.041 OB-GYN Consultation peaks (sensible) in December at 3pm, Air Handler 1 (FCU-17.13.017), Group 1, 1.0 x 12.3, Construction Type: 1 (Light), SIDB: 22°C, WIDB: 22°C

Partition-1-5 12.3 6/0 2.660 196 0.000 0Lights-Prof=1 246 1.000 246Equipment-Prof=4 1,000 1.000 1,000 0People-Prof=4 3.0 1.000 225 180Cool. Infil.AC/hr 5 71 273Heat. Infil.AC/hr 0 0.000 0

Sub-total 1,739 453 0Safety factors: +10%

---------+10%

---------+0%

---------Total w/ safety factors: 1,912 498 0

E:\TA1054 Eka Hospital\Eka Hospital Floor 16 (+12).CHV Sunday, July 05, 2015, 07:01 PM

Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.METSiS EKA HospitalMechanical Division Page 4

Air System #1 (FCU-17.13.017) Psychrometric Analysis

System Load Analysis Latent Grams Sensible Temp L/sLeaving Coil Condition 7.142 9.907Draw-Thru Fan 152 0.810 10Misc Load on Supply Side 0 0.000 0Supply Air Duct 209 1.110 14Zone Loads 498 1.101 1,912 10.176 129Sensible Reserve 0 0.000 0

Zone Condition 498 8.243 2,273 22.000 153Return Air Duct 79 0.420Return Air Plenum 0 0.000Misc Load on Return Side 0 0.000Vent Air 0 L/s 0 0.000 0 0.000Blow-Thru Fan 0 0.000

Entering Coil Condition 498 8.243 2,352 22.420 153

General Psychrometric Equations Used In Analysis:PR = (Barometric pressure of site / Standard ASHRAE pressure of 1010.387)TSH = PR x 1.23 x L/s x (DB entering - DB leaving)TLH = PR x 2.96 x L/s x (g/kg entering - g/kg leaving)GTH = PR x 1.20 x L/s x (Enthalpy entering - Enthalpy leaving) TSH = 1.000 x 1.23 x 153 x ( 22.420 - 9.907 ) = 2,352 WattsTLH = 1.000 x 2.96 x 153 x ( 8.243 - 7.142 ) = 498 Watts

----------SUM = 2,849 WattsGTH = 1.000 x 1.20 x 153 x ( 43.577 - 28.038 ) = 2,849 WattsTotal System Load = 2,850 Watts

Chilled and Hot Water Flow Rates and Steam RequirementCooling L/s = 2,849 / ( 5.60 x 4,179 ) = 0.1 L/sHeating L/s = 0 / ( 0.00 x 4,179 ) = 0.0 L/sSteam Req. = 0 / 970 = 0.00 kg./hr

Entering Cooling Coil Conditions Entering Heating Coil ConditionsDry bulb temperature: 22.42 Dry bulb temperature: 22.00Wet bulb temperature: 15.59Relative humidity: 48.89Enthalpy: 43.58 kJ/kg

Leaving Cooling Coil Conditions Leaving Heating Coil ConditionsDry bulb temperature: 9.91 Dry bulb temperature: 22.00Wet bulb temperature: 9.43Relative humidity: 94.00Enthalpy: 28.04 kJ/kg

E:\TA1054 Eka Hospital\Eka Hospital Floor 16 (+12).CHV Sunday, July 05, 2015, 07:01 PM