commercial cooling load calculation
DESCRIPTION
HVAC calculationsTRANSCRIPT
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COMMERCIAL COOLING LOAD CALCULATION
Project Bldg./Room Location CALAFONNIA Engrs. Calc. by Chk. By
DB WB RH WF F % gr/lb Daily Range 33 F Ave. 84 F
Outdoor 100 69 101 Day 21-JulRoom 78 50 66 Lat. 39N
Conduction Dir. Color U A, ft2 CLTD, FGross Net Table Corr.
Glass
W 0.94 120 14 13 1466
Wall
Gro
up E
NSE DARKW 0.28 300 180 20 19 958
Roof/Ceiling 0Floor 0Partition 0Door 0
=
RSH
R =
RSC
L/R
TCL
=
RSC
L
.
1.1x
(Tr-T
sa)
Solar Dir Sh. SHGF A SC CLF
Glass
W 216 120 0.81 0.72 15116
Lights 2400 x W x 3.41 1.25 BF x CLF 10230Lights x W x 3.41 BF x CLF LCL
People 250 SHG x 10 n x CLF 2500 BTU/hr200 LHG x 10 n 2000
EquipmentEquipment
Infiltration 1.1 x 150 CFM x 22 TC 36300.68 x 150 CFM x 40 gr/lb 4080
SubtotalSA duct gain
SA duct leakageTotal CL
SA fan gain (draw through) BTU/hrRoom/Building Cooling Load, 39980
SA fan gain (blow through)Infiltration 1.1 x CFM x TC
0.68 x CFM x gr/lb
RA duct gainRA fan gain Cooling Coil Load
Refrigeration LoadPump gain
SCL BTU/hr
CFM
sa =
-
COMMERCIAL COOLING LOAD CALCULATION
Project Superb SuperMarket Bldg./Room Single Story Building with a BasementLocation Ohio, Clumbus Engrs. Haroon Sab Calc. by MA Javaid Chk. By Haroon Sab
DB WB RH WF F % gr/lb Daily Range 19 F Ave. 81 F
Outdoor 90 77 Day 21-JulRoom 76 Lat. 40
Conduction Dir. Color U A, ft2 CLTD, FGross Net Table Corr.
Glass
W 1.01 - 830 13 11 9221W 1.01 - 42 13 11 467E 1.01 - 42 13 11 467
Wall
Gro
up B
W D 0.11 1260 388 17 15 640E D 0.11 - 1176 26 24 3105N D 0.11 - 840 11 9 832S D 0.11 - 840 17 16 1478
Roof/Ceiling - D 0.09 - 5400 36 35 17010Floor - D 0.35 - 5400 - 9 17010Partition - - - - - - - -Door E D 0.39 - 42 - 24 393
=
RSH
R =
RSC
L/R
TCL
=
RSC
L
.
1.1x
(Tr-T
sa)
Solar Dir Sh. SHGF A SC CLF
Glass
W no 216 42 0.94 0.71 6055W no 216 830 0.69 0.71 87829E no 216 42 0.94 0.19 1620
Lights 16200 x W x 3.41 1.2 BF x 1 CLF 66290Lights x W x 3.41 BF x CLF LCL
People 250 SHG x 60 n x 1 CLF 15000 BTU/hr200 LHG x 60 n 12000
EquipmentEquipment
Infiltration 1.1 x CFM x TC0.68 x CFM x gr/lb
SubtotalSA duct gain
SA duct leakageTotal CL
SA fan gain (draw through) BTU/hrRoom/Building Cooling Load,
SA fan gain (blow through)Infiltration 1.1 x CFM x TC
0.68 x CFM x gr/lb
RA duct gainRA fan gain Cooling Coil Load
Refrigeration LoadPump gain
SCL BTU/hr
CFM
sa =
-
COMMERCIAL COOLING LOAD CALCULATION
Project Peak Cooling Load Bldg./Room General OfficeLocation Sacramento, California Engrs. Haroon Sab Calc. by M.A Javaid
DB WB RH WF F % gr/lb Daily Range
Outdoor 83 Day Room 78 50 Lat.
Conduction Dir. Color U A, ft2 CLTD, FGross Net Table Corr.
Glass
W - 0.81 - 120 9 7- - - - - - -- - - - - - -- - - - - - -
Wall
Gro
up E
W D 0.28 300 180 9 7E D 0.28 300 300 - 2- - - - - - -- - - - - - -
Roof/Ceiling - - - - - - -Floor - - - - - - -Partition - - - - - - -Door - - - - - - -
- - - - - - -- - - - - - -
Solar Dir Sh. SHGF A SC CLF
Glass
W D 216 - 120 0.17- - - - - -- - - - - -- - - - - -- - - - - -
Lights 2400 x W x 3.41 1.25 BF x 1 CLFLights x W x 3.41 BF x CLF
People 250 SHG x 10 n x 1 CLF200 LHG x 10 n
EquipmentEquipment
Infiltration 1.1 x CFM x TC0.68 x CFM x gr/lb
SubtotalSA duct gain
SA duct leakage
SA fan gain (draw through)Room/Building Cooling Load,
SA fan gain (blow through)Infiltration 1.1 x CFM x TC
-
0.68 x CFM x gr/lb
RA duct gainRA fan gain Cooling Coil Load
Refrigeration LoadPump gain
-
COMMERCIAL COOLING LOAD CALCULATION
Chk. By Haroob Sab
33 F Ave. 83 F7/21/2007, at 1200 hr
39
680
353168
=
RSH
R =
RSC
L/R
TCL
=
RSC
L
.
1.1x
(Tr-T
sa)
4406
10230LCL
2500 BTU/hr2000
Subtotal
Total CLBTU/hr
Room/Building Cooling Load,
SCL BTU/hr
CFM
sa =
-
Cooling Coil Load
Refrigeration Load
ChartExample 6.17Problem 6.10