HomeMy WebLinkAboutSLCSO Visitation Building Heat LoadSLCSO Visitation Building
HVAC Load Analysis
for
St. Lucie County Sheriffs Dept.
900 North Rock Road
Fort Pierce, Florida
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CHVACCOMM, MCIAL.
HVAC LoAiDs
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using a SHA-1 authentication Date: 2020.11.1 1
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Prepared By:
Eric J. Svoboda, PE
Fort Pierce Engineering, Inc.
315 South 7th Street
Fort Pierce, FL 34950
772-672-4636
Thursday, October 29, 2020
Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.
Fort Pierce Enqineerinq ASLCSO Visitation Buildinq
Fort Pierce, FL 34950 Page 2
General Project Data Input
General Project Information
Project file name:
SLCSO Visitation Building Heat Load.CH8
Project title:
SLCSO Visitation Building
Designed by:
Eric J. Svoboda, PE
Project date:
Monday, July 07, 2008
Weather reference city:
FORT PIERCE, FLORIDA, USA
Client name:
St. Lucie County Sheriffs Dept.
Client address:
900 North Rock Road
Client city:
Fort Pierce, Florida
Company name:
Fort Pierce Engineering, Inc.
Company representative:
Eric J. Svoboda, PE
Company address:
315 South 7th Street
Company city:
Fort Pierce, FL 34950
Company phone:
772-672-4636
Company fax:
772-672-4637
Barometric pressure: 29.894 in.Hg.
Altitude: 25 feet
Latitude: 27 Degrees
Mean daily temperature range: 15 Degrees
Starting & ending time for HVAC load calculations: 7am - 10pm
Number of unique rooms in this project: 13
Building Default Values
Calculations performed:
Both heating and cooling loads
Lighting requirements:
2.00
Watts per square foot
Equipment requirements:
1.00
Watts per square foot
People sensible load multiplier:
250
Btuh per person
People latent load multiplier:
200
Btuh per person
Room sensible safety factor:
0
%
Room latent safety factor:
0
%
Room heating safety factor:
0
%
People diversity factor:
100
%
Lighting profile number:
0
Equipment profile number:
0
People profile number:
0
Building default ceiling height:
9.00
feet
Building default wall height:
12.00
feet
Internal Operatina
Load Profiles C = 100
hr
hr
hr
hr
hr
hr
hr
hr
hr
hr
I hr
hr
hr
hr
hr
hr
hr
hr
hr
hr
hr
hr
hr
hr
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
c
c
c
c
C
C
c
c
c
c
C
C
C
c
c
c
c
C
C
C
c
c
C
c
2
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
3
C
c
c
C
C
C
c
C
c
c
c
C
C
C
c
c
c
C
C
C
C
C
C
C
4
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
5
C
C
c
c
C
C
C
C
C
c
c
c
C
C
C
c
c
C
C
C
C
C
C
c
6
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
7
C
C
c
c
C
C
C
C
C
C
C
C
C
C
C
C
c
C
C
C
C
C
C
C
8
c
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c
c
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C
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C
C
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C
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C
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9
C
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C
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C
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C
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C
C
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C
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10
C
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Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Enqineerinq
SLCSO Visitation Buildinq
Fort Pierce FL 34950
Page 3
General Pro "ect Data Input cont'd
Building -Level Design Conditions
Design
Outdoor Outdoor
Indoor Indoor
Grains In/Outdoor
Month
Dry Bulb Wet Bulb
Rel.Hum Dry Bulb
Diff Correction
August
95 80
50% 75
66.33 6
Winter
42
75
Master Roofs
Roof
ASHRAE
Roof
Dark Susp.
No.
Roof#
U-Fac
Color Ceil
1
1
0.050
No No
Roof #1 Description:
Metal Roof, R-20
Master Walls
Wall
ASHRAE
Wall
Wall
No.
Group
U-Fac
Color
1
C
0.095
D
Wall #1 Description:
Block wall, 8" sand & gravel, hollow
core, siding exterior, interior finish,
1" extruded poly, R-5.0
Master Partitions
Partition
Partition
Cool
Heat
No.
U-Factor
T-D
T-D
1
0.095
10
10
Partition #1 Description: Block partition, 8" sand & gravel,
hollow core, siding exterior, interior finish, 1" extruded poly, R-
5.0
Master Glass
Glass
Summer Winter
Glass
Interior Interior
No.
U-Factor U-Factor
Shd.Coef.
Shading Shd.Coef
1
0.810 0.830
1.000
1 0.550
Glass #1 Description:
Default Glass
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation
Program
Elite Software Development, Inc.
Fort Pierce Enqineerinq
SLCSO Visitation Buildinq
Fort Pierce FL 34950
Pa e 4
Building Summmy
Loads
Building peaks in August at 3pm.
tBldg Load
Area
Sen
%Tot Lat
Sen
Net
%Net
escri tions
Quan
Loss
Loss Gain
Gain
Gain
Gain
Roof
6,732
11,108
18.29
0
14,747
14,747
8.27
Wall
3,720
11,662
19.20
0
7,320
7,320
4.11
Glass
96
2,629
4.33
0
3,748
3,748
2.10
Floor Slab
318
6,506
10.71
0
0
0
0.00
Skin Loads
31,906
52.53
0
25,815
25,815
14.48
Lighting
13,464
0
0.00
0
45,941
45,941
25.78
Equipment
6,732
0
0.00
0
22,971
22,971
12.89
Pool Latent
0
0
0.00
0
0
0
0.00
People
63
0
0.00 12,600
15,750
28,350
15.91
Partition
360
342
0.56
0
342
342
0.19
Cool. Pret.
0
0
0.00
0
0
0
0.00
Heat. Pret.
0
0
0.00
0
0
0
0.00
Cool. Vent.
800
0
0.00 36,054
17,584
53,638
30.09
Heat. Vent.
800
28,486
46.90
0
0
0
0.00
Cool.lnfil.
0
0
0.00
0
0
0
0.00
Heat.lnfil.
0
0
0.00
0
0
0
0.00
Draw-Thru Fan
0
0
0.00
0
1,175
1,175
0.66
Blow-Thru Fan
0
0
0.00
0
0
0
0.00
Reserve Cap.
0
0
0.00
0
0
0
0.00
Reheat Cap.
0
0
0.00
0
0
0
0.00
Supply Duct
0
0
0.00
0
0
0
0.00
Return Duct
0
0
0.00
0
0
0
0.00
Misc. Supply
0
0
0.00
0
0
0
0.00
Misc. Return
0
0
0.00
0
0
0
0.00
Building Totals
60,734
100.00 48,654
129,578
178,232
100.00
Building
Sen
%Tot
Lat
Sen
Net
%Net
Summary
Loss
Loss
Gain
Gain
Gain
Gain
Ventilation
28,486
46.90
36,054
17,584
53,638
30.09
Infiltration
0
0.00
0
0
0
0.00
Pretreated Air
0
0.00
0
0
0
0.00
Room Loads
32,248
53.10
12,600
110,819
123,419
69.25
Plenum Loads
0
0.00
0
0
0
0.00
Fan/Duct/Misc Loads
0
0.00
0
1,175
1,175
0.66
Building Totals
60,734
100.00
48,654
129,578
178,232
100.00
Check Figures
Total Building Supply Air (based on a 21 °
TD):
4,910
CFM
Total Building Vent. Air (16.29%
of Supply):
800
CFM
Total Conditioned Air Space:
6,732
Sq.ft
Supply Air Per Unit Area:
0.7293
CFM/Sq.ft
Area Per Cooling Capacity:
453.3
Sq.ft/Ton
Cooling Capacity Per Area:
0.0022
Tons/Sq.ft
Heating Capacity Per Area:
9.02
Btuh/Sq.ft
Total Heating Required With Outside Air:
60,734
Btuh
Total Cooling Required With Outside Air:
14.85
Tons
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.
Fort Pierce Engineerinq ASLCSO Visitation Buildinq
Fort Pierce FL 34950 Pa e 5
Air Handier #1 - AHU 1 - Summa
Loads
Rm
Description
Area
Htg.Loss
Sen.Gain
Lat.Gain
Htg.O.A.
Clg.O.A.
No
Room Peak Time
People
Htg.CFM
Clg.CFM
S.Exh
Req.CFM
Req.CFM
Volume
CFM/S ft
CFM/S ft
W.Exh
Act.CFM
Act.CFM
1
Lobby
750
6,991
19,301
2,000
Direct
Direct
9am August
10
324
814
0
115
115
6,750
0.43
1.09
0
176
143
2
RR 1
56
637
1,335
200
Direct
Direct
3pm August
1
30
56
0
9
9
504
0.53
1.01
0
16
10
3
RR 2
56
172
1,029
200
Direct
Direct
2pm August
1
8
43
0
9
9
504
0.14
0.77
0
4
8
4
RR 3
56
172
1,029
200
Direct
Direct
2pm August
1
8
43
0
9
9
504
0.14
0.77
0
4
8
5
North Office
230
482
3,472
400
Direct
Direct
2pm August
2
22
146
0
35
35
2,070
0.10
0.64
0
12
26
6
Reception
270
446
3,869
400
Direct
Direct
2pm August
2
21
163
0
42
42
2,430
0.08
0.60
0
11
29
7
Hall
36
59
699
200
Direct
Direct
2pm August
1
3
29
0
6
6
324
0.08
0.82
0
1
5
8
South Office
170
977
2,911
400
Direct
Direct
4pm August
2
45
123
0
26
26
1,530
0.27
0.72
0
25
22
Room Peak Totals:
1,624
9,937
33,644
4,000
Total Rooms: 8
20
460
1,419
0
250
250
Unique Rooms: 8
14,616
0.28
0.87
0
250
250
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Engineerinq
ASLCSO
Visitation Buildinq
Fort Pierce FL 34950
Pa e 6
Air Handler #1 - AHU 1 - Total Load Summa
Air Handler Description: AHU 1 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of
0.13 HP
Fan Input: 0% motor and fan efficiency with 0 in. water
across the fan
Sensible Heat Ratio: 0.89
--- This system occurs
1 time(s) in the building. ---
Air System Peak Time: 3pm in August.
Outdoor Conditions: Clg: 95' DB, 80' WB, 131.03 grains, Htg:
42' DB
Indoor Conditions: Clg: 75' DB, 50% RH, Htg: 75° DB
Because of the diversity in room, plenum and ventilation loads, the room
sensible
peak time
in August at gam is different
from the total system peak time, hence the air system CFM was computed using a room sensible load of 32,415.
Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air.
Room Space sensible loss: 9,937 Btuh
Infiltration sensible loss: 0 Btuh
0
CFM
Outside Air sensible loss: 8,902 Btuh
250
CFM
Supply Duct sensible loss: 0 Btuh
Return Duct sensible loss: 0 Btuh
Return Plenum sensible loss: 0 Btuh
Total System sensible loss:
18,839 Btuh
Heating Supply Air: 9,937 / (.999 X 1.08 X 20) =
460
CFM
Winter Vent Outside Air (54.3% of supply) =
250
CFM
Room space sensible gain: 31,153 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 340 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil:
31,493 Btuh
Cooling Supply Air: 32,754 / (.999 X 1.1 X 21) =
1,419
CFM
Summer Vent Outside Air (17.6% of supply) =
250
CFM
Return duct sensible gain: 0 Btuh
Return plenum sensible gain: 0 Btuh
Outside air sensible gain: 5,495 Btuh
250
CFM
Blow-thru fan sensible gain: 0 Btuh
Total sensible gain on return side of coil:
5,495 Btuh
Total sensible gain on air handling system:
36,988 Btuh
Room space latent gain: 4,000 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 11,267 Btuh
Total latent gain on air handling system:
15,267 Btuh
Total system sensible and latent gain:
52,255 Btuh
Check Figures
Total Air Handler Supply Air (based on a 21 ° TD):
1,419
CFM
Total Air Handler Vent. Air (17.62% of Supply):
250
CFM
Total Conditioned Air Space:
1,624
Sq.ft
Supply Air Per Unit Area:
0.8739
CFM/Sq.ft
Area Per Cooling Capacity:
372.9
Sq.ft/Ton
Cooling Capacity Per Area:
0.0027
Tons/Sq.ft
Heating Capacity Per Area:
11.60
Btuh/Sq.ft
Total Heating Required With Outside Air:
18,839
Btuh
Total Cooling Required With Outside Air:
4.35
Tons
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Engineerinq
ASLCSO
Visitation Buildinq
Fort Pierce FL 34950
Pa e 7
Air Handler #2 - AHU 2 - Summary
Loads
Rm Description
Area
Htg.Loss
Sen.Gain
Lat.Gain
Htg.O.A.
Clg.O.A.
No Room Peak Time
People
Htg.CFM
Clg.CFM
S.Exh
Req.CFM
Req.CFM
Volume
CFM/Sgft
CFM/Sgft
W.Exh
Act.CFM
Act.CFM
9 Visitation
1,960
7,533
31,494
4,000
Direct
Direct
2pm August
20
349
1,379
0
250
250
17,640
0.18
0.70
0
250
250
Room Peak Totals:
1,960
7,533
31,494
4,000
Total Rooms: 1
20
349
1,379
0
250
250
Unique Rooms: 1
17,640
0.18
0.70
0
250
250
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Engineerinq
ASLCSO
Visitation Buildinq
Fort Pierce FL 34950
Pa e 8
Air Handler #2 - AHU 2 - Total Load Summa
Air Handler Description: AHU 2 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of
0.13 HP
Fan Input: 0% motor and fan efficiency with 0 in. water
across the fan
Sensible Heat Ratio: 0.89
--- This system occurs
1 time(s) in the building. ---
Air System Peak Time: 2pm in August.
Outdoor Conditions: Clg: 95' DB, 80' WB, 131.77 grains, Htg:
42' DB
Indoor Conditions: Clg: 75' DB, 50% RH, Htg: 75° DB
Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air.
Room Space sensible loss: 7,533 Btuh
Infiltration sensible loss: 0 Btuh
0
CFM
Outside Air sensible loss: 8,902 Btuh
250
CFM
Supply Duct sensible loss: 0 Btuh
Return Duct sensible loss: 0 Btuh
Return Plenum sensible loss: 0 Btuh
Total System sensible loss:
16,435 Btuh
Heating Supply Air: 7,533 / (.999 X 1.08 X 20) =
349
CFM
Winter Vent Outside Air (71.6% of supply) =
250
CFM
Room space sensible gain: 31,494 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 330 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil:
31,824 Btuh
Cooling Supply Air: 31,824 / (.999 X 1.1 X 21) =
1,379
CFM
Summer Vent Outside Air (18.1 % of supply) =
250
CFM
Return duct sensible gain: 0 Btuh
Return plenum sensible gain: 0 Btuh
Outside air sensible gain: 5,495 Btuh
250
CFM
Blow-thru fan sensible gain: 0 Btuh
Total sensible gain on return side of coil:
5,495 Btuh
Total sensible gain on air handling system:
37,319 Btuh
Room space latent gain: 4,000 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 11,267 Btuh
Total latent gain on air handling system:
15,267 Btuh
Total system sensible and latent gain:
52,586 Btuh
Check Figures
Total Air Handler Supply Air (based on a 21 ° TD):
1,379
CFM
Total Air Handler Vent. Air (18.13% of Supply):
250
CFM
Total Conditioned Air Space:
1,960
Sq.ft
Supply Air Per Unit Area:
0.7035
CFM/Sq.ft
Area Per Cooling Capacity:
447.3
Sq.ft/Ton
Cooling Capacity Per Area:
0.0022
Tons/Sq.ft
Heating Capacity Per Area:
8.39
Btuh/Sq.ft
Total Heating Required With Outside Air:
16,435
Btuh
Total Cooling Required With Outside Air:
4.38
Tons
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Engineerinq
ASLCSO
Visitation Buildinq
Fort Pierce FL 34950
Pa e 9
Air Handler #3 - AHU 3 - Summmy
Loads
Rm Description
Area
Htg.Loss
Sen.Gain
Lat.Gain
Htg.O.A.
Clg.O.A.
No Room Peak Time
People
Htg.CFM
Clg.CFM
S.Exh
Req.CFM
Req.CFM
Volume
CFM/Sgft
CFM/Sgft
W.Exh
_ Act.CFM
Act.CFM
10 Storage East
1,566
5,720
23,273
2,200
Direct
Direct
3pm August
11
265
1,019
0
150
150
14,094
0.17
0.65
0
150
150
Room Peak Totals:
1,566
5,720
23,273
2,200
Total Rooms: 1
11
265
1,019
0
150
150
Unique Rooms: 1
14,094
0.17
0.65
0
150
150
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Engineerinq
ASLCSO
Visitation Buildinq
Fort Pierce FL 34950
Pa e 10
Air Handler #3 - AHU 3 - Total Load Summa
Air Handler Description: AHU 3 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of
0.10 HP
Fan Input: 0% motor and fan efficiency with 0 in. water
across the fan
Sensible Heat Ratio: 0.91
--- This system occurs
1 time(s) in the building. ---
Air System Peak Time: 3pm in August.
Outdoor Conditions: Clg: 95' DB, 80' WB, 131.03 grains, Htg:
42' DB
Indoor Conditions: Clg: 75' DB, 50% RH, Htg: 75° DB
Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air.
Room Space sensible loss: 5,720 Btuh
Infiltration sensible loss: 0 Btuh
0
CFM
Outside Air sensible loss: 5,341 Btuh
150
CFM
Supply Duct sensible loss: 0 Btuh
Return Duct sensible loss: 0 Btuh
Return Plenum sensible loss: 0 Btuh
Total System sensible loss:
11,061 Btuh
Heating Supply Air: 5,720 / (.999 X 1.08 X 20) =
265
CFM
Winter Vent Outside Air (56.6% of supply) =
150
CFM
Room space sensible gain: 23,273 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 244 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil:
23,517 Btuh
Cooling Supply Air: 23,517 / (.999 X 1.1 X 21) =
1,019
CFM
Summer Vent Outside Air (14.7% of supply) =
150
CFM
Return duct sensible gain: 0 Btuh
Return plenum sensible gain: 0 Btuh
Outside air sensible gain: 3,297 Btuh
150
CFM
Blow-thru fan sensible gain: 0 Btuh
Total sensible gain on return side of coil:
3,297 Btuh
Total sensible gain on air handling system:
26,814 Btuh
Room space latent gain: 2,200 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 6,760 Btuh
Total latent gain on air handling system:
8,960 Btuh
Total system sensible and latent gain:
35,774 Btuh
Check Figures
Total Air Handler Supply Air (based on a 21 ° TD):
1,019
CFM
Total Air Handler Vent. Air (14.72% of Supply):
150
CFM
Total Conditioned Air Space:
1,566
Sq.ft
Supply Air Per Unit Area:
0.6507
CFM/Sq.ft
Area Per Cooling Capacity:
525.3
Sq.ft/Ton
Cooling Capacity Per Area:
0.0019
Tons/Sq.ft
Heating Capacity Per Area:
7.06
Btuh/Sq.ft
Total Heating Required With Outside Air:
11,061
Btuh
Total Cooling Required With Outside Air:
2.98
Tons
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.
Fort Pierce Engineerinq ASLCSO Visitation Buildinq
Fort Pierce FL 34950 Page 11
Air Handler #4 - AHU 4 - Summary
Loads
Rm
Description
Area
Htg.Loss
Sen.Gain
Lat.Gain
Htg.O.A.
Clg.O.A.
No
Room Peak Time
People
Htg.CFM
Clg.CFM
S.Exh
Req.CFM
Req.CFM
Volume
CFM/Sgft
CFM/Sgft
W.Exh
Act.CFM
Act.CFM
11
Storage West
1,470
7,595
22,632
2,000
Direct
Direct
3pm August
10
352
983
0
139
139
13,230
0.24
0.67
0
126
135
12
Office
64
570
1,305
200
Direct
Direct
9pm August
1
26
57
0
6
6
576
0.41
0.89
0
9
8
13
RR
48
892
1,228
200
Direct
Direct
9pm August
1
41
53
0
5
5
432
0.86
1.11
0
15
7
Room Peak Totals:
1,582
9,057
25,165
2,400
Total Rooms: 3
12
420
1,093
0
150
150
Unique Rooms: 3
14,238
0.27
0.69
0
150
150
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM
Chvac - Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Engineerinq
ASLCSO
Visitation Buildinq
Fort Pierce FL 34950
Pa e 12
Air Handler #4 - AHU 4 - Total Load Summa
Air Handler Description: AHU 4 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of
0.10 HP
Fan Input: 0% motor and fan efficiency with 0 in. water
across the fan
Sensible Heat Ratio: 0.91
--- This system occurs
1 time(s) in the building. ---
Air System Peak Time: 4pm in August.
Outdoor Conditions: Clg: 95' DB, 80' WB, 131.77 grains, Htg:
42' DB
Indoor Conditions: Clg: 75' DB, 50% RH, Htg: 75° DB
Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air.
Room Space sensible loss: 9,057 Btuh
Infiltration sensible loss: 0 Btuh
0
CFM
Outside Air sensible loss: 5,341 Btuh
150
CFM
Supply Duct sensible loss: 0 Btuh
Return Duct sensible loss: 0 Btuh
Return Plenum sensible loss: 0 Btuh
Total System sensible loss:
14,398 Btuh
Heating Supply Air: 9,057 / (.999 X 1.08 X 20) =
420
CFM
Winter Vent Outside Air (35.7% of supply) =
150
CFM
Room space sensible gain: 24,955 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 262 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil:
25,217 Btuh
Cooling Supply Air: 25,217 / (.999 X 1.1 X 21) =
1,093
CFM
Summer Vent Outside Air (13.7% of supply) =
150
CFM
Return duct sensible gain: 0 Btuh
Return plenum sensible gain: 0 Btuh
Outside air sensible gain: 3,297 Btuh
150
CFM
Blow-thru fan sensible gain: 0 Btuh
Total sensible gain on return side of coil:
3,297 Btuh
Total sensible gain on air handling system:
28,514 Btuh
Room space latent gain: 2,400 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 6,760 Btuh
Total latent gain on air handling system:
9,160 Btuh
Total system sensible and latent gain:
37,674 Btuh
Check Figures
Total Air Handler Supply Air (based on a 21 ° TD):
1,093
CFM
Total Air Handler Vent. Air (13.73% of Supply):
150
CFM
Total Conditioned Air Space:
1,582
Sq.ft
Supply Air Per Unit Area:
0.6906
CFM/Sq.ft
Area Per Cooling Capacity:
503.9
Sq.ft/Ton
Cooling Capacity Per Area:
0.0020
Tons/Sq.ft
Heating Capacity Per Area:
9.10
Btuh/Sq.ft
Total Heating Required With Outside Air:
14,398
Btuh
Total Cooling Required With Outside Air:
3.14
Tons
Z:\ ...\SLCSO Visitation Building Heat Load.CH8 Thursday, October 29, 2020, 03:06 PM