HomeMy WebLinkAboutHVAC LOAD ANALYSISMosquito Control
HVAC Load Analysis
for
St. Lucie County
3150 Will Fee Road
Fort Pierce, Florida
SCANNEL,
By
St. Lucie Count,
COMMERCIAL
HVAC LOADS
SVOUO',*,
ems° ENS,'r.•�9�re
* No 60982 r
o
Prepared By.
Eric J. Svoboda. PE
Fort Pierce Engineering, Inc
315 South 7th Street
Fort Pierce, FL 34950
772-672-4636
Monday, December 08, 2014
u
- -- -
Chvac - Ftill Commercial HVAC.Loads Calculation,Program
Buildigg Summary Loads
Building peaks in August at 4pm.
Elite Software Development, Inc.
Mosquito Control
Page 2_
Net
Roof
2,956
8,779
19.95
0
11.257
11.257
Wall
2,110
6,615
15.03
0
4,645
4,645
Glass
270
7,395
1680
0
18.645
18.645
Floor Slab
238
4,869
11 06
0
0
0
Skin Loads
27,659
62.84
0
34.547
34.547
Lighting
5,912
0
0.00
0
20,173
20,173
Equipment
2.956
0
0,00
0
10.086
10.086
People
19
0
0.00
3,781
4.727
8.508
Partition
350
333
0.76
0
333
333
Cool. Pret.
0
0
0.00
0
0
0
Heal. Pret.
0
0
0.00
0
0
0
Cool. Vent.
450
0
0.00
16,176
9,891
26,067
Heal. Vent.
450
16,024
36.40
0
0
0
Cool.lnfil.
0
0
0.00
0
0
0
Heat.lnfil.
0
0
0.00
0
0
0
Draw-Thru Fan
0
0
0.00
0
782
782
Blow-Thru Fan
0
0
0.00
0
0
0
Reserve Cap.
0
0
0.00
0
0
0
Reheat Cap.
0
0
0.00
0
0
0
Supply Duct
0
0
0.00
0
0
0
Return Duct
0
0
0,00
0
0
0
Misc. Supply
0
0
0.00
0
0
0
Misc. Return
0
0
000
0
0
0
%Net
Gain
11 20
4 62
18 55
000
34 38
20 07
10 04
847
0 33
000
0 00
2594
0 00
0 00
000
0 78
0 00
0 00
000
0 00
000
000
0 00
Building Totals 44.015 100.00 19,957 80.538
100,496
10000
e �0 iqr
Sen, :,� >,�,�/o�ot,
a
IM ,r, Lat w��
° ,Sen �; ,, ,_
Met:
0
LeNet
.Mhy J i d i f.•%M tYl �1 l.pfl'4 ✓I,Yl.��
Summa�' k ="' ':' Loss-t�L-oss
Gain
'4
Gairi
Gain
Gain
Ventilation 16,024 3640
16,176
9.891
26.067
25 04
Infiltration 0 000
0
0
0
000
Pretreated Air 0 0.00
0
0
0
000
Zone Loads 27,991 63.60
3.781
69,865
73,646
73 28
Plenum Loads 0 0.00
0
0
0
000
Fan & Duct Loads 0 0.00
0
782
782
0 78
Building Totals 44,015 100.00
19,957
80,538
100,496
100 00
'Check Figures
----
i Total Building Supply Air (based on a 20° TD):
3,269
CFM
Total Building Vent Air (13.77% of Supply):
450
CFM
Total Conditioned Air Space:
2.956
Sq.ft
Supply Air Per Unit Area:
1.1057
CFM/Sq.ft
Area Per Cooling Capacity:
353.0
Sq.ft/Ton
Cooling Capacity Per Area
0.0028
Tons/Sq.fl
Heating Capacity Per Area:
14.89
Btuh/Sq.ft
Total Heating Required With Outside Air
44,015
Btuh
Total Cooling Required With Outside Air:
8,37
Tons
Z t \Mosquito Control Heat Load.CHV Monday. December 08. 2014. 04.04 PM
C6vac - FuIPCommercial HVAC,Loads Calculation Program j Elite Software Development, Inc.
Mosquito Control
Nu1HF --- — ---- -- Page.3
[Air Handler #1 - AHU_1_ - Summary_ Loads
Zn
�.
�No
Description
Zone Peak yTlme dr
Area Htg Loss Sen Gain Laf Gain
People x � Htg CFM C,Ig=CFM ;S Exh
Volume# `CFM/Sgft1°-'CFM/Sgft WE-xh`
Htg.O.A.
Req_CFM
Acf:CFMActCFM
CIg.O.A.
Req.CFM
1
Office 10
324
3.565
6,470
432
Direct
Direct
3pm August
2
165
297
0
45
45
2,592
0.51
0.92
0
45
30
2
Office 11
644
7,891
23,879
859
Direct
Direct
4pm August
4
366
1,097
0
89
89
5,152
0 57
1.70
0
100
111
3
Office 9
120
356
1,907
160
Direct
Direct
3pm August
1
17
88
0
17
tr
960
0.14
0.73
0
5
9
Zone Peak Totals:
1.088
11,813
32,256
1,451
Total Zones: 3
7
547
1,482
0
150
150
Unique Zones: 3
8,704
0.50
1 36
0
150
150
• Z:\. \Mosquito Control Heal load.CHV Monday, December 08. 2014 04 04 PM
Chvac - Full, ommercial HVAC Loads•Calculation Program Elite Software Development, Inc.
Mosquito Control
Page 4
Air Handler #1 - A_HU 1 - Total Load Summary
Air Handler Description: AHU 1 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of 0 14 HP
Fan Input: 0% motor and fan efficiency with 0 in. water across the fan
Sensible Heat Ratio: 0.96 --- This system occurs 1 time(s) in the building --
Air System Peak Time 4pm in August
Outdoor Conditions: Clg: 95' DB, 78' WB. 118.35 grains,
Hlg! 42' DB
Indoor Conditions: Clg: 75' DB, 50% RH, Htg: 75' D8
Summer. Ventilation controls outside air, ----- Winter. Ventilation
controls outside air
Zone Space sensible loss: 11,813 Bluh
Infiltration sensible loss: 0 Bluh
0 CFM
Outside Air sensible loss. 5,341 Btuh
150 CFM
Supply Duct sensible loss. 0 Btuh
Return Duct sensible loss: 0 Btuh
Keturn Plenum sensible loss:. 0 Btuh
Total System sensible loss:
Heating Supply Air 11,813 / (999 X 1.08 X 20) =
547 CFM
Winter Vent Outside Air (27.4% of supply) =
150 CFM
Zone space sensible gain: 32.210
Bluh
Infiltration sensible gain:
0
Btuh
Draw-thru fan sensible gain:
355
Bluh
Supply duct sensible gain:
0
Btuh
Reserve sensible gain:
0
Btuh
Total sensible gain on supply side of coil:
Cooling Supply Air: 32,565 / (.999 X 1.1 X 20) =
1,482 CFM
Summer Vent Outside Air (10.1% of supply) =
150 CFM
Return duct sensible gain: 0
Btuh
Return plenum sensible gain 0
Bluh
Outside air sensible gain 3.297
Btuh 150 CFM
Blow-thru fan sensible gain. 0
Bluh
Total sensible gain on return side of coil.
Total sensible gain on au handling system:
Zone space latent gain: 1.451 Btuh
Infiltration latent gain: 0 Bluh
Outside air latent gain 5,392 Bluh
Total latent gain on air handling system:
Total system sensible and latent gain:
Total Air Handler Supply Air (based on a 20° TD):
1.482
CFM
Total Air Handler Vent. Air (10.12% of Supply).
150
CFM
Total Conditioned Air Space:
1,088
Sq.ft
Supply Air Per Unit Area:
1.3617
CFM/Sq.ft
Area Per Cooling Capacity:
305.7
Sq.ft/Ton
Cooling Capacity Per Area.
00033
Tons/Sq.ft
Heating Capacity Per Area.
15.77
Btuh/Sq.ft
Total Heating Required With Outside Au.
17,154
Bluh
Total Cooling Required With Outside Air
3 56
Tons
17,154 Btuh
32,565 Btuh
3,297 Btuh
35.862 Btuh
6,843 Btuh
42.704 Btuh
Z 1 \Mosquito Control Heat Load CHV Monday, December 08, 2014 04 04 PM
Chvac - Fulh Commercial HVAC�•Loads Calculation Program'
'., I.
Elite Software Development, Inc.
Mosquito Control
- Page 6
Air Handler #2 - AHU 2 - Total Load Summary
Au Handler Description. AHU 2 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of 0.09 HP
Fan Input: 0% motor and fan efficiency with 0 in water across the fan
Sensible Heat Ratio: 0.94 --- This system occurs 1 time(s) in the building --
Air System Peak Time: 3pm in August.
,Outdoor Conditions: Clg: 95° DB, 78' WB, 117.61 grains, Htg: 42' DB
Indoor Conditions Clg: 75' DB, 50% RH. Htg 75' DB
Because of the diversity in zone, plenum and ventilation loads, the zone sensible peak time in August at 9am is different
'from the total system peak time, hence the air system CFM was computed using a zone sensible load of 21.604
Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air
Zone Space sensible loss: 9,321 Btuh
Infiltration sensible loss.
0
Btuh
Outside Air sensible loss:
5.341
Btuh
Supply Duct sensible loss:
0
Btuh
Return Duct sensible loss:
0
Btuh
Return Plenum sensible loss:
0
Btuh
Total System sensible loss:
Healing Supply Air 9,321 / (.999 X 1.08 X 20) _
Winter Vent Outside Air (34.7% of supply) _
Zone space sensible gain: 20,850
Btuh
Infiltration sensible gain:
0
Btuh
Draw-thru fan sensible gain:
238
Btuh
Supply duct sensible gain:
0
Btuh
Reserve sensible gain:
0
Btuh
Total sensible gain on supply side of coil
Cooling Supply Air: 21.842 / (.999 X 1 1 X 20) _
Summer Vent Outside Air (15.1 % of supply) _
Return duct sensible gain: 0 Btuh
Return plenum sensible gain: 0 Bluth
Outside air sensible gain: 3.297 Btuh
Blow-thru fan sensible gain: 0 Bluth
Total sensible gain on return side of coil:
Total sensible gain on air handling system.
0 CFM
150 CFM
432 CFM
150 CFM
994 CFM
150 CFM
150 CFM
Zone space latent gain: 1,273 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 5,392 Btuh
Total latent gain on air handling system:
Total system sensible and latent gain:
Check Figures
Total Air Handler Supply Air (based on a 20° TD): 994
Total Air Handler Vent. Air (15.10% of Supply): 150
Total Conditioned Air Space:
Supply Air Per Unit Area:
Area Per Cooling Capacity:
Cooling Capacity Per Area:
Heating Capacity Per Area.
Total Heating Required With Outside Air.
Total Cooling Required With Outside Au'.
CFM
CFM
955
Sq.ft
1.0405
CFM/Sq.ft
3691
Sq.ft/Ton
0.0027
Tons/Sq.ft
15.35
Bluh/Sq,ft
14,662 Btuh
2.59 Tons
14.662 Btuh
21,088 Btuh
3,297 Btuh
24,385 Btuh
6.665 Btuh
31,050 Stuh
Z 1 1Mosquito Control Heat Load.CHV Monday. December 08, 2014 04 04 PM
Chvac - Full' Commercial HVACLoads,Calculation Program i -
Air Handler #3 - AHU 3 -_ Summary Loads
Zn Qescn,ptlon. 1-. Area A tg Coss • Sen Gail
'No Zone Peak Time People Htg,CFM CIg:CFh
11
Office
117
471
1,983
3pm August
1
22
90
936
019
0.77
12
Office 6
160
570
2,638
3pm August
1
26
120
1.280
0.17
0:75
13
Office 7
192
1,513
3.495
4pm August
1
70
159
I
1,536
0.37
0.83
14
Electrical Room
120
1,755
2,354
7pm August
0
81
107
960
0.68
0.89
15
Men
48
453
881
5pm August
0
21
40
384
0.44
0,83
16
Women
48
453
881
5pm August
0
21
40
384
0.44
0,83
17
Office 8
104
1.273
3,248
4pm August
1
59
148
832
0.57
1.42
18
Hall
124
368
1,971
3pm August
1
17
90
992
0.14
0.72
Zone Peak Totals:
913
6,858
17,450
Total Zones: 8
5
318
793
Unique Zones: 8
7.304
0.35
0.87
EliteiSoftware Development, Inc.:
Mosquito Control
_,__Page 7
Htg 0. A.
Clg.O.A.
Lat Gain
S.Exh
Req.CFM
Req.CFM
)A Exh
ACt.CFM
._ Act,CFM
156
Direct
Direct
0
19
19
0
10
17
213
Direct
Direct
0
26
26
0
12
23
256
Direct
Direct
0
32
32
0
33
30
0
Direct
Direct
0
20
20
0
38
20
64
Direct
Direct
0
8
8
0
10
6
64
Direct
Direct
0
8
8
0
10
8
139
Direct
Direct
0
17
17
0
28
28
165
Direct
Direct
0
20
20
0
8
17
1.057
0
150
150
0
150
150
Z'1 Wosquilo Control Heat Load CHV Monday. December 08. 2014 04 04 PM
rChvac -FUII Commercial HVAC-Loads Calculation Program Elite Software Development, Inc.
Mosquito Control
Page 8
Air Handler_#3 - AH_U 3 - Total Load_ Summary
Air Handler Description: AHU 3 Constant Volume - Proportion
Supply Air Fan Draw-Thru with program estimated horsepower of 0.07 HP
Fan Input: 0% motor and fan efficiency with 0 in. water across the fan
Sensible Heat Ratio 0.94 --- This system occurs 1 time(s) In the building ---
Air System Peak Time: 4pm in August.
-Outdoor Conditions: Clg: 95' DB.
78" WB, 118.35 grains. Htg: 42' DB
Indoor Conditions: Clg 75' DB,
50% RH. Htg75' DB
_ Summer Ventilation controls outside air,
----- Winter: Ventilation controls outside air.
Zone Space sensible loss:
6,858 Bluth
.Infiltration sensible loss:
0 Bluth 0 CFM
Outside Air sensible loss.
5,341 Btuh 150 CFM
Supply Duct sensible loss:
0 Bluth
Return Duct sensible loss:
0 Btuh
Return Plenum sensible loss:
0 Btuh
Total System sensible loss:
Heating Supply Air: 6,858 / (.999 X 1.08 X 20) _
Winter Vent Outside Air (47.2% of supply) =
Zone space sensible gain: 17,247 Bluth
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 190 Btuh
Supply duct sensible gain 0 Btuh
Reserve sensible gain 0 Btuh
Total sensible gain on supply side of coil:
Cooling Supply Air: 17,437 / (.999 X 1.1 X 20) _
Summer Vent Outside Air (18.9% of supply) =
Return duct sensible gain: 0
Bluth
Return plenum sensible gain. 0
Btuh
Outside air sensible gain: 3,297
Stuh
Blow-thru fan sensible gain: 0
Btuh
Total sensible gain on return side of coil:
Total sensible gain on air handling system:
Zone space latent gain: 1,057
Btuh
Infiltration latent gain. 0
Bluth
Outside air latent gain: 5.392
Btuh
Total latent gain on air handling system:
Total system sensible and latent gain:
6eck;Figures
Total Air Handler Supply Air (based on a 20 TD)
Total Air Handler Vent. Air (18,91% of Supply):
Total Conditioned Air Space:
Supply Air Per Unit Area:
Area Per Cooling Capacity:
Cooling Capacity Per Area:
Heating Capacity Per Area:
Total Heating Required With Outside Air:
Total Cooling Required With Outside Air
318 CFM
150 CFM
793 CFM
150 CFM
150 CFM
793
CFM
150
CFM
913
Sq.ft
0.8689
CFM/Sq.ft
403.0
Sq.fl/Ton
0.0025
Tons/Sq.ft
13.36
Bluh/Sq.ft
12,199 Btuh
2.27 Tons
12.199 Btuh
17.437 Btuh
3,297 Bluth
20,734 Btuh
6,449 Stun
27,183 Btuh
Z \ \Mosquito Control Heat Load CHV
Monday, December 08, 2014 04 04 PM