HomeMy WebLinkAboutCHVAC LoadsAccelerated Academies
HVAC Load Analysis
for
Accelerated Academies
7526-7532 US Highway 1
Port St. Lucie, Florida
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Eric J. Svoboda, PE
Fort Pierce Engineering, Inc.
315 South 7th Street
Fort Pierce, FL 34950
772-672-4636
Friday, December 17, 2021
1 0
Chvac Fyll Commercial HVi4C Loads Calculation Program ,��� Elite Software Development, Inc::
Fork Pierce EngineeringK Accelerated Academies
-f.. t-
Fort Pierce. FL 34950 - _ P"age 2,
General Pro "ect Data Input
h
General 6i'6 ',6forma i'
Project file name:
Accelerated Academies Heat Load.CH8
Project title:
Accelerated Academies
Designed by:
Eric J. Svoboda, PE
Project date:
Monday, July 07, 2008
Weather reference city:
FORT PIERCE, FLORIDA, USA
Client name:
Accelerated Academies
Client address:
7526-7532 US Highway 1
Client city:
Port St. Lucie, 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: 16
Bia ldln efault'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:
10.00
feet
Building default walf;,height:
12.00
feet
Iriternal .O`'4eratin"
Load
I?ro llesn C 100r
hr
I hr
hr
-• - hr
I hr
W
fir
hr
hr
I hr
I hr
hr
hr
hr
hr
hr
hr
I hr
hr
I hr
I hr
hr
hr
hr
1
: :'2
3
4
' S
' 6
7
8
9
1 10
1 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
y P.
C
C,'.
C
C
c
C
c
c
C
C
C
C
C
C
C
C
C
C
C
C
C
c
3
C
a—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
'r.'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"Jc
`-?
,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
8
C
C
C
C
Ca
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
9
C
c
"` C
-c
-: C
C
C
C
C
C
C
C
C
C
C
C
c
c
c
C
C
C
C
10
C
C."0
"' C
C
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C
C
C
C
C
C
C
C
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C
C
C
C
C
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Z:\ ...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
Chvac,- Full'Commercial HVAC Loads Calculation` ir6 ram, `` `'
Elite Software Development. Inc.
Fort,Pierce,Enpineerind v " .
�,
. Accelerated Academies
. Pa e 3
General Pro "ect Data Input(cont'd
Buildin-LevelDesicin,Conditions�
Design Outdoor Outdoor Indoor
Month Dry Bulb Wet Bulb Rel.Hum
Indoor
Dry Bulb
Grains
Diff
In/Outdoor
Correction
August 95 80
Winter 42
50%
75
75
66.33
6
Roof ASHRAE
No. Roof#
Roof
U-Fac
Dark
Color
Susp.
Ceil
1 1
Roof #1 Description: Metal Roof, R-20
0.050
No
No
Master'V1lalfs"` �'
Wall ASHRAE
No. Group
Wall
U-Fac
Wall
Color
1 C 0.095 L
Wall #1 Description: Block wall, 8" sand & gravel, hollow core, siding exterior, interior finish, 1" extruded poly,
R-5.0
Master'Gass'
Glass Summer Winter
No. U-Factor U-Factor
Glass
Shd.Coef.
Interior
Shading
Interior
Shd.Coef
1 0.810 0.830
Glass #1 Description: Default Glass
1.000
1
0.550
Z:\ ...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
Chvac Full Cornmercial HUAC Loads Calculation Program -
Elite Software Development, Inc.,,
Eort;Fierce Eneerinq
gmFL
q„
Accelerated Academies
i r 4950
a 4
Building Summaly
Loads
Building peaks in August at 4pm.
ad
BldgLoat
Area
Sen
%Tot
L`
;Sen
Net %Net`
Descri tions ,
an Loss 1 -Loss •�Galm. E
,_' Galn Galn '{"
_
Gain;
Roof
5,639
9,304
11.23
0
11,366
11,366
3.86
Wall
1,710
5,361
6.47
0
2,690
2,690
0.91
Glass
774
21,200
25.59
0
79,999
79,999
27.18
Floor Slab
207
4,235
5.11
0
0
0
0.00
Skin Loads
40,100
48.41
0
94,055
94,055
31.95
Lighting
11,206
0
0.00
0
38,236
38,236
12.99
Equipment
6,085
0
0.00
0
20,763
20,763
7.05
Pool Latent
0
0
0.00
0
0
0
0.00
People
131
0
0.00 26,200
32,750
58,950
20.03
Partition
0
0
0.00
0
0
0
0.00
Cool. Pret.
0
0
0.00
0
0
0
0.00
Heat. Pret.
0
0
0.00
0
0
0
0.00
Cool. Vent.
1,200
0
0.00 54,081
26,376
80,457
27.33
Heat. Vent.
1,200
42,729
51.59
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
1,892
1,892
0.64
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
82,830 100.00 80,281
214,072
294,354
100.00
Building
Sen
%Tot
Lat
Sen'
Net
%Net=
Summa4 _ .. r.< ... �_:-� Loss'
Loss,,
Galn
Gainn3
Gain
Gala:
Ventilation
42,729
51.59
54,081
26,376
80,457
27.33
Infiltration
0
0.00
0
0
0
0.00
Pretreated Air
0
0.00
0
0
0
0.00
Room Loads
40,100
48.41
26,200
185,804
212,004
72.02
Plenum Loads
0
0.00
0
0
0
0.00
Fan/Duct/Misc Loads
0
0.00
0
1,892
1,892
0.64
Building Totals
82,830
100.00
80,281
214,073
294,354
100.00
LC'heck Fi' ures- ,t
µ.
Total Building Supply Air (based on a 220
TD):
7,905
CFM
Total Building Vent. Air (15.18%
of Supply):
1,200
CFM
Total Conditioned Air Space:
5,603
Sq.ft
Supply Air Per Unit Area:
1.4109
CFM/Sq.ft
Area Per Cooling Capacity:
228.4
Sq.ft/Ton
Cooling Capacity Per Area:
0.0044
Tons/Sq.ft
Heating Capacity Per Area:
14.78
Btuh/Sq.ft
Total Heating Required With Outside Air:
82,830
Btuh
Total Cooling Required With Outside Air:
24.53
Tons
Z:\ ...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
Chvac -Full Commercial HVAC Loads Calculation Program
Elite Software Development, Inc.
Fort Pierce Engineering
Accelerated
Academies
o'
ier d .,
..
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.. ..
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Page 5
Air Handler #1- RTU 1- Summaty
Loads
Rm'
Description
Area
Htg.Lo 's `
Sen.Galn
Lat.Gain i
Htg:O A:
CIg.O A.
.
People
Htg.GM
,GNoRoom.?eakTlmelg CFM
,CFM/
SvExh
Req:CEM
ReqCFM
'Volume_'`GFM/S
et-
NEXt
Act:CFM<
Act,"CFM
1
Reception
240
2,389
10,735
400
Direct
Direct
4pm August
2
111
446
0
48
48
2,400
0.46
1.86
0
50
63
2
Multipurpose 3
224
4,950
18,003
1,200
Direct
Direct
4pm August
6
229
748
0
45
45
2,240
1.02
3.34
0
103
105
3
Multipurpose 2
224
1,183
4,455
1,200
Direct
Direct
2pm August
6
55
185
0
45
45
2,240
0.24
0.83
0
25
26
Open Colaboration /
990
7,215
23,580
5,600
Direct
Direct
4
Cafe
2pm August
28
334
980
0
199
199
9,900
0.34
0.99
0
150
138
5
I.T. Closet
18
612
2,102
0
Direct
Direct
3pm August
0
28
87
0
4
4
180
1.58
4.85
0
13
12
6
RR 1
49
487
1,050
200
Direct
Direct
3pm August
1
23
44
0
10
10
490
0.46
0.89
0
10
6
Room Peak Totals:
1,745
16,836
59,925
8,600
Total Rooms: 6
43
780
2,490
0
350
350
Unique Rooms: 6
17,450
0.45
1.43
0
350
350
Z:\...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
Chvac Fu11 Commercial HVAC Loads CionalculatPirogram _ Elite Software Development, Inc
FortrPierce Engineennq Accelerated
Academies'
-:'FLL 950
Air Handler ##1- RTU 1- Total Load Summar
Air Handler Description: RTU 1 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of
0.23 HP
Fan Input: 0% motor and fan efficiency with 0 in. water across the fan
Sensible Heat Ratio: 0.87
--- This system occurs 1 time(s) in the building. ---
Air System Peak Time: 4pm in August.
Outdoor Conditions: Clg: 950 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: 16,836 Btuh
Infiltration sensible loss: 0 Btuh
0
CFM
Outside Air sensible loss: 12,463 Btuh
350
CFM
Supply Duct sensible loss: 0 Btuh
Return Duct sensible loss: 0 Btuh
Return Plenum sensible loss: 0 Btuh
Total System sensible loss:
29,298 Btuh
Heating Supply Air: 16,836 / (.999 X 1.08 X 20) =
780
CFM
Winter Vent Outside Air (44.9% of supply) =
350
CFM
Room space sensible gain: 59,597 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 596 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil:
60,193 Btuh
Cooling Supply Air: 60,193 / (.999 X 1.1 X 22) =
2,490
CFM
Summer Vent Outside Air (14.1 % of supply) =
350
CFM
Return duct sensible gain: 0 Btuh
Return plenum sensible gain: 0 Btuh
Outside air sensible gain: 7,693 Btuh
350
CFM
Blow-thru fan sensible gain: 0 Btuh
Total sensible gain on return side of coil:
7,693 Btuh
Total sensible gain on air handling system:
67,886 Btuh
Room space latent gain: 8,600 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 15,774 Btuh
Total latent gain on air handling, system:
24,374 Btuh
Total system sensible and latent gain: _
92,260 Btuh
dh6dK Fi ulres _
r Q
L
ry
Total Air Handler Supply Air (based on a 22° TD):
2,490
CFM
Total Air Handler Vent. Air (14.06% of Supply):
350
CFM
Total Conditioned Air,Space:
1,745
Sq.ft
Supply Air Per Unit Area:
1.4267
CFM/Sq.ft
Area Per Cooling Capacity:
227.0
Sq.ft/Ton
Cooling Capacity Per Area:
0.0044
Tons/Sq.ft
Heating Capacity Per Area:
16.79
Btuh/Sq.ft
Total Heating Required With Outside Air:
29,298
Btuh
Total Cooling Required With Outside Air:
7.69
Tons
Z:\ ...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
Chvac - Full'Commercial HVAC Loads Calcalation'Program"* Elite Software Development, Inc.
Fort Pierce Engineering Accelerated Academies
.
Pierce.Fort FL� 3 950 Page
Air Handler #2 - RTU 2 - Summaly Loads
Rm.`° Descripti'on ' Area HtgIoss'
`Sen.Gain
Lat.Gain
1-"Htg.O.A. 1
Clg`;0..4:`
No Room Peak Time 'People
Htg.CFM
'-CIg.CFM
S.Exh
Req.CFMIJ,
Req.CFM
. ; �° �� '� ..,.. .. ...UoluM _ �'
,FWS ftv �-
CFM/S ft -
; �� ° W..Exh
-' d;Act.CFMi
- ' Act..CFM
Reception / Collab /
7 Cafe
4pm August
8 RR 2
3pm August
9 RR 3
2pm August
Room Peak Totals:
Total Rooms: 3
Unique Rooms: 3
1,720
9,687
52,857
7,600
Direct
Direct
38
449
2,207
0
331
331
17,200
0.26
1.28
0
331
338
49
487
1,050
200
Direct
Direct
1
23
44
0
9
9
490
0.46
0.89
0
17
7
49
81
861
200
Direct
Direct
1
4
36
0
9
9
490
0.08
0.73
0
3
6
-..-..-------- --
1,818
10,256
54,768
8,000
40
475
2,287
0
350
350
18,180
0.26
1.26
0
350
350
Z:\ ...\Accelerated Academies Heat Load.CH8
Friday, December 17, 2021, 03:24 PM
Full Commercial HVAC Loads Calculation Proqram
Elite Software Development, Inc..
�.','2ttaPi'ercc e Engmeerinq
Accelerated Academies,
s
_
Air Handler ##2 - RTU 2 - Total Load Summar
Air Handler Description: RTU 2 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower of
0.22 HP
Fan Input: 0% motor and fan efficiency with 0 in. water across the fan
Sensible Heat Ratio: 0.87
--- 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: 750 DB, 50% RH, Htg: 75° DB
Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air.
Room Space sensible loss: 10,256 Btuh
Infiltration sensible loss: 0 Btuh
0
CFM
Outside Air sensible loss: 12,463 Btuh
350
CFM
Supply Duct sensible loss: 0 Btuh
Return Duct sensible loss: 0 Btuh
Return Plenum sensible loss: 0 Btuh
Total System sensible loss:
22,718 Btuh
Heating Supply Air: 10,256 / (.999 X 1.08 X 20) =
475
CFM
Winter Vent Outside Air (73.6% of supply) =
350
CFM
Room space sensible gain: 54,749 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 547 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil:
55,296 Btuh
Cooling Supply Air: 55,296 / (.999 X 1.1 X 22) =
2,287
CFM
Summer Vent Outside Air (15.3% of supply) =
350
CFM
Return duct sensible gain: 0 Btuh
Return plenum sensible gain: 0 Btuh
Outside air sensible gain: 7,693 Btuh
350
CFM
Blow-thru fan sensible gain: 0 Btuh
Total sensible gain on return side of coil:
7,693 Btuh
Total sensible gain on air handling system:
62,989 Btuh
Room space latent gain: 8,000 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 15,774 Btuh
Total latent gain on air handling system:
23,774 Btuh
Total system sensible and latent gain:
86,763 Btuh
.Check•Fi`�ures �
Total Air Handler Supply Air (based on a 22' TD):
2,287
CFM
Total Air Handler Vent. Air (15.30% of Supply):
350
CFM
Total Conditioned Air Space:
1,818
Sq.ft
Supply Air Per Unit Area:
1.2580
CFM/Sq.ft
Area Per Cooling Capacity: —
251.4
Sq.ft/Ton
Cooling Capacity Per Area:
0.0040
Tons/Sq.ft
Heating Capacity Per Area:
12.50
Btuh/Sq.ft
Total Heating Required With Outside Air:
22,718
Btuh
Total Cooling Required With Outside Air:
7.23
Tons
Zft ...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
FuII Commercial HVAC Loads Calculation`Program
'Foh'e
Elite Software Development, Inc.
�Chvac;
Fort'Pierce Engineering
H
Accelerated Academies
ce FL 34050 . -
a
Air Handler #3 - RTU 3 - Summaty
Loads
Rm Description '
Area
Htg.L:oss
Sen.Galn
Lat.Gain
Htg.O A.1
. 'CIg'.O.A.
'No Room, Peak Tlme' .
Peop`fe
Htg.CFM_
M' C�FM � `��
S.Exh
t Req.,CFM.
"� Req.CFM
e Volume. _...
CFM%Sft
-CF.MIS: ft1N,Exh
a ActCFM'�
Act.CFM
10 Open Collaboration
930
6,625
36,142
4,800
Direct
Direct
4pm August
24
307
1,582
0
239
239
9,300
0.33
1.70
0
247
245
11 RR 4
42
69
774
200
Direct
Direct
2pm August
1
3
34
0
11
11
420
0.08
0.81
0
3
5
Room Peak Totals:
972
6,695
36,916
5,000
Total Rooms: 2
25
310
1,616
0
250
250
Unique Rooms: 2
9,720
0.32
1.66
0
250
250
Z:1... \Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
Chvac Full Commer`c�al HVAC Loads Calculation Program ^ a
Fort FierceEngmeerm,A
Ehte
Software Development, Inc ,
Accelerated Academies.'
_-
o .v..i . x •9.. .e. a.. r n-.
.:
.ek1
e re Y .. 'i X.
Air Handler #3 - RTU 3 - Total Load SumMar
Air Handler Description: RTU 3 Constant Volume - Proportion
Supply Air Fan: Draw-Thru with program estimated horsepower
of 0.15 HP
Fan Input: 0% motor and fan efficiency with 0 in. water across the fan
Sensible Heat Ratio: 0.88
--- 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: 6,695 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:
15,597 Btuh
Heating Supply Air: 6,695 / (.999 X 1.08 X 20) =
310 CFM
Winter Vent Outside Air (80.6% of supply) =
250 CFM
Room space sensible gain: 36,906 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 387 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil:
37,293 Btuh
Cooling Supply Air: 37,293 / (.999 X 1.1 X 21) =
1,616 CFM
Summer Vent Outside Air (15.5% 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:
42,788 Btuh
Room space latent gain: 5,000 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 11,267 Btuh
Total latent gain on air handling system:
16,267 Btuh
Total system sensible and latent gain:
59,055 Btuh
Cleck.F' ures
Total Air Handler Supply Air (based on a 21' TD):
1,616 CFM
Total Air Handier Vent. Air (15.47% of Supply):
250 CFM
Total Conditioned Air Space:
972 Sq.ft
Supply Air Per Unit Area:
1.6624 CFM/Sq.ft
Area Per Cooling Capacity:
197.5 Sq.ft/Ton
Cooling Capacity Per Area:
0.0051 Tons/Sq.ft
Heating Capacity Per Area:
16.05 Btuh/Sq.ft
Total Heating Required With Outside Air:
15,597 Btuh
Total Cooling Required With Outside Air:
4.92 Tons
Z:\ ...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
ChC Loads Calculation Rrogram Elite Sott re'Development, Inc:
ForfaPierce E"ngmeen q Accelerated Academies
Fort: ce
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Air Handier #4 - RTU 4 - Summaty Loads
12
13
14
15
16
Open Collaboration
172
516
2pm August
2
24
1,720
0.14
Multi Purpose 1
288
4,795
4pm August
8
222
2,880
0.77
Testing
396
653
2pm August
10
30
3,960
0.08
File
170
281
2pm August
2
13
1,700
0.08
Utility
............ .......
42
.....
69
2pm August
1
3
420
0.08
Room Peak Totals:
1,068
6,314
Total Rooms: 5
23
293
Unique Rooms: 5
10,680
0.27
2,708
400
Direct
Direct
118
0
40
40
0.69
0
20
19
21,175
1,600
Direct
Direct
923
0
67
67
3.20
0
190
152
7,441
2,000
Direct
Direct
324
0
93
93
0.82
0
26
54
2,621
400
Direct
Direct
114
0
40
40
0.67
0
11
19
_ -
774
.._ ....
200
..... ... .
Direct
- -
Direct
34
0
10
10
0.80
0
3
6
34,719
4,600
1,513
0
250
250
1.42
0
250
250
Z:1... \Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM
Chuacy rFull Commercial HVAC'Loatls calculation Paogratn ff F ` jEhte Software Deuelopment,'In`c
FortP�erceEhgmeennq=r � �r AcceleratedAcatlmies
k u;� 'g }x ,r ra.. .'^r 'pr rt ,ag a. P`er•^a ea"'' r x.''r
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Air.Handler 4 RTU 4 o Total Load Summar
Air Handler Description: RTU 4 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: 0.88 --- 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: 420 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: 6,314 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: 15,216 Btuh
Heating Supply Air: 6,314 / (.999 X 1.08 X 20) = 293 CFM
Winter Vent Outside Air (85.4% of supply) = 250 CFM
Room space sensible gain: 34,552 Btuh
Infiltration sensible gain: 0 Btuh
Draw-thru fan sensible gain: 362 Btuh
Supply duct sensible gain: 0 Btuh
Reserve sensible gain: 0 Btuh
Total sensible gain on supply side of coil: 34,914 Btuh
Cooling Supply Air: 34,914 / (.999 X 1.1 X 21) = 1,513 CFM
Summer Vent Outside Air (16.5% 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: 40,409 Btuh
Room space latent gain: 4,600 Btuh
Infiltration latent gain: 0 Btuh
Outside air latent gain: 11,267 Btuh
Total latent gain on air handling system: 15,867 Btuh
Total system sensible and latent gain: 56,276 Btuh
Sx,? di e��,. � � ? .M�a"�."�+s a• ,.rc�s"� &a,„ rr�,V^ �s`�i
Total Air Handler Supply Air (based on a 21' TD): 1,513 CFM
Total Air Handler Vent. Air (16.53% of Supply): 250 CFM
Total Conditioned Air Space: 1,068 Sq.ft
Supply Air Per Unit Area: 1.4165 CFM/Sq.ft
Area Per Cooling Capacity: 227.7 Sq.ft/Ton
Cooling Capacity Per Area: 0.0044 Tons/Sq.ft
Heating Capacity Per Area: 14.25 Btuh/Sq.ft
Total Heating Required With Outside Air: 15,216 Btuh
Total Cooling Required With Outside Air: 4.69 Tons
Z:\ ...\Accelerated Academies Heat Load.CH8 Friday, December 17, 2021, 03:24 PM