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Duct Pressure Loss Report
Project Name
Project Issue Date
Project Status
Client Name
Project Address
Project Number
Organization Name
Organization Description
Building Name
Author
Run Time

Issue Date
Project Status
Owner
Enter address here
Project Number

4/16/2015 11:42

System One
System Information
System Classification
System Type
System Name
Abbreviation

Supply Air
Supply Air
System One

Total Pressure Loss Calculations by Sections
Section
Element
1 Duct
Fittings
Air Terminal
2 Duct
Fittings
3 Fittings
4 Duct
Fittings
5 Duct
Fittings
6 Fittings
Equipment
7 Duct
Fittings
Air Terminal
8 Duct
Fittings
9 Fittings
10 Duct
Fittings
11 Fittings

12 Duct
Fittings
Air Terminal
13 Duct
Fittings
14 Fittings
Critical Path : 6-5-4-11-10-14-13-12 ; Total Pressure Loss : 147.1 Pa
Detail Information of Straight Segment by Sections
Section
Element ID
1
2
4
5
7
8
10
12
13

Fitting and Accessory Loss Coefficient Summary by Sections
Section
Element ID
1
2

3
4

5
6
7
8

9
10
11

897146
897139
896901
897152
896918
897171
897164
897177
897200
896930
897189

897558
897153
897557
897558
897151
897557
896941
897151
897555
897554
897555
897554
897561
897178
897560
897561
897176
897560
897176
897556
897151

12
13

14

897556
897562
897205
897206
897559
897562
897176
897559

Flow
235.0
235.0
235.0
235.0
235.0
235.0
705.0
705.0
705.0
705.0
705.0
705.0
235.0
235.0
235.0
235.0
235.0
235.0
470.0
470.0
470.0

L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s

Size
300x300
200x200
350x350
350x350
300x300
200x200
275x275
-

235.0
235.0
235.0
235.0
235.0
235.0

L/s
L/s
L/s
L/s
L/s
L/s

300x300
200x200
-

Flow
235.0
235.0
705.0
705.0
705.0
235.0
235.0
470.0
235.0
235.0
235.0

L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s
L/s

Size
300x300
200x200
350x350
350x350
350x350
300x300
200x200
275x275
300x300
200x200
200x200

Loss Method
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from
Coefficient from

ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE

Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table
Table

ASHRAE Table
SR4-2
SR3-1
SR4-1
SR4-2
SR5-1
SR4-1
SR3-1
SR5-1
SR4-1
SR4-1
SR4-2
SR3-1
SR4-1
SR4-2
SR5-1
SR4-1
SR5-1
SR4-2
SR5-1

Coefficient
Coefficient
Coefficient
Coefficient
Coefficient
Coefficient
Coefficient
Coefficient

from
from
from
from
from
from
from
from

ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE
ASHRAE

Table
Table
Table
Table
Table
Table
Table
Table

SR4-2
SR4-2
SR3-1
SR3-1
SR4-2
SR4-2
SR5-1
SR4-2

Velocity
2.6 m/s
2.6 m/s
5.9 m/s
5.9 m/s
0.0 m/s
5.8 m/s
5.8 m/s
5.8 m/s
5.8 m/s
0.0 m/s
2.6 m/s
2.6 m/s
5.9 m/s
5.9 m/s
0.0 m/s
6.2 m/s
6.2 m/s
0.0 m/s

Velocity Pressure
4.1 Pa
20.8 Pa
6.8 Pa
19.9 Pa
19.9 Pa
31.1 Pa
4.1 Pa
20.8 Pa
11.0 Pa
23.2 Pa
8.9 Pa

Length
228
4677
7274
306
228
4805
6657
-

2.6
2.6
5.9
5.9
0.0

m/s
m/s
m/s
m/s
m/s

Velocity
2.6 m/s
5.9 m/s
5.8 m/s
5.8 m/s
5.8 m/s
2.6 m/s
5.9 m/s
6.2 m/s
2.6 m/s
5.9 m/s
5.9 m/s

Loss Coefficient

4.1 Pa
20.8 Pa
5.8 Pa

Velocity Pressure
4.1 Pa
20.8 Pa
19.9 Pa
19.9 Pa
19.9 Pa
4.1 Pa
20.8 Pa
23.2 Pa
4.1 Pa
20.8 Pa
20.8 Pa

Pressure Loss
2.315 9.5 Pa
1.15 23.9 Pa
0.051429 1.1 Pa
0 0.0 Pa
1.410953 9.6 Pa
0 0.0 Pa
1.15 22.9 Pa
0 0.0 Pa
0 0.0 Pa
0.35 7.0 Pa
0 0.0 Pa
0 0.0 Pa
2.315 9.5 Pa
1.15 23.9 Pa
0.032727 0.7 Pa
0 0.0 Pa
0.843636 9.3 Pa
0 0.0 Pa
0 0.0 Pa
0.045918 1.1 Pa
-0.016667 -0.1 Pa

228
10954
-

Length
228
4677
3759
3515
306
228
4805
6657
228
5926
5028

Total Pressure Loss
9.5 Pa
24.9 Pa
~
~
9.6 Pa
~
22.9 Pa
~
~
7.0 Pa
~
0.0 Pa
9.5 Pa
24.5 Pa
~
~
9.3 Pa
~
1.1 Pa
~
-0.1 Pa

0 0.0 Pa
2.315 9.5 Pa
1.15 23.9 Pa
1.15 23.9 Pa
0.056529 1.2 Pa
0 0.0 Pa
0.224545 1.3 Pa
0 0.0 Pa

~
9.5 Pa
48.9 Pa
~
~
~
1.3 Pa
~

Loss Coefficient
-

-

-

-

Friction
0.30 Pa/m
2.315 2.18 Pa/m
1.201429 1.410953 1.04 Pa/m
1.15 1.04 Pa/m
0.35 00.30 Pa/m
2.315 2.18 Pa/m
1.182727 0.843636 1.62 Pa/m
0.045918 -0.016667 -

Height

Width
300

-

200

-

350

-

350

-

300

-

200

-

275

-

-

Diameter
300 200 350 350 300 200 275 -

-

Pressure Loss
0.1 Pa
10.2 Pa
3.9 Pa
3.7 Pa
0.3 Pa
0.1 Pa
10.5 Pa
10.8 Pa
0.1 Pa
12.9 Pa
11.0 Pa

otal Pressure Loss

0.30 Pa/m
2.315 2.18 Pa/m
2.356529 0.224545 -

300
-

200

-

Total Pressure Loss
0.1 Pa
10.2 Pa
7.6 Pa
~
0.3 Pa
0.1 Pa
10.5 Pa
10.8 Pa
0.1 Pa
23.9 Pa
~

-

300 200 -

Total Pressure Loss
0.1 Pa
9.5 Pa
14.0 Pa
10.2 Pa
24.9 Pa
9.6 Pa
7.6 Pa
22.9 Pa
0.3 Pa
7.0 Pa
0.0 Pa
0.0 Pa
0.1 Pa
9.5 Pa
14.0 Pa
10.5 Pa
24.5 Pa
9.3 Pa
10.8 Pa
1.1 Pa
-0.1 Pa

Section Pressure Loss
23.6 Pa
~
~
35.1 Pa
~
9.6 Pa
30.5 Pa
~
7.3 Pa
~
0.0 Pa
~
23.6 Pa
~
~
35.0 Pa
~
9.3 Pa
11.9 Pa
~
-0.1 Pa

0.1 Pa
9.5 Pa
14.0 Pa
23.9 Pa
48.9 Pa
1.3 Pa

23.6 Pa
~
~
72.8 Pa
~
1.3 Pa

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