Production areaAHU-01

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 80 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

5 0.06889

b- Take off friction loss (Ht)

No. of take offs take offs

1 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 2 0.1

Flexible Duct 0 0.06

f- Variable Air Volume (VAV) 0 0.272

g Air outlet 2 0.1

h Plemum Box 0 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-0114836 cfm

0.1 in.w./100ft

262.4 ft

0.262 in w.g

1660 fpm

0.06889 in. w.g

0.34445 in. w.g

0.02 in. w.g

0 in. w.g

0 in. w.g

0.2 in. w.g

0

0

0.2

0

1.027 in. w.g

0.102685 in. w.g

1.130 in. w.g

281.254215 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Production areaAHU-02

AHU flow rate = 13143 cfm

Based on the design drawings friction loss will be 0.1 in.w./100ft

duct length (L) 41 m 134.48 ft

1- Duct friction loss = L x 0.1 0.134 in w.g

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V = 1600 fpm

0.064 in. w.g

No. of Elbows

6 0.064 0.384 in. w.g

b- Take off friction loss (Ht)

No. of take offs

1 0.02 0.02 in. w.g

c- Motorized damper 0 0.06 0 in. w.g

d- Fire damper 0 0.06 0 in. w.g

e- Volume damper 2 0.1 0.2 in. w.g

Flexible Duct 0 0.06 0

f- Variable Air Volume (VAV) 0 0.272 0

g Air outlet 2 0.1 0.2

h Plemum Box 0 0.1 0

Total 0.938 in. w.g

0.093848 in. w.g

total friction loss 1.032 in. w.g

257.049672 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

Production areaAHU-03

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 72 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

3 0.0801025

b- Take off friction loss (Ht)

No. of take offs take offs

1 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 2 0.1

Flexible Duct 0 0.06

f- Variable Air Volume (VAV) 0 0.272

g Air outlet 2 0.1

h Plemum Box 0 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-0315170 cfm

0.1 in.w./100ft

236.16 ft

0.236 in w.g

1790 fpm

0.0801025 in. w.g

0.2403075 in. w.g

0.02 in. w.g

0 in. w.g

0 in. w.g

0.2 in. w.g

0

0

0.2

0

0.896 in. w.g

0.08964675 in. w.g

0.986 in. w.g

245.5424483 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Production areaAHU-04

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 87 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

8 0.08464

b- Take off friction loss (Ht)

No. of take offs take offs

1 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 2 0.1

Flexible Duct 0 0.06

f- Variable Air Volume (VAV) 0 0.272

g Air outlets 1 0.1

h Plemum Box 0 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-0416437 cfm

0.1 in.w./100ft

285.36 ft

0.285 in w.g

1840 fpm

0.08464 in. w.g

0.67712 in. w.g

0.02 in. w.g

0 in. w.g

0 in. w.g

0.2 in. w.g

0

0

0.1

0

1.282 in. w.g

0.128248 in. w.g

1.411 in. w.g

351.271272 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Production areaAHU-05

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 82 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

2 0.0801025

b- Take off friction loss (Ht)

No. of take offs take offs

1 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 2 0.1

Flexible Duct 0 0.06

f- Variable Air Volume (VAV) 0 0.272

g Jet diffusers 1 0.1

h Plemum Box 0 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-0515061 cfm

0.1 in.w./100ft

268.96 ft

0.269 in w.g

1790 fpm

0.0801025 in. w.g

0.160205 in. w.g

0.02 in. w.g

0 in. w.g

0 in. w.g

0.2 in. w.g

0

0

0.1

0

0.749 in. w.g

0.0749165 in. w.g

0.824 in. w.g

205.1962935 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Production areaAHU-06

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 53 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

8 0.05476

b- Take off friction loss (Ht)

No. of take offs take offs

1 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 2 0.1

Flexible Duct 3 0.06

f- Variable Air Volume (VAV) 1 0.272

g Air outlets 2 0.1

h Plemum Box 1 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-068412 cfm

0.1 in.w./100ft

173.84 ft

0.174 in w.g

1480 fpm

0.05476 in. w.g

0.43808 in. w.g

0.02 in. w.g

0 in. w.g

0 in. w.g

0.2 in. w.g

0.18

0.272

0.2

0.1

1.584 in. w.g

0.158392 in. w.g

1.742 in. w.g

433.835688 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Production areaAHU-07

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 50 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

7 0.04761

b- Take off friction loss (Ht)

No. of take offs take offs

2 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 2 0.1

Flexible Duct 3 0.06

f- Variable Air Volume (VAV) 1 0.272

g Air outlets 2 0.1

h Plemum Box 1 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-075897 cfm

0.1 in.w./100ft

164 ft

0.164 in w.g

1380 fpm

0.04761 in. w.g

0.33327 in. w.g

0.04 in. w.g

0 in. w.g

0 in. w.g

0.2 in. w.g

0.18

0.272

0.2

0.1

1.489 in. w.g

0.148927 in. w.g

1.638 in. w.g

407.911053 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Production areaAHU-08

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 48 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

0 0.05776

b- Take off friction loss (Ht)

No. of take offs take offs

1 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 1 0.1

Flexible Duct 3 0.06

f- Variable Air Volume (VAV) 1 0.272

g Air outlets 1 0.1

h Plemum Box 1 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-089764 cfm

0.1 in.w./100ft

157.44 ft

0.157 in w.g

1520 fpm

0.05776 in. w.g

0 in. w.g

0.02 in. w.g

0 in. w.g

0 in. w.g

0.1 in. w.g

0.18

0.272

0.1

0.1

0.929 in. w.g

0.092944 in. w.g

1.022 in. w.g

254.573616 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Production areaAHU-09

AHU flow rate =

Based on the design drawings friction loss will be

duct length (L) 32 m

1- Duct friction loss = L x 0.1

2- Duct fittings:-

a- Elbows

Hf = C x Hv

where C is loss coeffecient C= 0.4 and V is velocity V =

No. of Elbows

0 0.0455625

b- Take off friction loss (Ht)

No. of take offs take offs

2 0.02

c- Motorized damper 0 0.06

d- Fire damper 0 0.06

e- Volume damper 1 0.1

Flexible Duct 3 0.06

f- Variable Air Volume (VAV) 1 0.272

g Air outlets 2 0.1

h Plemum Box 1 0.1

Total

total friction loss

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa

Hf = C x (V/4000)2

Hf = 0.4 x (1445/4000)2

Elbows total friction loss (Hf6)=

take off total friction loss (Ht5)=

safety 10 %

AHU-095216 cfm

0.1 in.w./100ft

104.96 ft

0.105 in w.g

1350 fpm

0.0455625 in. w.g

0 in. w.g

0.04 in. w.g

0 in. w.g

0 in. w.g

0.1 in. w.g

0.18

0.272

0.2

0.1

0.997 in. w.g

0.099696 in. w.g

1.097 in. w.g

273.067344 Pa

Selected external static pressure is 1100 pa ,it is covering the calculated static pressure 540 pa