FAN HORSE POWER COMPUTATION

From : Trane Air Conditioning Manual

Brake Power = Qx da xhafan efficiency

AHU PER FLOOR

Gradual Contrac

tion Loss(in)

Take Off

Loss(in)

Friction Loss Due

to Longest Run(in)

hw(m)

γw(kN/m3)

γa(kN/m3) ha(m) Q(m3/

s)Efficie

ncyPower (kW)

Brake Power (HP)

FAN (HP)

FIRST FLOORAHU

1 0.51348 4.890.17684

3520.141

78 9.81 0.012 115.90230 28.96 85% 47.386

3163.546

09 64AHU

2 0.53000 4.7210.15648

4350.137

39 9.81 0.012 112.31246 32.36 85% 51.309

6268.807

33 69AHU

3 0.83000 5.6710.10006

5760.167

71 9.81 0.012 137.10293 79.23 85% 153.35

53205.65

2820

6AHU

4 0.79000 5.090.36521

5760.158

67 9.81 0.012 129.71199 35.7 85% 65.374

8487.669

11 88AHU

5 0.78060 4.7470.36230

740.149

64 9.81 0.012 122.33230 35.7 85% 61.655

4882.681

36 83AHU

6 0.71378 2.750.11919

4020.091

03 9.81 0.012 111.43130 64.96 85% 102.19

17137.04

1313

7SECOND FLOORAHU

1 0.98808 4.9660.29684

3690.158

81 9.81 0.012 129.83055

20.1577 85% 36.947

0949.546

86 50AHU

2 0.93189 4.5360.31596

50.146

95 9.81 0.012 120.12962 32.9 85% 55.796

6774.824

57 75AHU

3 1.63181 6.5740.25040

9760.214

84 9.81 0.012 175.63419 37.082 85% 91.946

36123.30

2112

3AHU

4 1.08436 5.5910.36106

1540.178

77 9.81 0.012 146.14509 24.16 85% 49.847

5166.846

62 67AHU

5 1.14232 5.1070.12386

3930.161

92 9.81 0.012 132.36992 50.719 85% 94.781

23127.10

3712

7AHU

6 0.78060 7.10.19845

7380.205

26 9.81 0.012 167.80054 19.82 85% 46.952

5762.964

43 63AHU

7 0.26371 6.440.19003

520.175

15 9.81 0.012 143.18183 17.29 85% 34.949

8446.868

51 47THIRD FLOORAHU

1 0.26371 5.1250.19324

20.141

82 9.81 0.012 115.93612 12.296 85% 20.125

4226.988

63 27AHU

2 0.25000 4.7920.11151

960.130

93 9.81 0.012 107.03766 9.611 85% 14.523

3719.476

16 19AHU

3 0.25500 3.4580.12709

70.097

56 9.81 0.012 79.75811 9.611 85% 10.821

9614.512

48 15AHU

4 0.26400 5.2080.20797

8960.144

31 9.81 0.012 117.97212 12.296 85% 20.478

8527.462

59 27

FIRST FLOOR ( ANNEX)AHU 0.64290 4.89 0.33259 0.149 9.81 0.012 121.82 51.16 85% 87.989 117.99 11

1 548 02 527 37 57 8AHU

2 0.44870 4.7210.59735

3760.146

52 9.81 0.012 119.78065

11.33544 85% 19.168

4725.705

34 26AHU

3 0.44873 5.6710.60350

2490.170

81 9.81 0.012 139.64031

11.33544 85% 22.346

629.967

29 30AHU

4 0.44400 5.090.21615

0380.146

09 9.81 0.012 119.42957 51.16 85% 86.259

06115.67

5311

6

2ND FLOOR ( ANNEX)AHU

1 0.45100 4.890.21950

9370.141

27 9.81 0.012 115.49076 19.5 85% 31.793

9342.636

36 70AHU

2 0.26240 4.7210.21627

1840.132

11 9.81 0.012 107.99623 9.8 85% 14.941

620.037

01 65AHU

3 0.24550 5.6710.20900

8490.155

63 9.81 0.012 127.22567 12.44 85% 22.343

8229.963

5612

0AHU

4 0.18330 4.440.23314

8720.123

39 9.81 0.012 100.86755 5.3 85% 7.5472

6610.121

05 90AHU

5 0.26432 5.7120.23669

940.157

85 9.81 0.012 129.04328 8.1 85% 14.756

4819.788

76 20AHU

6 0.34300 6.3210.18875

9970.174

10 9.81 0.012 142.33057 12.99 85% 26.101

7535.003

03 35AHU

7 0.24100 5.120.17331

6380.140

61 9.81 0.012 114.94674 8.531 85% 13.843

91 18.565 19

3RD FLOOR ( ANNEX)AHU

1 0.50184 4.890.12142

8440.140

07 9.81 0.012 114.50958 62.93 85% 101.73

3136.42

62 70AHU

2 0.35810 4.7210.06884

1630.130

79 9.81 0.012 106.92181 42.5 85% 64.153

08136.42

62 65AHU

3 0.34000 5.6710.07258

80.154

56 9.81 0.012 126.35501 37.78 85% 67.393

386.030

712

0AHU

4 0.51900 5.090.10363

140.145

14 9.81 0.012 118.65031 44.397 85% 74.367

7890.375

91 90AHU

5 0.42778 4.820.09014

3120.135

62 9.81 0.012 110.86768 44.33 85% 69.384

9199.728

8410

0

4TH FLOOR ( ANNEX)AHU

1 0.36660 4.890.04104

3330.134

59 9.81 0.012 110.03108 51.95 85% 80.698

09108.21

79 70AHU

2 0.39698 4.7210.04457

9110.131

16 9.81 0.012 107.22541 58.57 85% 88.661

54118.89

71 65AHU

3 0.44100 5.6710.10314

8080.157

91 9.81 0.012 129.08749 52.947 85% 96.491

23129.39

6912

0