管道漏風(fēng)量計(jì)算方法-SMACNA，美標(biāo)US講解分析

SMACNA HVAC Air Duct Leakage Test manual, First edition, 2012

US

Duct construction leakage classification, expected leakage 

rates for sealed and unsealed ductwork, duct leakage test 

procedures, recommendations on use of leakage testing, types of test apparatus and test setup and sample leakage analysis.

Seal Class

C

B

A

Sealing Applicable

Transverse Joints Only

Transverse Joints and Seams

Joints, Seams and All Wall Penetrations

Leakage Class

Rectangular Metal

16

8

4

Round Metal

8

4

2

Static pressure

0

1

2

3

4

6

7

8

9

10

C_L

1

0.0000

1.0000

1.5692

2.0423

2.4623

3.2048

3.5425

3.8637

4.1712

4.4668

2

0.0000

2.0000

3.1383

4.0847

4.9246

6.4096

7.0851

7.7275

8.3423

8.9337

3

0.0000

3.0000

4.7075

6.1270

7.3869

9.6143

10.6276

11.5912

12.5135

13.4005

4

0.0000

4.0000

6.2767

8.1694

9.8492

12.8191

14.1701

15.4550

16.6847

17.8673

6

0.0000

6.0000

9.4150

12.2541

14.7737

19.2287

21.2552

23.1825

25.0270

26.8010

8

0.0000

8.0000

12.5533

16.3387

19.6983

25.6382

28.3403

30.9100

33.3693

35.7347

12

0.0000

12.0000

18.8300

24.5081

29.5475

38.4574

42.5104

46.3649

50.0540

53.6020

16

0.0000

16.0000

25.1067

32.6775

39.3966

51.2765

56.6805

61.8199

66.7387

71.4694

24

0.0000

24.0000

37.6600

49.0162

59.0949

76.9147

85.0208

92.7299

100.1080

107.2041