Equal percentage of valve & opening VS flow

Prem Baboo

Sr. Manager (Prod)

National Fertilizers Ltd. India

F.I.E., Institution of Engineers (India)

Technical Advisor & an Expert for www.ureaknowhow.com

Formula is Q = Q0eby

For Typical values of

Q0 1000

Qmax= 30000

Substituting these values in the above equation we can get

30000 = 1000 X eb x1

e b x 1 = 30

there fore b= ln (30)

b= 3.4011974

Stroke% y value Flow to %y Flow in kg/hr

10 0.1 Q10 1404.94759

20 0.2 Q20 1973.87773

30 0.3 Q30 2773.19476

40 0.4 Q40 3896.1933

50 0.5 Q50 5473.94739

60 0.6 Q60 7690.6092

70 0.7 Q70 10804.9029

80 0.8 Q80 15180.3222

90 0.9 Q90 21327.5572

100 1 Q100 29964.1

1,405

1,974

2,773

3,896

5,474 7,691

10,805

15,180

21,328

29,964

0

5000

10000

15000

20000

25000

30000

35000

1 3 5 7 9

Flo

w k

g/

hr

Stroke%/10