Pressure Drop
Ariel performance program utilizes
inputs for the pressure at the customer line connection, inlet and outlet.
Pressure
drops for suction, interstage and discharge equipment should be considered
while defining the pressures in the performance program.
Typical suction and discharge
pressures are defined at the customers line connections. Any
pulsation vessels, knock out drums or coolers should be accounted for
in the pressure loss section of the performance input.
The Ariel performance program
will assume average values for these pressure losses for each interstage
and final discharge pressure, as shown in the table below. These
values can be manually input if known. The
first stage suction pressure loss is initially set at 0 psi, any equipment
upstream of the cylinder flange should be input.
|
Flange Pressure |
Pressure Loss |
Not To Exceed |
|
35 psia and below |
5% |
1 psi |
|
36 psia to 250 psia |
3% |
5 psi |
|
251 psia to 1000 psia |
2% |
10 psi |
|
1001 psia and above |
1% |
|
Reference Ariel
Calculation Method.
Ariel
Corporation Application Manual
30 July 2002