•Problem - pressure drop across a column
•
•Pressure at head of column may be 5 atm & at
end of column may be 1 atm
•Need a correction factor
•
• 3[(Pi/P)2 -1]
• j = ------------------
• 2[(Pi/P)3 – 1]
•
•Where Pi = inlet pressure
&
• P = outlet pressure (atmospheric)