838Chemical EngineeringMedium
A perforated plate has holes of diameter dn arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by________?
A(ph – dh)/ph
B(ph – dt)/ph
C(ph – dh. dt/2)/ph
D(ph – dh)/dh
Correct answer
B. (ph – dt)/ph
Explanation
The correct answer is (ph – dt)/ph.