Question

Find the fractional hole? If K’= 0.905, Hd=10 m^2 and pitch is 5 m^2

(a) 5.22

(b) 3.62

(c) 5.66

(d) 3.63

This question was posed to me in an internship interview.

My doubt stems from Tray Capacity Limits in portion Tray Design and Operation of Distillation Design

Answer 1

The correct answer is (b) 3.62

Easy explanation: As K’ (Hd/pitch)2  m2 = 0.905(10/5) 2  m^2 = 3.62.