Question 17.3: Determine the membrane ligament efficiency in a header where...

Calculate the equivalent diameter D_{E} using Eq. (17.4) as follows:

D_{ E }=\frac{1}{t}\left(d_{0} T_{0}+d_{1} T_{1}+d_{2} T_{2}+\cdots+d_{n} T_{n}\right)                (17.4)

p = 4in.

d_{0} = 1.625in.            T_{0} = 0.125in.

d_{1} = 1.5in.              T_{1} = 1.125in.

d_{2} = 1.375in.            T_{2} = 0.25in.

D_{ E }=\frac{1.00}{1.50} × (1.625 × 0.125 + 1.5 × 1.125 + 1.375 × 0.25)

= 1.490in.