What is the correct Entity X in the equivalent diameter of a Triangular pitch?

D = \(\frac{4(\frac{X}{2}Pt^2-\frac{\frac{1}{2}πOD^2}{4})}{\frac{1}{2}πOD}\)

In the calculation of flow area for a shell and tube heat exchanger, which is the correct formula?

Where C = Clearance, Pt = Pitch, ID = Inner Diameter, B = Baffle spacing.

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1.	What is the correct Entity X in the equivalent diameter of a Triangular pitch?
A.	D = \(\frac{4(\frac{X}{2}Pt^2-\frac{\frac{1}{2}πOD^2}{4})}{\frac{1}{2}πOD}\)
B.	0.23
C.	0.027
D.	0.86
E.	0.086
Answer» D. 0.86

Discussion

2.	In the calculation of flow area for a shell and tube heat exchanger, which is the correct formula?
A.	Where C = Clearance, Pt = Pitch, ID = Inner Diameter, B = Baffle spacing.
B.	A = \(\frac{ID×Pt×C}{B}\)
C.	A = \(\frac{ID×Pt×B}{C}\)
D.	A = \(\frac{Pt×C×B}{ID}\)
E.	A = \(\frac{ID×C×B}{Pt}\)
Answer» E. A = \(\frac{ID×C×B}{Pt}\)

Discussion