For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is
A. $$\frac{{{{\text{d}}_1}}}{{{{\text{d}}_1} + {{\text{d}}_2}}}$$
B. $$\frac{{{{\text{d}}_2}}}{{{{\text{d}}_1} + {{\text{d}}_2}}}$$
C. $$\frac{{{{\text{d}}_1} + {{\text{d}}_2}}}{{{{\text{d}}_1}}}$$
D. $$\frac{{{{\text{d}}_1} + {{\text{d}}_2}}}{{{{\text{d}}_2}}}$$
Answer: Option A
This Question Belongs to Chemical Engineering >> Process Equipment And Plant Design
Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.
A. $$\frac{1}{8}$$ and $$\frac{1}{{64}}$$
B. $$\frac{1}{{64}}$$ and $$\frac{1}{8}$$
C. $$\frac{1}{2}$$ and 8
D. $$\frac{1}{2}$$ and 5
A. Less than
B. 1.25-1.50 times
C. 2.5 times
D. One-fourth of
Value of Peclet number = 0, is the representative of
A. Laminar flow
B. Complete back mixing
C. Plug flow
D. Eddy diffusivity = 0
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