Question

Pressure drop due to pipe fittings can be estimated by the following equation, where, Lₑ = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Lₑ/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around

a.

5 and 10

b.

45 and 75

c.

180 and 300

d.

300 and 500

Answer: (b).45 and 75

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Q. Pressure drop due to pipe fittings can be estimated by the following equation, where, Lₑ = equivalent length of straight pipeline which will incur the same frictional loss as the...

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