Reconsider Prob. 8–52. Using the EES (or other) software, investigate the effect of the pipe diameter on the pumping power requirement to overcome the pressure loss. By varying the pipe diameter from 2 to 4 cm, plot the pumping power as a function of the pipe diameter.

Data from problem 52

Water at 15°C (ρ = 999.1 kg/m³ and m = 1.138 × 10^-3 kg/m · s) is flowing in a 4-cm-diameter and 25-m-long horizontal pipe made of stainless steel steadily at a rate of 7 L/s. Determine

(a) The pressure drop

(b) The pumping power requirement to overcome this pressure drop. Assume flow is fully developed. Is this a good assumption?

Transcribed Image Text:

7 L/s - 25 m 4 cm