52 kg/m, and ? r horizontal pipe with an average velocity of 3.5 m/s, Determine

Question

52 kg/m, and ? r horizontal pipe with an average velocity of 3.5 m/s, Determine and thus zero loss for the kinetic energy cone "equivalent drop per 10 m of the pipe. diameter" o tionless flow relations Reconsider Prob. 14-48. Using an appropri- ate software, investigate the effect of the pipe on the pressure drop for the same constant flow Let the pipe diameter vary from 1 f 1 cm. Tabulate and plot the results and draw to 10 cm in incre ions. oil at 80-F (?-56.8 Ibrnft, and ?-00278 lbm/ft-s) ng steadily in a 0.5-in-diameter, 175-ft-long pipe. Dur- he flow, the pressure at the pipe inlet and exit is measured e s0 psi and 14 psi, respectively. Determine the flow rate et oil through the pipe assuming the pipe is (a) horizontal, owing FIGURE P14 A isclined 20 upward, and (c) inclined 20 downward. 14-51 Liquid ammonia -20°C at -20°C is flowing through a m-long section of a 5-mm-diameter copper tube at a rate 14-60 Repeat Prob. I (KL= 0.12). f009 kg/s. Determine the pressure drop, the head loss, and 14-61 A horizontal he pumping power required to overcome the frictional losses D,-8cm to D, 16 in the smaller section section is 10 m/s and energy correction facto the error that would ha n the tube. Answers: 1240 kPa, 189 m, 0.167 kW Minor Losses 14-52C During a retrofitting project of a fluid flow system outlet, determine the been used. Answers o reduce the pumping power, it is proposed to install vanes nto the miter elbows or to replace the sharp turns in 90 rier elbows by smooth curved bends. Which approach will touit in a greater reduction in pumping power requirements? Water -53C Define equivalent length for minor loss in pipe Ibw. How is it related to the minor loss coefficient? I-SiC The effecet of rounding of a pipe inlet on the loss n very significant. gligible, (b) somewhat significant, or FIGURE

Explanation / Answer

Solution:

In the retrofiiting project, by installing vanes in the miter elbow will result in a smaller head loss compared to that of smooth curved bends.

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