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ENTC 303: Announcements

ENTC 303: Announcements. Homework assignment #7 From Mott:11.1, 11.3, 11.5, 11.9, 11.16. Due Thursday, November 6 th before 3:35 pm For more information, go to: http://etidweb.tamu.edu/classes/entc303/ Exam II: November 20 th ( Thu) Chapters: Mott’s 8 – 12 Homeworks : 5 – 8.

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ENTC 303: Announcements

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  1. ENTC 303: Announcements • Homework assignment #7 • From Mott:11.1, 11.3, 11.5, 11.9, 11.16. • Due Thursday, November 6thbefore 3:35 pm • For more information, go to: • http://etidweb.tamu.edu/classes/entc303/ • Exam II: November 20th (Thu) • Chapters: Mott’s 8 – 12 • Homeworks: 5 – 8

  2. Society of Manufacturing Engineers SME chapter S099 WE GET HIRED WHAT: 3ndGeneral Meeting WHERE: THOM 112D WHEN: 7 pm, Monday, Nov 3rd , 2014 GUEST SPEAKER:

  3. Chapters 11 & 12: Pipe Line Systems • Series • Parallel • Or combination of both Series Parallel

  4. Series Pipe Line Systems • Class I • Known: pipe size, types of minor losses, flow rate • Goal: To determine pressure at a specific point, total head or elevations • Class II • Known: pipe size, types of minor losses, elevations, and pressure at specific points • Goal: To determine flow rate

  5. Series Pipe Line Systems • Class III • Known: Flow rate and general layout • Goal: To determine pipe size • Solution methods • http://etidweb.tamu.edu/classes/entc303/

  6. Class I: Series Pipe Line Systems • hL = Energy losses due: • Pipe friction • Minor losses • Valves • Exit and entrance losses • Enlargements/Contractions • Bends/elbows

  7. Class I: Example • Calculate the power supplied to the pump in Fig. 11.2. The pump is 76% efficient, methyl alcohol flows at 0.015 m3/sec at 25° C. The suction pipe diameter is 102.3 mm, and 15 m long. The discharge pipe diameter is 52.5 mm, and 200 m long. The entrance is square-edged type, the elbows are standard and the globe valve is fully open.

  8. Moody Chart D/e f Re

  9. Class II: Example • Oil flows in 6-in pipe (SCH 40) steel pipe with a pressure drop of 60 kPa per 100 m. S.G. = 0.88, m = 9.5 x 10-3 Pa-sec. Determine the flow rate.

  10. Moody Chart D/e f Re

  11. Example • A lubricating oil needs to be pumped from 1 to 2 with a maximum pressure drop of 60 kPa. The oil’s S.G. is 0.88, m = 9.5 e 10-3 Pa-s. Determine the flow rate, class type and solution method.

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