ENTC 303: Announcements

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

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:

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

Series

Parallel

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

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