Determine the head loss due to friction, Civil Engineering

Assignment Help:

Determine the Head Loss Due To Friction

Determine the head loss due to friction using the Darcy-Weisbach equation. The water is pumped at 3.0 gallons per minute, has a temperature of 60 °F and is pumped through a 1inch schedule-40 steel pipe. The equivalent length of the piping and minor losses is 258 ft.

 Steps to solve for the Reynolds Number:  

What is the pipe internal diameter?    0.0874 ft

 What is the pipe internal area?    0.00600 ft2

 What is the velocity of the water flowing in the pipe?    1.11 ft/sec  

(3.0gpm)(0.002228 cƒs/gpm) 0.00600 ƒt2   

What is the kinematic viscosity?   1.27 × 10-5 ƒt2 /sec 

 Calculate the Reynolds Number:   8.0 × 103

 (0.0874 ƒt)(1.11ƒt /sec) / 1.217 × 10-5 ⁄ ƒt2 sec

 Steps to solve for the Relative Roughness:

 What is the Specific Roughness of the pipe material?   0.0002

 What is the pipe internal diameter?   0.0874 ft

 Calculate the Relative Roughness:   0.0002/0.0874 ft = 0.00228

 Steps to solve for the friction factor "f": 0.0354 to 0.0361

 Apply the Relative Roughness and Reynolds Number to the Moody Diagram or

Darcy Friction Factor table

Calculate the head loss due to friction using the Darcy equation: hƒ = ƒLv2/2Dg

(0.0354)(258 ƒt)(1.11 ƒt /sec)2 /2(0.0874 ƒt)(32.2 ????/sec2) = 2.0 ƒt

(0.0361)(258 ƒt) (1.11 ƒt /sec)2 /2(0.0874 ƒt)(32.2 ƒt /sec2) = 2.04 ƒt 

 


Related Discussions:- Determine the head loss due to friction

Quantity calculation for subgrade preparation, reparation of subgrade in sq...

reparation of subgrade in sqm for a road of span 12 km and width 5.25m,with shoulders of 0.75m span on both the sides...considering extrawidening too......plz help...i m preparing

Differences between epoxy grout and cement grout, Differences between epoxy...

Differences between epoxy grout, cement grout and cement mortar? Epoxy grout comprises epoxy resin, epoxy hardener and aggregates/sand.As a matter of fact, there are various ty

Surface-protecting fenders and energy-absorbing fenders, Question What ...

Question What is main difference in application of surface-protecting fenders and energy-absorbing fenders ? Answer Surface-protecting fenders are fenders that make

Find the cumulative distribution function, Find the Cumulative Distribution...

Find the Cumulative Distribution Function: Find the cdf of Y = Z 2 where Z - N (0,l) Solution: F(y)= P(Y ≤ y) = p(z 2 ≤y) = P(-√y≤ √z≤√y) = ?(√y)- ?(-√y) = ?(√y)

Define the finish to finish activity, A finish-to-finish activity is best d...

A finish-to-finish activity is best described as: The "from" activity must finish before the "to" activity can finish The "from" activity must finish before the "to" acti

On-line storage vs. off-line storage, On-line storage vs. off-line storage ...

On-line storage vs. off-line storage Design of storage pond is commonly divided into off -line storage and on-line storage. The on-line storage concept includes inclusion of s

Barometric leveling, what are advantages and disadvantages of barometric le...

what are advantages and disadvantages of barometric levelling

Structural dynamics, A machine of 850 kg mass is acted upon by an external ...

A machine of 850 kg mass is acted upon by an external force of 1355 N at a frequency of 650 rpm. To reduce the effects of vibrations on the supporting structure, isolators having s

Which are the colloidal impurities in water, Q. Which are the Colloidal Imp...

Q. Which are the Colloidal Impurities in water? The finely divided particles of soil such that their small quantities are not Visible to the naked eye are

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd