Calculate the total head loss between points, Electrical Engineering

Look at figure below and use.  Water (50°F) flows at 250 gpm through the pipe system at the bottom of this page. All piping is four inch (4") diameter cast iron. The distance between points A and B along the open flow path is 500 ft. Calculate the total head loss between points Aand B. Assume A and Bare at the same elevation. Use the following minor loss coefficients for the fittings:

Fitting Minor Loss Coefficient

Open Valve                                               0.20

90° Smooth Bend                                     0.35 (r/d = 1)

0.19 (r/d = 2)

0.16 (r/d = 4)

0.21 (r/d = 6)

0.28 (r/d = 8)

0.30 (r/d = 10)

Tee?                                                              0.6 (Straight-through flow)

                                                                   1.8 (Side-Outlet Flow)

90° Elbow                                                             0.30

474_Calculate the total head loss between points.png

A town is installing a new 10" main to carry drinking water. The only section remaining to be installed is a segment through the middle of town. However, the excavators discover an archaeological site. The town decides to split the main into two sections, each looping around the site and reconnecting at the other end. The mayor decrees that "the velocity in each branch around the site shall be equal". The town lays 800 feet of 6" pipe to the north of the site and connects to the 10" main leading away from town. However, the town then finds out there is no more 6" pipe. Anywhere. The only pipe available is 8" pipe. The contractor, noting that "shall" is a legally binding term when a contract is signed, must lay the proper amount of 8" pipe such that the velocity in the two branches is the same. Determine: a) the length of 8" pipe required, b) if instead, 800 feet of 8" pipe is laid parallel to the 6" pipe, the minor loss coefficient, K, for a valve that must be placed in the 8" line to exactly cause the velocities in the two pipes to balance. Assume for purposes of solving this problem that turbulent flow exists and the resistance coefficients, f, for the 6" pipe and 8' pipe are 0.023 and 0.019, respectively.

Posted Date: 2/15/2013 5:43:31 AM | Location : United States







Related Discussions:- Calculate the total head loss between points, Assignment Help, Ask Question on Calculate the total head loss between points, Get Answer, Expert's Help, Calculate the total head loss between points Discussions

Write discussion on Calculate the total head loss between points
Your posts are moderated
Related Questions
A dc machine, operating as a generator, develops 400 V at its armature terminals, corresponding to a field current of 4 A, when the rotor is driven at 1200 r/min and the armature c

Q. What are the advantages and disadvantages of a R-C coupled amplifier. Advantages · It has excellent frequency response. The gain is constant over the audio frequency ra

explain the properties and the application of high resistivity materials related with tunsten and carbon?

A three-phase, wye-connected, cylindrical-rotor synchronous generator rated at 10 kVA and 230  V has a synchronous reactance of 1.5per phase and an armature resistance of 0.5  pe

Explain electrical contact materials. Electrical contact materials: some elements, in their relatively pure forms as copper, nickel, molybdenum, palladium, silver, tungsten and

Q. The inductance per unit length in H/m for parallel-plate infinitely long conductors in air is given by L = µ 0 d/w = 4π×10 -7 d/w, where d and w are inmeters. Compute L (per un

Explain Acceptance cone? The fibre air - core interface is display below: In this figure Omax is the maximum angle, inside that the rays undergo total internal reflecti


Q. Different kinds of high-tension fuses and low-tension fuses ? Ans: There are two kinds of fuses they are a) L.V Fuses - 1) HRC cartridge fuses.   - 2) Semi enclosed re

What do you understand by solid modeling and wireframe modeling in CAD systems? Explain and compare the both modellings. Describe the following 1. Boundary representation 2.