Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Air chamber vs. surge tank in pressurized pipelines?
Air chambers and surge tanks are generally installed in water main to ease the stress on the system when valves or pumps suddenly start up and shut down. A surge tank is a chamber which contains fluid that is in direct contact with atmosphere. For positive surge, tank can store excess water so preventing the water pipes from expansion and water from compression. In case of down surge, surge tank can supply fluid to prevent formation of vapour column separation. Though if the relief of surge pressure is substantial, height of surge tank has to be large and sometimes it's not cost-effective to build such a large tank. Quite the opposite, an air chamber can be adopted in this case since air chamber is an enclosed chamber with pressurized gases inside. Pressure head of the gas inside the air chamber may combat the hydraulic transient. Volume of liquid inside the air chamber must be adequate to avoid the pressure in pipelines falling to vapour pressure. Air volume must be sufficient to produce cushioning effect to positive surge pressures. Basically air chambers can typically be designed to be more compactthan surge tanks. Air chamber has the disadvantages that regular maintenance has to be carried out to check volume of air and proper design of pressure level of gas has to be conducted.
The head (energy) loss in the piping system between points 1 and 7 is the most nearly. Solution: 3 ft. The difference between point 1 and point 7 = 10 ƒt - 7 ƒt = 3 ƒt
Define the Influence line-beam shear? 1. Replace point of interest with a link element of nominal length. If the point of interest is a reaction, place a hinge at that poin
size of sieve to analysis the grading of 10 mm size stone grit
Absolute pressure is measured from a vacuum (0 PSI) and atmospheric pressure is14.7PSIa or 14.7 PSI above a vacuum 1PSI on a tire pressure gauge is known as 1PSIg = 15.7PSIa 10PSIg
how to make a home
how to measure a distance
What is linear waterway?
Define Sounding or Sensing Devices? Sounding devices are effective in checking scour in the streambed adjacent to a bridge. Although sounding/sensing devices can be used indepe
Examine the state of stress at the junction of flange: A beam of I-section as shown in Figure (a) is subjected to a bending moment of 84.928 kN m and a shear force of 106.1 kN
finding the mean ,mode and mediam
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd