(c) In order to avoid excessively high stress in the pipeline during valve closure, it is proposed...
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(c) In order to avoid excessively high stress in the pipeline during valve closure, it is proposed that the time to fully close the valve is not shorter than 15 s. Is this a safe closure time given that the maximum allowable hoop stress in the pipe is 110 MPa? Use a steady discharge of 15 m3 /s if you were not successful with part (a). (Aide mem: hoop stress, σH= pd/2t , where p,d,t are pipe pressure, diameter and wall thickness respectively.)
Related Book For
Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
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