Scholarly record
A REVIEW OF HYDRAULIC ASPECTS AND CALCULATION METHODS OF LOCAL HEAD LOSSES FOCUSSING ON GATE VALVES AND CHECK VALVES
Abstract
Energy efficiency is a key factor of today?s engineering practice. Water and wastewater systems (made up of supply and disposal networks, treatment plants etc.) often contain under pressure sections. Their energy efficiency strongly depends on the accuracy of the head loss evaluation including local head loss. In these systems a great amount of local head loss is given by different valves. Gate valves and check valves are being widely used in water and wastewater systems, therefore this article focuses especially on these two types of pressure system elements. This paper reviews the basic parameters regarding the study of local head losses in pipeline systems: significant liquid properties, the bases of theoretical approaches of head loss calculation, methods for evaluation/approximation of local hydraulic head losses, specific features regarding gate type valves and check valves. Comparison of the coefficients given in different literature sources for calculating local head losses in valves will be performed. In conclusion it is showed the importance of knowing the loss coefficients not just by type of the element, but also regarding to the manufacturer.
Publication Impact Profile
Publication details
References14
Donald S. Miller, Internal flow systems – 2nd ed., British Hydromechanics Research Association, United Kingdom, 1990, pp. 6-382;
J. M. McDonough, Lectures in elementary fluid dynamics: Physics, Mathematics and Applications – 5th ed., Mechanical Engineering Textbook Gallery, USA, 2009, pp.4-152;
Ioan David, Hidraulica – Volumul I, II, Institutul Politehnic ”Traian Vuia” Timișoara, Romania, 1984, pp. 264-279;
Franck M. White, Fluid mechanics – 7th ed., McGraw-Hill, USA, 2011, pp.3-826;
Bruce E. Larock, Roland W. Jeppson, Gary Z. Watters, Hydraulics of pipeline systems, CRC Press LLC, USA, 1999, pp. 10-378;
Yunus A. Çengel, Fluid mechanics: Fundamentals and applications, McGraw-Hill, USA, 2006, pp. 15-888;
Dumitru Cioc, Hidraulică, Ed. Didactică și pedagogică București, Romania, 1975, pp. 33-613;
Joseph H. Spurk, Nuri Aksel, Fluid Mechanics – 2nd ed., Springer-Verlag Berlin Heidelberg, Germany, 2008, pp. 1-517;
Herbert Oertel jr., Prandtl’s Essentials of Fluid Mechanics – 2nd ed., Springer-Verlag New York, USA, 2004, pp. 66-130;
I. E. Idel’chik, Handbook of hydraulic resistance, IPST, Izrael, 1966, pp. 2-441;
Flow of Fluids through Valves, Fittings and Pipes. Metric Edition-SI Units, Technical Paper No. 410M, Crane Co., USA, 1982, pp. 2-9 – A-27
Philip L. Skousen, Valve handbook, McGraw-Hill, USA, 1997, pp. 1-444.
Peter Smith, R. W. Zappe, Valve Selection Handbook: Engineering Fundamentals for Selecting the Right Valve Design for Every Industrial Flow Application – 5th ed., Elsevier Science & Technology, USA, 2004, pp. 2-168.
Cristea Mateescu, Hidraulica, Ed. de stat didactică și pedagogică București, Romania, 1961, p. 404;
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
