DSpace Repository

Development of an experimental diaphragm valve used for velocity profiling of such devices

Show simple item record

dc.contributor.author Humphreys, P.
dc.contributor.author Erfort, E.
dc.contributor.author Fester, V.
dc.contributor.author Chhiba, M.
dc.contributor.author Kotze, R.
dc.contributor.author Philander, O.
dc.contributor.author Sam, M.
dc.contributor.other Central University of Technology, Free State, Bloemfontein
dc.date.accessioned 2015-09-29T13:28:15Z
dc.date.available 2015-09-29T13:28:15Z
dc.date.issued 2010
dc.date.issued 2010
dc.identifier.issn 16844998
dc.identifier.uri http://hdl.handle.net/11462/559
dc.description Published Article en_US
dc.description.abstract The design, manufacture and use of diaphragm valves in the minerals industry is becoming increasingly important since this sector is restricted from using excessive amounts of water for their operations. This forces a change in the flow properties of these devices from turbulent to laminar in nature and thus necessitates the characterization of these flows for future designs. Furthermore, diaphragm valves have a short service life due to a variety of reasons that includes the abrasive nature of the flow environment. This paper describes the activities of the Adaptronics Advanced Manufacturing Technology Laboratory (AMTL) at the Cape Peninsula University of Technology in the research and development of diaphragm valves using rapid prototyping technologies. As a first step, an experimental diaphragm valve was reverse engineered and retrofitted with ultrasonic transducers used in Ultrasonic Velocity Profiling (UVP) measurements. The use of this device enables measurements of velocity profiles to gain insight into the flow structure within the valve and the increased pressure losses generated within the valve. It also showed that components fabricated using the Z-Corporation machine could withstand the working environment of diaphragm valves. Research is now conducted on ultrasonic transducer placement in the device to further enhance the velocity profiling through the device. As a second step we produced a thin-walled stainless steel diaphragm valve using rapid prototyping technology and investment casting processes. A study of the durability of this device will be conducted and certain geometric and manufacturing aspects of this valve will be discussed. en_US
dc.format.extent 3 470 438 bytes, 1 file
dc.format.mimetype Application/PDF
dc.language.iso en_US en_US
dc.publisher Journal for New Generation Sciences, Vol 8, Issue 2: Central University of Technology, Free State, Bloemfontein
dc.relation.ispartofseries Journal for New Generation Sciences;Vol 8, Issue 2
dc.subject Reverse engineering en_US
dc.subject Rapid prototyping en_US
dc.subject Ultrasonic velocity profiling en_US
dc.subject Flow characterization en_US
dc.subject Investment casting en_US
dc.subject Diaphragm valve en_US
dc.title Development of an experimental diaphragm valve used for velocity profiling of such devices en_US
dc.type Article en_US
dc.rights.holder Central University of Technology, Free State, Bloemfontein

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


My Account