Ahmed, F;
Eames, I;
Azarbadegan, A;
Moeendarbary, E;
(2022)
Acoustics and vibrations in a complex piping network with pump startup–shutdown transients.
International Journal of Mechanical Sciences
, 227
, Article 107357. 10.1016/j.ijmecsci.2022.107357.
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Abstract
Pump dynamic operational conditions result in extreme transient events that can enhance the response of piping networks. The predominant transients during rapid startup and shutdown are mainly studied for centrifugal pumps and are scarce for reciprocating pumps. Our study extends the conventional steady-state analysis to include the effect of reciprocating pump dynamic loading on pulsatile flow-induced acoustics and vibrations in a complex piping network. The forced response resulting from acoustical–structural coupling is assessed by utilising the one-dimensional multiphysics piping acoustic model and beam structural model. The network responses to pulsatile flows during dynamic pump loading (rapid start-up-shutdown events) are compared to the responses due to pulsatile flows during steady-state pump loading. With pump startup–shutdowns operations accompanied by pulsatile flows, the network response is the result of the combination of the transient and steady-state characteristics of plane acoustic waves and structural vibrations. The dynamic pump loading excites the fundamental, low-frequency acoustic eigenmode that causes transient loading of pipeline similar to reservoir–pipe–valve (RPV) systems.
| Type: | Article |
|---|---|
| Title: | Acoustics and vibrations in a complex piping network with pump startup–shutdown transients |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.ijmecsci.2022.107357 |
| Publisher version: | https://doi.org/10.1016/j.ijmecsci.2022.107357 |
| Language: | English |
| Additional information: | © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Reciprocating pump, Pulsation, Startup–shutdown, Transient flow, Piping network |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10152447 |
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