Wave tracking method of hydraulic transients in pipe systems with pump shut-off under simultaneous closing of spherical valves

Zhang, Zhengji

doi:10.1016/j.renene.2018.07.119

Full metadata record

DC Field	Value	Language
dc.contributor.author	Zhang, Zhengji	-
dc.date.accessioned	2018-09-17T14:52:43Z	-
dc.date.available	2018-09-17T14:52:43Z	-
dc.date.issued	2018-08-01	-
dc.identifier.issn	0960-1481	de_CH
dc.identifier.issn	1879-0682	de_CH
dc.identifier.uri	https://digitalcollection.zhaw.ch/handle/11475/10708	-
dc.description.abstract	The limited wave propagation speed in water permits the propagation of pressure surges in hydraulic transients to be tracked in the time series. This occurs by tracking the primary (F) and the reflected (f) waves. The wave tracking method has been demonstrated to be applicable to highly complex hydraulic systems. The wave propagation induced by passing through a T-junction in the flow complies with the wave conservation laws which concern both the wave reflection and the transmission. It has been shown that all computations can be simply implemented in a computation tool like MS Excel. This considerably ensures both the accuracy and the reliability of computations. At a hydraulic system of Pelton turbines, excellent computational results have been achieved. The application to a highly complex hydraulic system with pump shut-off and the simultaneous closing of a spherical valve also showed excellent results, when compared with the field measurements. The key point in the presented computations is to unify the characteristics of the pump and the spherical valve. The entire computation covers the flow rate in the system, the reverse flow through the pump, the pressure response, the deceleration of the rotational speed and the system oscillations.	de_CH
dc.language.iso	en	de_CH
dc.publisher	Elsevier	de_CH
dc.relation.ispartof	Renewable Energy	de_CH
dc.rights	Licence according to publishing contract	de_CH
dc.subject.ddc	620: Ingenieurwesen	de_CH
dc.title	Wave tracking method of hydraulic transients in pipe systems with pump shut-off under simultaneous closing of spherical valves	de_CH
dc.type	Beitrag in wissenschaftlicher Zeitschrift	de_CH
dcterms.type	Text	de_CH
zhaw.departement	School of Engineering	de_CH
zhaw.organisationalunit	Institut für Energiesysteme und Fluid-Engineering (IEFE)	de_CH
dc.identifier.doi	10.1016/j.renene.2018.07.119	de_CH
zhaw.funding.eu	No	de_CH
zhaw.originated.zhaw	No	de_CH
zhaw.pages.end	166	de_CH
zhaw.pages.start	157	de_CH
zhaw.publication.status	publishedVersion	de_CH
zhaw.volume	132	de_CH
zhaw.publication.review	Peer review (Publikation)	de_CH
zhaw.webfeed	Erneuerbare Energien	de_CH
Appears in collections:	Publikationen School of Engineering

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Zhang, Z. (2018). Wave tracking method of hydraulic transients in pipe systems with pump shut-off under simultaneous closing of spherical valves. Renewable Energy, 132, 157–166. https://doi.org/10.1016/j.renene.2018.07.119

Zhang, Z. (2018) ‘Wave tracking method of hydraulic transients in pipe systems with pump shut-off under simultaneous closing of spherical valves’, Renewable Energy, 132, pp. 157–166. Available at: https://doi.org/10.1016/j.renene.2018.07.119.

Z. Zhang, “Wave tracking method of hydraulic transients in pipe systems with pump shut-off under simultaneous closing of spherical valves,” Renewable Energy, vol. 132, pp. 157–166, Aug. 2018, doi: 10.1016/j.renene.2018.07.119.

ZHANG, Zhengji, 2018. Wave tracking method of hydraulic transients in pipe systems with pump shut-off under simultaneous closing of spherical valves. Renewable Energy. 1 August 2018. Bd. 132, S. 157–166. DOI 10.1016/j.renene.2018.07.119

Zhang, Zhengji. 2018. “Wave Tracking Method of Hydraulic Transients in Pipe Systems with Pump Shut-off under Simultaneous Closing of Spherical Valves.” Renewable Energy 132 (August): 157–66. https://doi.org/10.1016/j.renene.2018.07.119.

Zhang, Zhengji. “Wave Tracking Method of Hydraulic Transients in Pipe Systems with Pump Shut-off under Simultaneous Closing of Spherical Valves.” Renewable Energy, vol. 132, Aug. 2018, pp. 157–66, https://doi.org/10.1016/j.renene.2018.07.119.