Centrifugal Pump User’s Guidebook

Yedidiah, Sam

doi:10.1007/978-1-4613-1217-8

Cited by 30 publications

(25 citation statements)

References 10 publications

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“…Overall, these studies univocally conclude that increasing the impeller diameter yields greater head and pressure coefficients. This is in accordance with insights from common centrifugal pumps where similar effects are known (e.g., [35,36]). Figure 10a plots the head for the BEP against the impeller diameter.…”

Section: Impeller Diametersupporting

confidence: 73%

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Design Parameters of Vortex Pumps: A Meta-Analysis of Experimental Studies

et al. 2017

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Vortex pumps can impel solid-containing fluids and are therefore widely applied, from wastewater transport to the food industry. Despite constant efforts to improve vortex pumps, however, they have remained relatively inefficient compared to conventional centrifugal pumps. To find an optimized design of vortex pumps, this paper provides a systematic analysis on experimental studies that investigated how variations in geometric parameters influence vortex pump characteristics, in particular the pump head, the pressure coefficient and the efficiency for best point operation. To this end, an extensive literature search was conducted, and eighteen articles with 53 primary investigations were identified and meta-integrated. This showed that it is not yet clarified how vortex pumps operate. Two different assumptions of the underlying operating principle of a vortex pump lead to diverging design principles. From the results of this meta-analysis, we deduce recommendations for a more efficient design of a vortex pump and emphasize further aspects on the underlying operating principle of a vortex pump.

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Section: Impeller Diametersupporting

confidence: 73%

“…In contrast, Figure 21b suggests that rotation speed has little effect on efficiency. The effect on head resembles insights on common centrifugal pumps for which similar effects have been observed (e.g., [35,36]). …”

Section: Rotation Speedmentioning

confidence: 56%

Design Parameters of Vortex Pumps: A Meta-Analysis of Experimental Studies

et al. 2017

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“…6 tells us that this colossal difference in the distribution of the inlet velocities was caused by recirculation. This effect, as has been explained in Yedidiah (1996 and2005a), develops below a certain flow rate (compare Fig. 8).…”

Section: Cn/u2 [ -]supporting

confidence: 69%

“…While CFD may be the only logical tool capable of optimizing certain design requirements of a centrifugal pump, it does not yet mean that its use will produce a pump which will perform better than any other existing ones. There exists a huge number and variety of factors which are capable of affecting the performance of a pump (Yedidiah, 1996(Yedidiah, & 2006. Below, we shall discuss one of such factors.…”

Section: Improving the Efficiency Of A Certain Class Of Centrifugal Pmentioning

confidence: 99%

A Study in The Use of CFD In The Design of Centrifugal Pumps

Yedidiah¹

2008

Engineering Applications of Computational Fluid Mechanics

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CFD has the potential of assisting an engineer in arriving at improved designs. However, to be effective, this requires a much closer cooperation and mutual understanding between the pump specialist and the expert in CFD, than it is presently in existence. This conclusion is based on actual case histories from past experience, as well as considerations of the physical meaning of certain mathematical expressions. The presented discussion relates, primarily, to the design of centrifugal pumps. However, there are strong indications that analogical situations exist also in other fields of fluids engineering.

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“…A centrifugal pump is one kind of general machinery [1] which is widely and fully utilized in the industrial and agricultural fields [2], such as irrigation and water supply. It normally includes four different parts: suction pipe, impeller, volute, and exit pipe.…”

Section: Introductionmentioning

confidence: 99%