Measurements in the Dynamic Pressure Field of the Volute of a Centrifugal Pump

Parrondo, Jorge; Fernández, Jesús Alberto López; Santolaria, Carlos; González, José

doi:10.1007/978-94-010-9385-9_40

Cited by 5 publications

(5 citation statements)

References 5 publications

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“…Figure 5 clearly shows that the rate of flow through the pump affects its vibrational pattern. As reported by Parrondo et al (1996), who conducted a thorough series of fluctuating pressure measurements on a similar centrifugal pump, these kind of trends with pressure signals are heavily dependent on the measurement location along the pump casing, especially for spikes at frequencies higher than the rotational frequency. The same is true with respect to acceleration signals.…”

Section: Resultsmentioning

confidence: 86%

“…This results in a reduction of the head of the pump, the lesser the NPSH the greater the head reduction. The point for which the head begins to reduce allows to establish the minimum NPSH required by the pump to avoid cavitation (= NPSHr), which is shown in Figure 2 Further details of the experimental facility and instrumentation used in this investigation may be obtained in Velarde et al (1994) and Parrondo et al (1996).…”

Section: Experimental Equipmentmentioning

confidence: 99%

“…Excitation at the passing-blade frequency (frequency of rotation multiplied by the number of blades of the impeller) is a consequence of the finite thickness of the blades, which causes flow disturbances in the volute associated with the passage of each blade. The effects of those excitation mechanisms may be substantially modified by impeller-stator interaction phenomena, which are dependent on the point of operation of the pump (Parrondo et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development of a predictive maintenance system for a centrifugal pump

Parrondo

Velarde

Santolaria

1998

Journal of Quality in Maintenance Engineering

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Section: Resultsmentioning

confidence: 86%

Section: Experimental Equipmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of a predictive maintenance system for a centrifugal pump

Parrondo

Velarde

Santolaria

1998

Journal of Quality in Maintenance Engineering

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“…The effects of those excitation mechanisms may be substantially modified by impeller-stator interaction phenomena, which are dependent on the point of operation of the pump (Parrondo, Fernandez, Santolaria, & Gonzalez, 1996).…”

Section: Materials and Methods 21 Seawater Pumpmentioning

confidence: 99%

Analysis of Determining Critical Components Using Fmeca Method in Seawater Pump of Diesel Generator Caterpillar 3412

Hasan¹,

Sahiri²,

Suprayitno³

et al. 2019

asro

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The seawater pump on the Caterpillar 3412 Diesel Generator is one of the important component to make the Diesel generator can work well. This section serves to circulate seawater for the heat transfer process. The seawater pump is part of a cooling system of the engine which keeps the engine temperature from being too overheat. Seawater pumps with continuous operational conditions, resulting in reduced component reliability. This study applies the FMECA method to identify opportunities for failure at the seawater pump. From the calculation of FMECA, it is obtained an assessment of the level of risk from a failure model that can give priority scale to preventive maintenance that can be done in the future. FMECA analysis of 27 components in seawater pump on the Diesel Generator, found 7 components that had RPN values above the average. The following are the 4 components with the highest RPN value, namely Shaft (7C-3493) RPN value 420,44; Key (175-6716) RPN value 300,31; Bearing Inner (4M-6107) RPN value 285 and Bearing Roller (3N-8463) RPN value 253,13. Components that have high RPN values require more attention, such as routine checks and periodic maintenance.Keyword: Seawater pump, Caterpillar 3412 Diesel Generator, FMECA, RPN.

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“…J.L. Parrondo, J. Fernandez, C. Santolaria& J. Gonzalez [30] studied the interaction between the rotor-stator in an industrial centrifugal pump. They measured the pressure at some locations of the volute casing.…”

Section: Introductionmentioning

confidence: 99%

A 2d Numerical and Experimental Investigation on the Pressure Fluctuations Inside a Double Volute Centrifugal Pump at Three Different Radial Gaps

Mansour

Abotaleb

2017

Journal of Al-Azhar University Engineering Sector

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Pressure fluctuations in centrifugal pumps are one of the most traumatic issues that exist as a result of the interaction between the rotor "impeller" and stator "volute". The experiments that were carried out on the double volute pump model in Saudi Arabia have proved that the radial gap "clearance" between the impeller and the tongue of the volute plays a major role in increasing and decreasing that vibrations that are generated due to the pressure fluctuations. Unsteady 2D simulations were carried out on the model to study the pressure fluctuations especially at the critical locations such as around the impeller , the cutwater, and the volute tongue. The results show that the sliding mesh technique is a very useful procedure for simulating these kinds of simulations. The results also show that the peak of the pressure fluctuations occurs at the first blade passing frequency for the 3 gaps "2, 3.6, 7"mm. Numerical static pressure was captured accurately for each gap but the amplitude of the pressure fluctuations were overestimated due to the inaccurate nature of the 2D simulations. The highest gap "7 mm" is the best solution for the vibrations and noise reduction due to the decrease in the pressure fluctuations without affecting the performance of the pump greatly. The performance curves are discussed.

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Measurements in the Dynamic Pressure Field of the Volute of a Centrifugal Pump

Cited by 5 publications

References 5 publications

Development of a predictive maintenance system for a centrifugal pump

Development of a predictive maintenance system for a centrifugal pump

Analysis of Determining Critical Components Using Fmeca Method in Seawater Pump of Diesel Generator Caterpillar 3412

A 2d Numerical and Experimental Investigation on the Pressure Fluctuations Inside a Double Volute Centrifugal Pump at Three Different Radial Gaps

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