Cavitation effect on flow resistance of sleeve regulating valve

Zhao, Lei; Wu, Jiayi; Jin, Zhi-jiang; Qian, Jin-yuan

doi:10.1016/j.flowmeasinst.2022.102259

Cited by 13 publications

(3 citation statements)

References 20 publications

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“…Figure 1 proposes a scheme to measure the loss coefficient of the check valve considering the approach of similar studies to evaluate this characteristic in valves of another type or hydraulic accessories for the control and transport of fluids [17,23,29]. Considering that the flow circulates between points 1 and 2, the hydraulic energy loss that the fluid current would have in that area is h…”

Section: Methodsmentioning

confidence: 99%

“…Various studies have been carried out to analyze the energy loss and pressure drop of valves used in pipe hydraulics by computational, experimental, or theoretical-experimental means to establish improvements in their operation. Zhao et al [17] modeled, using computational fluid dynamics tools and experimental studies, the effect of cavitation over a flow-regulating valve. Their studies defined correlations such as pressure drop, opening percentage, cavitation influence percentage, and discharge coefficient.…”

Section: Introductionmentioning

confidence: 99%

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Hydraulic Characterization of a Check Valve for Low-Pressure Potable Water Distribution Applications

Carpintero

Martínez

Fábregas

et al. 2023

Water

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The potable water in residential hydraulic networks is measured using volumetric meters. However, when the water carries air bubbles or pockets through the pipes, the accuracy of the meter readings is reduced, which can negatively impact the billing that users pay for their water consumption. A check valve accessory exists that reduces the size of these air bubbles to correct the meter readings and improve the service experience. However, the device has only been tested for networks with relative pressures higher than 275.79 kPa. This research proposes to characterize the hydraulic behavior of the accessory through an experimental procedure in which the operating conditions are similar to those found in water networks in Latin America, where the networks have relative pressures lower than 275.79 kPa. The study found that the accessory significantly reduces the coefficient of loss for velocities greater than 1 m/s. The use of the device is suggested in flow regimes with Reynolds numbers close to 20,000 for operating conditions of temperatures close to 25 °C and residential pipes with an internal diameter of 20.9 mm and a flow velocity between 1.3 m/s and 1.78 m/s. This condition allows it to operate with minimal local energy loss and a low coefficient of loss, providing an improved service experience.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydraulic Characterization of a Check Valve for Low-Pressure Potable Water Distribution Applications

Carpintero

Martínez

Fábregas

et al. 2023

Water

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“…Phenomena related to the flow of the working medium in the hydraulic system cause vibrations and noise (He et al, 2023;Song et al, 2022;Han et al, 2017). Occasional cavitation causes high-frequency noise to occur (Jia et al, 2022;Park et al, 2020;Zhao et al, 2022;Liu et al, 2022). Thus, time-varying forces excite hydraulic system components to vibrate, and noise is generated as a result of the surface vibrations of these components (Pan et al, 2022;Zhang et al, 2018;Pan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The Impact of Mechanical Vibrations on Hydraulic Valves and the Possibility of Reducing the Effects

Stosiak,

Skačkauskas,

Deptuła

2024

Aviation

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The paper shows that mechanical vibrations occur in a wide frequency range in the hydraulic systems operating in the real world. Hydraulic valves are also exposed to these vibrations. The paper gives examples of vibration sources and suggests that the influence of vibrations on hydraulic valves could be reduced. Particular attention was paid to the vibrating proportional distributor. The amplitude-frequency spectrum of pressure pulsation in a hydraulic system with a vibrating proportional distributor was analysed. During the tests, the frequency of external mechanical vibrations acting on the proportional distributor and their direction was changed.

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Transient characteristics simulation and flow-field analysis of high-pressure pneumatic pilot-driven on/off valve via CFD method

Zhang,

Tao,

Yang

et al. 2024

Flow Measurement and Instrumentation

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Cavitation effect on flow resistance of sleeve regulating valve

Cited by 13 publications

References 20 publications

Hydraulic Characterization of a Check Valve for Low-Pressure Potable Water Distribution Applications

Hydraulic Characterization of a Check Valve for Low-Pressure Potable Water Distribution Applications

The Impact of Mechanical Vibrations on Hydraulic Valves and the Possibility of Reducing the Effects

Transient characteristics simulation and flow-field analysis of high-pressure pneumatic pilot-driven on/off valve via CFD method

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