Multi structural parameter analysis based on the labyrinth valve design with high pressure drop and low noise

Gan, Runlin; Li, Baoren; Liu, Song; Wu, Zhe; Peng, Yuxuan; Yang, Gang

doi:10.1016/j.flowmeasinst.2022.102301

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…Their studies defined correlations such as pressure drop, opening percentage, cavitation influence percentage, and discharge coefficient. Gan et al [18] evaluated the pressure drop of a labyrinth valve by computational means to reduce its noise generation depending on the quality of the mesh, the type of mesh, and the flow rate, consequently, Go et al validated the results of Gan et al with an experimental approach [19]. Santos et al [20] studied, using computational tools, the effect of a valve on the airflow in the intake system of a diesel engine.…”

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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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: Introductionmentioning

confidence: 99%