(PDF) Optimal Sizing of an Air Vessel in a Long-Distance Water-Supply …
2016年4月8日 · By optimizing the sizing of air vessels, not only is the damage from water hammer prevented, but also the cost of water hammer protection systems is minimized. This paper presents a numerical...
Surge Analysis of Air Vessel with Different Connection Types in ...
2023年10月18日 · In this study, surge analysis of air vessels with three different connection types was conducted using the perturbation method. The coefficients of impedance and friction were introduced to the influence of the type of connection on …
Formula for selecting optimal location of air vessel in long-distance ...
2019年5月1日 · In this study, the location of air vessels in long-distance water supply systems was investigated. The relation between location and pressure amplitude of the air vessel was established, and a new formula for air vessel location—that is, a middle-reach location—was presented and verified using a numerical simulation based on a practical ...
(PDF) Simple Guide for Design of Air Vessels for Water Hammer ...
2002年8月1日 · Air vessels offer an effective means of reducing water hammer overpressures and negative pressures due to pump trip in pipelines. The process of sizing air vessels is simplified with the...
Thermodynamic behaviour and heat transfer characteristics of air ...
2024年1月5日 · The dynamic flow characteristics and heat transfer mechanism of an air vessel in the pressured water delivery system were studied to investigate the thermodynamic behaviour of the air vessel using the VOF method and k-ε turbulence model. The results were used in a thermodynamic model to calculate the polytropic indices.
Optimal volume selection of air vessels in long-distance water supply …
2021年8月18日 · The use of air vessels is a common measure to prevent water hammers in long-distance water supply systems. The selection of the air vessel has a certain blindness, which is often accompanied by much trial work.
Surge Analysis of Air Vessel with Different Connection Types in ...
2024年1月1日 · Pressure vessels can greatly protect a water supply pipeline system from water hammer damages. In order to improve the performance of a pressure vessel, a strainer is proposed to compensate the … Expand
Schematic of air vessel | Download Scientific Diagram
Air vessels offer an effective means of reducing water hammer overpressures and negative pressures due to pump trip in pipelines. The process of sizing air vessels is simplified with the...
Air vessel sizing approach for pipeline protection using artificial ...
2023年4月29日 · Sensitivity analysis is performed to show the effect of pump and pipeline parameters on the maximum and minimum head just downstream the pump after pump power failure. A new approach to find the required gas volume in a hydropneumatic tank (air vessel) to protect the pipeline using artificial neural networks (ANNs) is introduced.
In this paper, the influences of the air vessel aspect ratio (R = height/diameter) and its form, whether cylindrical (vertical or horizontal) or spherical, on the transient pressures resulting from abnormal working events of pumps are examined.