Publication detail
Dynamics of the nozzle valve with regard to the properties of the piping system
KLAS, R. HABÁN, V. RUDOLF, P.
English title
Dynamics of the nozzle valve with regard to the properties of the piping system
Type
conference paper
Language
en
Original abstract
It is obvious that the main function of the nozzle valve is to shut off the stream of fluid in the piping system. The response rate of the valve to the decreasing or reversing flow in the system will then depend on the valve properties and equally on the properties of the piping system. The interaction of these two elements is also important for the origin of pressure pulsations in the system. While the pressure pulsations were the cause for design of this particular valve it should be noted that the general design of the valve for any pipeline system is not possible. The valve cannot properly work under all circumstances and operating conditions. With respect to this, the dynamic properties of the valve will be assessed on the basis of the valve equation of motion and the pipeline model. An adequate response of the whole system can be obtained by combining both approaches. The valve equations of motion are also complemented by CFD simulations, which enable to capture the movement of the valve disc with respect to flow rate.
English abstract
It is obvious that the main function of the nozzle valve is to shut off the stream of fluid in the piping system. The response rate of the valve to the decreasing or reversing flow in the system will then depend on the valve properties and equally on the properties of the piping system. The interaction of these two elements is also important for the origin of pressure pulsations in the system. While the pressure pulsations were the cause for design of this particular valve it should be noted that the general design of the valve for any pipeline system is not possible. The valve cannot properly work under all circumstances and operating conditions. With respect to this, the dynamic properties of the valve will be assessed on the basis of the valve equation of motion and the pipeline model. An adequate response of the whole system can be obtained by combining both approaches. The valve equations of motion are also complemented by CFD simulations, which enable to capture the movement of the valve disc with respect to flow rate.
Keywords in English
nozzle valve; CFD simulations; one-dimensional model;unsteady flow; pipeline dynamics
Released
04.06.2018
Publisher
EPJ Web of Conferences
ISSN
2100-014X
Book
EPJ Web of Conferences
Volume
180
Pages from–to
1–8
Pages count
8
BIBTEX
@inproceedings{BUT147898,
author="Roman {Klas} and Vladimír {Habán} and František {Pochylý} and Pavel {Rudolf},
title="Dynamics of the nozzle valve with regard to the properties of the piping system",
booktitle="EPJ Web of Conferences",
year="2018",
volume="180",
month="June",
pages="1--8",
publisher="EPJ Web of Conferences",
issn="2100-014X"
}