Analysis of pressure losses in the diffuser of a control valve

Analysis of pressure losses in the diffuser of a control valve

The pressure loss in the diffuser of a control valve is evaluated by using CFD computations. Pressure ratios and lifts of a cone for the recommended flow characteristics of an experimental turbine are considered. The pressure loss in a valve is compared with the pressure loss in a nozzle, i.e. the e...

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Main Authors: Turecký Petr, Mrózek Lukáš, Tajč Ladislav, Kolovratník Michal
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201714302135
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spelling doaj-adc0fdcb14584e1ca4f261c9dcc3b4722021-08-02T09:34:47ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011430213510.1051/epjconf/201714302135epjconf_efm2017_02135Analysis of pressure losses in the diffuser of a control valveTurecký Petr0Mrózek Lukáš1Tajč Ladislav2Kolovratník Michal3ENVIROS, s.r.o.Univerzity of West Bohemia, Department of Power System EngineeringUniverzity of West Bohemia, Department of Power System EngineeringCzech Technical University in Prague, Department of Energy EngineeringThe pressure loss in the diffuser of a control valve is evaluated by using CFD computations. Pressure ratios and lifts of a cone for the recommended flow characteristics of an experimental turbine are considered. The pressure loss in a valve is compared with the pressure loss in a nozzle, i.e. the embodiment of the valve without a cone. Computations are carried out for the same mass flow. Velocity profiles are evaluated in both versions of computations. Comparison of computed pressure losses, with the loss evaluated by using relations for diffusers with the ideal velocity conditions in the input cross-section, is carried out.https://doi.org/10.1051/epjconf/201714302135
collection DOAJ
language English
format Article
sources DOAJ
author Turecký Petr
Mrózek Lukáš
Tajč Ladislav
Kolovratník Michal
spellingShingle Turecký Petr
Mrózek Lukáš
Tajč Ladislav
Kolovratník Michal
Analysis of pressure losses in the diffuser of a control valve
EPJ Web of Conferences
author_facet Turecký Petr
Mrózek Lukáš
Tajč Ladislav
Kolovratník Michal
author_sort Turecký Petr
title Analysis of pressure losses in the diffuser of a control valve
title_short Analysis of pressure losses in the diffuser of a control valve
title_full Analysis of pressure losses in the diffuser of a control valve
title_fullStr Analysis of pressure losses in the diffuser of a control valve
title_full_unstemmed Analysis of pressure losses in the diffuser of a control valve
title_sort analysis of pressure losses in the diffuser of a control valve
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2017-01-01
description The pressure loss in the diffuser of a control valve is evaluated by using CFD computations. Pressure ratios and lifts of a cone for the recommended flow characteristics of an experimental turbine are considered. The pressure loss in a valve is compared with the pressure loss in a nozzle, i.e. the embodiment of the valve without a cone. Computations are carried out for the same mass flow. Velocity profiles are evaluated in both versions of computations. Comparison of computed pressure losses, with the loss evaluated by using relations for diffusers with the ideal velocity conditions in the input cross-section, is carried out.
url https://doi.org/10.1051/epjconf/201714302135
work_keys_str_mv AT tureckypetr analysisofpressurelossesinthediffuserofacontrolvalve
AT mrozeklukas analysisofpressurelossesinthediffuserofacontrolvalve
AT tajcladislav analysisofpressurelossesinthediffuserofacontrolvalve
AT kolovratnikmichal analysisofpressurelossesinthediffuserofacontrolvalve
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