Preliminary investigation of centrifugal pump for fire engine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F18%3A00006026" target="_blank" >RIV/46747885:24210/18:00006026 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.matec-conferences.org/articles/matecconf/abs/2018/69/matecconf_cscc2018_04015/matecconf_cscc2018_04015.html" target="_blank" >https://www.matec-conferences.org/articles/matecconf/abs/2018/69/matecconf_cscc2018_04015/matecconf_cscc2018_04015.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/201821004015" target="_blank" >10.1051/matecconf/201821004015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preliminary investigation of centrifugal pump for fire engine

Popis výsledku v původním jazyce

This preliminary work deals with analytical, numerical and experimental investigation of centrifugal pump for fire engine. The pump was investigated experimentally and power curves as dependence of head on flow rate were carried out. Numerical research focused on finding of setup of numerical solver. All curves were compared, analysed and problematic places were identified. It was found that for very low backpressure, i.e. head coefficient, cavitation occurs around the propeller wheel and reduces maximum flow coefficient significantly. After modifying the wheel by sharpening leading edges of blades, or when rotation speed was increased, cavitation got even worse. Another issue is related with stator blades. It seems that stator blades work perfectly only in short range of regimes. Stator blades represent another resistance for low back pressure, while for higher back pressure, stator blades fail to decelerate the flow and increase static pressure. Several modification were suggested to increase performance of the fire engine.

Název v anglickém jazyce

Preliminary investigation of centrifugal pump for fire engine

Popis výsledku anglicky

This preliminary work deals with analytical, numerical and experimental investigation of centrifugal pump for fire engine. The pump was investigated experimentally and power curves as dependence of head on flow rate were carried out. Numerical research focused on finding of setup of numerical solver. All curves were compared, analysed and problematic places were identified. It was found that for very low backpressure, i.e. head coefficient, cavitation occurs around the propeller wheel and reduces maximum flow coefficient significantly. After modifying the wheel by sharpening leading edges of blades, or when rotation speed was increased, cavitation got even worse. Another issue is related with stator blades. It seems that stator blades work perfectly only in short range of regimes. Stator blades represent another resistance for low back pressure, while for higher back pressure, stator blades fail to decelerate the flow and increase static pressure. Several modification were suggested to increase performance of the fire engine.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/TH03010378" target="_blank" >TH03010378: Vývoj nové řady protipožárních čerpadel do extrémních podmínek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

MATEC Web of Conferences

ISBN

—

ISSN

2261-236X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

—

Místo vydání

—

Místo konání akce

Majorca, Spain

Datum konání akce

1. 1. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—