Centrifugal pump in turbine mode for small hydropower

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Centrifugal pump in turbine mode for small hydropower

Popis výsledku v původním jazyce

In order to minimize investment costs when setting up small hydropower plants, pumps in reverse turbine mode are used in some cases. However, small pump units in turbine mode show decrease of overall efficiency compared to pump efficiency. The article describes innovative design changes, which reduce this negative effect. The proposed changes were verified in a hydraulic testing circuit with the following results: modifications of the existing pump design showed an increase in the efficiency by several percent, significantly increased power output and shaft torque. The best results were achieved with a new turbine runner geometry: efficiency increased by 12,5%, torque by 48% and power output by nearly 29%.

Název v anglickém jazyce

Centrifugal pump in turbine mode for small hydropower

Popis výsledku anglicky

In order to minimize investment costs when setting up small hydropower plants, pumps in reverse turbine mode are used in some cases. However, small pump units in turbine mode show decrease of overall efficiency compared to pump efficiency. The article describes innovative design changes, which reduce this negative effect. The proposed changes were verified in a hydraulic testing circuit with the following results: modifications of the existing pump design showed an increase in the efficiency by several percent, significantly increased power output and shaft torque. The best results were achieved with a new turbine runner geometry: efficiency increased by 12,5%, torque by 48% and power output by nearly 29%.

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

PROCEEDING OF 6TH INTERNATIONAL CONFERENCE ON TRENDS IN AGRICULTURAL ENGINEERING 2016

ISBN

978-80-213-2683-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

500-505

Název nakladatele

CZECH UNIVERSITY OF LIFE SCIENCES PRAGUE

Místo vydání

Prague

Místo konání akce

Prague

Datum konání akce

7. 9. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000390603400079