Assessment of Specific Speed Influence on Pump-as-Turbine Operation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU147585" target="_blank" >RIV/00216305:26210/22:PU147585 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of Specific Speed Influence on Pump-as-Turbine Operation

Popis výsledku v původním jazyce

Pumps operating in reverse mode, often named Pumpas-Turbines (PaTs), are gaining interest in small-scale hydropower applications. Due to low investment costs and simple design, this technology is considered a good alternative to typical turbines. PaTs are mainly used in energy recovery applications, especially in drinking water pipeline systems where they replace Pressure Reducing Valves (PRVs). This work presents the assessment of three different centrifugal pumps used in reverse mode. The goal is to compare the PaTs’ performance by investigating machines having different specific speeds, namely a pump with very low specific speed nq = 9, a pump with a common value of specific speed nq = 35, and a pump with relatively high specific speed nq = 90. Measurements, as well as results from CFD simulations, are presented to verify the usability of each of the pump, and quantify the effect of specific speed on PaTs’ performance in reverse mode operation. In particular, not only integral values and characteri

Název v anglickém jazyce

Assessment of Specific Speed Influence on Pump-as-Turbine Operation

Popis výsledku anglicky

Pumps operating in reverse mode, often named Pumpas-Turbines (PaTs), are gaining interest in small-scale hydropower applications. Due to low investment costs and simple design, this technology is considered a good alternative to typical turbines. PaTs are mainly used in energy recovery applications, especially in drinking water pipeline systems where they replace Pressure Reducing Valves (PRVs). This work presents the assessment of three different centrifugal pumps used in reverse mode. The goal is to compare the PaTs’ performance by investigating machines having different specific speeds, namely a pump with very low specific speed nq = 9, a pump with a common value of specific speed nq = 35, and a pump with relatively high specific speed nq = 90. Measurements, as well as results from CFD simulations, are presented to verify the usability of each of the pump, and quantify the effect of specific speed on PaTs’ performance in reverse mode operation. In particular, not only integral values and characteri

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/TK70020001" target="_blank" >TK70020001: Digitalizace infrastruktury dodávky pitné vody pro optimalizaci vztahu voda-energie</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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