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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Assessment of Specific Speed Influence on Pump-as-Turbine Operation
Original language description
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
Czech name
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Czech description
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Project
<a href="/en/project/TK70020001" target="_blank" >TK70020001: Digitalization of water supply infrastructure to optimize the Water-Energy Nexus</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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