Results 11 to 20 of about 70,148 (323)

Blade profile optimization of pump as turbine [PDF]

open access: yesAdvances in Mechanical Engineering, 2015
One major focus on the performance researches of pump as turbine is how to enhance the efficiency of energy recovery. While the key point of increasing the efficiency is to improve the performance of the blade profile which is structural basis of the ...
Sen-chun Miao   +3 more
doaj   +2 more sources

Pumps as Turbines (PATs) by Analysis with CFD Models

open access: hybridInternational Journal on Advanced Science, Engineering and Information Technology, 2022
[EN] Pumps as turbines (PATs) are the typical solution for electrification using micro hydropower plants (MHP) in the rural sector. Other engineering applications where lately the use of PATs have increased are irrigation, water supply, and energy recovery systems due to their availability, short delivery time, long service life, economic feasibility ...
Plua, Frank   +4 more
openaire   +4 more sources

Assessment Performance of Pumps as Hydro-Turbines

open access: yesJurnal Energi Dan Manufaktur, 2012
The basic principle work of hydro-turbines are reversal of pumps, therefore, an alternative solution that can be developed inovercoming problem to get hydro turbines are by using pumps, by flowing water in the reverse direction through in thepumps, as ...
Made Suarda
doaj   +1 more source

Analytical Prediction Models for Evaluating Pumps-As-Turbines (PaTs) Performance [PDF]

open access: goldEnergy Procedia, 2017
Abstract: The hydropower sector is moving to the small-scale generation due to the exploitation of the majority water reservoirs with the aim of providing electrical energy in rural zones. Pump-as-Turbines (PaTs) is one of the most interesting technology due to their use for recovering energy in different industrial applications.
Mosè Rossi, Massimiliano Renzi
openaire   +3 more sources

Instabilities and influence of geometric parameters on the efficiency of a pump operated as a turbine for micro hydro power generation: A review

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems, 2021
Compared to a traditional turbine (Kaplan, Francis, Pelton), pumps operated as turbine are a good alternative for micro hydroelectric power plants thanks to their low cost and easy availability.
Jonathan Graciano-Uribe   +2 more
doaj   +1 more source

Numerical and experimental study of mixed flow pump as turbine for remote rural micro hydro power plant application

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2022
The use of a pump as opposed to a turbine/pump as turbine (PAT) for off-grid electrification applications is one of the important ways to be considered in efforts to equalize electrical energy in Indonesia.
Sarid Mejiartono   +2 more
doaj   +1 more source

Exploring the Mechanism of Strong-Pressure Fluctuation under Partial Load in the Turbine Mode of Pump Turbines for Hydro and Marine Power Storage

open access: yesJournal of Marine Science and Engineering, 2023
As a core component of pumped storage power plants for hydro and marine power storage, this paper investigates the mechanism of pressure pulsation fluctuations under different load conditions to improve the efficiency and operational stability of the ...
Jiahao Lu   +4 more
doaj   +1 more source

Geometrical effects on performance and inner flow characteristics of a pump-as-turbine: A review

open access: yesAdvances in Mechanical Engineering, 2020
A pump-as-turbine is a hydraulic machine that can operate as a pump and turbine at the same time. Pump-as-turbine happens to be the most appropriate method for meeting the world’s energy demands, particularly in rural and isolated areas of a country ...
Stephen Ntiri Asomani   +4 more
doaj   +1 more source

Research on the Flow-Induced Stress Characteristics of Head-Cover Bolts of a Pump-Turbine during Turbine Start-Up

open access: yesEnergies, 2022
Nowadays, pump-turbine units have to experience multiple start-stops every day to balance the power production and consumption on the grid. During the transient process of turbine start-up, the hydraulic forces applied to the head-cover would change ...
Zhengwei Wang   +5 more
doaj   +1 more source

A Performance Prediction Model for Pumps as Turbines (PATs) [PDF]

open access: yesWater, 2020
In recent years, the interest towards the use of pumps operating as turbines (PATs) for the generation of electrical energy has increased, due to the low cost of implementation and maintenance. The main issue that inhibits a wider use of PATs is the lack of corresponding characteristic curves, because manufacturers usually provide only the pump-mode ...
Stefania Fontanella   +4 more
openaire   +3 more sources

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