Results 221 to 230 of about 18,543 (271)

Performance of vertical-axis pumps as turbines

Journal of Hydraulic Research, 2018
ABSTRACTHydropower generation in water distribution networks (WDNs) is an attractive topic in the field of management of water systems. Pumps as turbines (PATs) allow coupling pressure control with power generation. Although PATs have several advantages over traditional turbines, theoretical and experimental studies are still required to overcome the ...
Pugliese, Francesco, De Paola, Francesco, Fontana, Nicola, Giugni, Maurizio, Marini, Gustavo   +4 more
openaire   +2 more sources

Rotational speed variation assessment of centrifugal pump-as-turbine as an energy utilization device under water distribution network condition

, 2020
Nowadays, to extend the application of clean energy sources, the utility of small power plants has been expanded and one of them is the potential utilization of water distribution networks (WDNs).
M. Tahani, A. Kandi, M. Moghimi, Shahram Derakhshan Houreh   +3 more
semanticscholar   +1 more source

Pump as turbine applied to micro energy storage and smart water grids: A case study

Applied Energy, 2019
The need of energy storage in micro scale is recently emerging and becoming more relevant in the rising era of decentralised renewable energy production.
A. Morabito, P. Hendrick
semanticscholar   +1 more source

Study of the internal flow field in a pump-as-turbine (PaT): Numerical investigation, overall performance prediction model and velocity vector analysis

, 2020
This work presents a detailed analysis of the three-dimensional flows in a Pump-as-Turbine (PaT). The flow field is studied through URANS simulations and a velocity vector analysis.
D. Štefan, M. Rossi, M. Hudec, P. Rudolf, A. Nigro, M. Renzi   +5 more
semanticscholar   +1 more source

Effects of impeller trimming influencing pump as turbine

Computers & Fluids, 2012
Abstract Pump manufactures normally do not provide performance curves of their pumps working as turbines, especially performance curves of trimmed impellers. Impeller trimming is necessary to adapt to a certain operating condition. Therefore, establishing the correlation of PAT’s performance curve and impeller trims is essential.
Sun-Sheng Yang, Fan-Yu Kong, Wan-Ming Jiang, Xiao-Yun Qu   +3 more
openaire   +1 more source

Blade trailing edge position influencing pump as turbine (PAT) pressure field under part-load conditions

Renewable Energy, 2019
Small hydropower is the most preferred clean energy technology, especially in remote areas away from national electrical grid reach. Within these plants, Pump as Turbines (PATs) suffer from a very small range of optimum operating conditions, leading to a
Dr. Maxime Binama, W. Su, W. Cai, Xiaobin Li, Alexis Muhirwa, Biao Li, E. Bisengimana   +6 more
semanticscholar   +1 more source

Centrifugal Pumps Used as Hydraulic Turbines

Journal of Engineering for Power, 1961
Centrifugal pumps may be used to advantage as small hydraulic turbines where low initial cost is imperative. Pump and turbine characteristics are presented for typical units and a procedure for pump selection is discussed.
openaire   +1 more source

Hysteresis Characteristics of Francis Pump-Turbines When Operated as Turbine

Journal of Basic Engineering, 1971
The results obtained through experiments on models concerning the phenomena of hysteresis characteristics of Francis pump-turbines generated when operated as turbine are described in the present report. It has made clear the fact that the condition for generating the phenomena is regulated by cavitation factor and guidevane openings and affected by the
openaire   +1 more source

Installation of an axial Pump-as-Turbine (PaT) in a wastewater sewer of an oil refinery: A case study

Applied Energy, 2019
This paper analyses an energy recovery solution based on the Pump-as-Turbine (PaT) technology applied in an oil refinery. Since under-ground water might be contaminated by the chemical processes, an intervention named “Pump & Treat” was adopted in the ...
M. Renzi, P. Rudolf, D. Štefan, A. Nigro, M. Rossi   +4 more
semanticscholar   +1 more source

Experimental study of viscosity effects on a pump as turbine performance

Renewable Energy, 2018
An experimental study is carried out to find the effects of viscosity on the performance of a pump as turbine (PAT) system. A pump is tested in an established test rig for five kinds of fluids with different viscosities by the solution of Water-Glycerin ...
Sina Abazariyan, R. Rafee, S. Derakhshan
semanticscholar   +1 more source