Results 141 to 150 of about 3,909,091 (274)

Unsteady computational fluid dynamics analysis of the hydrodynamic instabilities in a reversible Francis turbine used in a storage plant. [PDF]

Heliyon, 2019
Mauro S, Lanzafame R, Brusca S, Messina M.   +3 more
europepmc   +1 more source

Analysis of Internal Mechanical Friction Losses Influence on the Francis-99 Runner Using the Friction Torque Approach

Computation
Francis turbines are renowned for their high efficiency and adaptability across a wide range of head and discharge conditions. However, internal mechanical friction losses (IMFLs), resulting from rotational frictional resistance between the rotating ...
Otibh M. M. Abubkry, Yun Zeng, Juan Duan, Altyib Abdallah Mahmoud Ahmed, Hassan Babeker, Altyeb Ali Abaker Omer   +5 more
doaj   +1 more source

Thermal stress analysis of ceramic gas-path seal components for aircraft turbines [PDF]

Stress and temperature distributions were evaluated numerically for a blade-tip seal system proposed for gas turbine applications. The seal consists of an abradable ceramic layer on metallic backing with intermediate layers between the ceramic layer and ...
Bill, R. C., Kennedy, F. E.
core   +1 more source

Converting energy from fusion into useful forms

, 2013
If fusion power reactors are to be feasible, it will still be necessary to convert the energy of the nuclear reaction into usable form. The heat produced will be removed from the reactor core by a primary coolant, which might be water, helium, molten ...
Harrington, C., Jenkins, I., Kiely, C., Kovari, M.   +3 more
core   +1 more source

FSI-analysis of a Francis turbine

, 2012
Sediment erosion in Francis turbines is a big problem in hydropower plants in and around the Himalayas. The sediment composition in the rivers contains high levels of the hard mineral quarts. When the sediments enter the turbine they cause erosive damage to exposed parts such as covers, guide vanes and runner.
openaire   +1 more source

Development of a renewable hybrid power plant with extended utilization of pumped storage unit equipment [PDF]

, 2019
The scheme of a renewable hybrid power plant with the extended use of the installed equipment of the pumped storage unit for the conversion of the photovoltaic and wind generators direct current to the alternating one is proposed.
Chervonenko, I., El Masri, S. A. H., Makhotilo, K.   +2 more
core  

The NASA high pressure facility and turbine test rig [PDF]

A description of the facility and turbine test rig is presented.
Stepka, F. S.
core   +1 more source

Assessment of the electro-mechanical equipment's weight of the European hydropower fleet. [PDF]

Sci Rep, 2023
Quaranta E.
europepmc   +1 more source

Experimental investigation of an adjustable guide vane system in a Francis turbine draft tube at part load operation

Renewable Energy, 2023
J. Joy, M. Raisee, M. Cervantes
semanticscholar   +1 more source

Modelling rain drop impact on offshore wind turbine blades [PDF]

, 2012
The effects of rain and hail erosion and impact damage on the leading edge of offshore wind turbine blades have been investigated. A literature review was conducted to establish the effects of exposure to these conditions and also to investigate the ...
Keegan, Mark Hugh, Nash, David, Stack, Margaret   +2 more
core