Results 121 to 130 of about 38,835 (280)

Sediment erosion in Francis turbines

open access: yes, 2009
Sediment erosion is a major challenge for run-of-river power plants, especially during flood periods. Due to the high content of hard minerals such as quartz and feldspar carried in the river, substantial damage is observed on the turbine components. Material is gradually removed, thus the efficiency of the turbine decreases and the operating time of ...
openaire   +2 more sources

Industry tests of NASA ceramic thermal barrier coating [PDF]

open access: yes
Ceramic thermal barrier coating (TBC) system was tested by industrial and governmental organizations for a variety of aeronautical, marine, and ground-based gas turbine engine applications.
Liebert, C. H., Stepka, F. S.
core   +1 more source

Advanced materials research for long-haul aircraft turbine engines [PDF]

open access: yes, 1978
The status of research efforts to apply low to intermediate temperature composite materials and advanced high temperature materials to engine components is reviewed.
Blankenship, C. P., Signorelli, R. A.
core   +1 more source

Optimization Of Gamm Francis Turbine Runner

open access: yes, 2011
Nowadays, the challenge in hydraulic turbine design is the multi-objective design of turbine runner to reach higher efficiency. The hydraulic performance of a turbine is strictly depends on runner blades shape. The present paper focuses on the application of the multi-objective optimization algorithm to the design of a small Francis turbine runner. The
Sh. Derakhshan, A. Mostafavi
openaire   +1 more source

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

open access: yes
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

On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines [PDF]

open access: gold, 2019
Einar Agnalt   +3 more
openalex   +1 more source

Experimental Investigation of a Free Runner Concept Downstream of Francis Turbines

open access: diamond, 2022
A I Bosioc   +3 more
openalex   +1 more source

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