Results 121 to 130 of about 1,553 (163)
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1979
There are several distinctive types of axial turbine including both impulse and reaction, single and velocity compounded.
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There are several distinctive types of axial turbine including both impulse and reaction, single and velocity compounded.
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The Axial Vibration of Turbine Disks
Journal of Applied Mechanics, 1945Abstract The theoretical basis for calculation of disk vibrations developed by Stodola leaves a wide gap to be supplied between theory and useful procedure. This paper outlines a method by which the designer may obtain useful results without resorting to complicated procedures and with a minimum of empirical modifications. Taking Stodola’
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Numerical analysis of a unidirectional axial turbine for twin turbine configuration
Applied Ocean Research, 2014Abstract One of the most developed technologies in ocean energy is the OWC concept. It is well-known that the efficiency of the device is closely related to the efficiency of the Power-Take-Off (PTO) which is usually a turbine. Traditionally, self-rectifying turbines are the most widely considered for working in an OWC because unidirectional turbines
Bruno Pereiras +2 more
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1981
The turbine is used to extract energy from a flowing stream of gas and has the general characteristics introduced in section 1.3. In the axial flow turbine, the gas flows through an annular passage surrounding the rotating power output shaft, in a direction substantially parallel to the axis of the shaft.
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The turbine is used to extract energy from a flowing stream of gas and has the general characteristics introduced in section 1.3. In the axial flow turbine, the gas flows through an annular passage surrounding the rotating power output shaft, in a direction substantially parallel to the axis of the shaft.
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Axial thrust in vertical turbines
World Pumps, 2015Reliability and availability are crucial for the mining industry, where pump systems are located at isolated and high altitude locations with limited access to machinery and workforce. Petar Ostojic from Neptuno Pumps discusses how incorporating engineered axial thrust bearing assemblies can improve vertical turbine pumps reliability while reducing ...
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Performance of Axial-Flow Turbines
Proceedings of the Institution of Mechanical Engineers, 1948The advent of the gas-turbine engine, with its absolute dependence on high component efficiencies for reasonable economic operation, and the necessity for new materials which will withstand high stresses at much greater temperatures than encountered on steam turbines, has led engineers to review the design of turbines closely both from an aerodynamic ...
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Axial and Radial Turbines for Gases
2015Fundamentals of axial turbines were discussed in the chapter on steam turbines (Chap. 6). Design of turbine parts in gas turbines follows the same principles. When analysing the performance of axial turbines, we assumed, by way of a simplification, a given stator outlet angle (α 1 = 72° and 75°).
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On the Aerodynamic Design of Axial-Flow Compressors and Turbines
Journal of Applied Mechanics, 1948Abstract In this paper a theoretical method is presented to determine the flow of a perfect (frictionless, incompressible) fluid across a cascade built up of arbitrary airfoils. The presentation refers to compressor blading but is immediately applicable to turbine blading.
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Efficiency predictions for axial-flow turbines
International Journal of Mechanical Sciences, 1966Abstract In order to compare the relative merits of various turbine geometries, computer programmes have been written for two loss-correlations and these have been used to predict both total-to-total and total-to-static turbine efficiencies over a wide range of geometries.
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