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Procedure for Calculating Turbine Blade Temperatures and Comparison of Calculated with Observed Values for Two Stationary Air-cooled Blades

1952 Aerodynamics
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Release : 1952
Genre : Aerodynamics
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Book Synopsis Procedure for Calculating Turbine Blade Temperatures and Comparison of Calculated with Observed Values for Two Stationary Air-cooled Blades by : W. Byron Brown

Download or read book Procedure for Calculating Turbine Blade Temperatures and Comparison of Calculated with Observed Values for Two Stationary Air-cooled Blades written by W. Byron Brown. This book was released on 1952. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Local and average blade temperatures were calculated for two stationary air-cooled turbine blades with 10 tubes and 13 fins forming the internal heat-transfer surfaces. These temperatures were calculated using previously published NACA temperature-distribution equations and the most recent theories for determining heat-transfer coefficients, including for the first time the allowance for effects of variable wall temperature on gas-to-blade heat-transfer coefficients at the leading and trailing sections of turbine blades. Comparison of calculated and experimental blade temperatures, for gas temperatures of 300° and 1000°F, resulted in good agreement.

A Selected Listing of NASA Scientific and Technical Reports for ...

1954 Aeronautics
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Release : 1954
Genre : Aeronautics
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Book Synopsis A Selected Listing of NASA Scientific and Technical Reports for ... by :

Download or read book A Selected Listing of NASA Scientific and Technical Reports for ... written by . This book was released on 1954. Available in PDF, EPUB and Kindle. Book excerpt:

Index of NACA Technical Publications

1956 Aeronautics
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Release : 1956
Genre : Aeronautics
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Book Synopsis Index of NACA Technical Publications by : United States. National Advisory Committee for Aeronautics

Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics. This book was released on 1956. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Paper

1978 Astronautics
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Release : 1978
Genre : Astronautics
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Book Synopsis NASA Technical Paper by :

Download or read book NASA Technical Paper written by . This book was released on 1978. Available in PDF, EPUB and Kindle. Book excerpt:

Temperatures and Stresses on Hollow Blades for Gas Turbines

1947 Blades
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Release : 1947
Genre : Blades
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Book Synopsis Temperatures and Stresses on Hollow Blades for Gas Turbines by : Erich Pollman

Download or read book Temperatures and Stresses on Hollow Blades for Gas Turbines written by Erich Pollman. This book was released on 1947. Available in PDF, EPUB and Kindle. Book excerpt: The present treatise reports on theoretical investigations and test-stand measurements which were carried out in the BMW Flugmotoren GMbH in developing the hollow blade for exhaust gas turbines. As an introduction the temperature variation and the stress on a turbine blade for a gas temperature of 900 degrees and circumferential velocities of 600 meters per second are discussed. The assumptions onthe heat transfer coefficients at the blade profile are supported by tests on an electrically heated blade model. The temperature distribution in the cross section of a blade Is thoroughly investigated and the temperature field determined for a special case. A method for calculation of the thermal stresses in turbine blades for a given temperature distribution is indicated. The effect of the heat radiation on the blade temperature also is dealt with. Test-stand experiments on turbine blades are evaluated, particularly with respect to temperature distribution in the cross section; maximum and minimum temperature in the cross section are ascertained. Finally, the application of the hollow blade for a stationary gas turbine is investigated. Starting from a setup for 550 C gas temperature the improvement of the thermal efficiency and the fuel consumption are considered as well as the increase of the useful power by use of high temperatures. The power required for blade cooling is taken into account.

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