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Use Of Electric Analogs For Calculation Of Temperature Distribution Of Cooled Turbine Blades
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Book Synopsis Use of Electric Analogs for Calculation of Temperature Distribution of Cooled Turbine Blades by : Herman H. Ellerbrock
Download or read book Use of Electric Analogs for Calculation of Temperature Distribution of Cooled Turbine Blades written by Herman H. Ellerbrock and published by . This book was released on 1953 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical methods are available for calculating cooled-blade temperatures, but the calculations sometimes are tedious, complex, and time-consuming, especially if resutls are required for many sets of conditions and blade designs. As a consequence, an investigation was conducted to develop, simple, investigation was conducted to develop simple, inexpensive electric analogs for determining temperatures of cooled turbine blades. The accuracy of such analogs was determined by fabricating three for specific blade configurations and comparing values of blade temperatures obtained with them with calculated values of temperature when air-cooled blades was considered, and by relatxing the analog values for liquid-cooled blades and determining whether the residuals were acceptable. Analogs were made for a 13-fin shell-supported air-cooled blade, a strut-supported air-cooled blade, and a liquid-cooled blade.
Book Synopsis Technical Note - National Advisory Committee for Aeronautics by : United States. National Advisory Committee for Aeronautics
Download or read book Technical Note - National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 and published by . This book was released on 1952 with total page 44 pages. 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.
Book Synopsis Analogy Between Mass and Heat Transfer with Turbulent Flow by : Edmund E. Callaghan
Download or read book Analogy Between Mass and Heat Transfer with Turbulent Flow written by Edmund E. Callaghan and published by . This book was released on 1953 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of combined heat and mass transfer from a flat plate has been made in terms of Prandtl's simpified physical concept of the turbulent boundary layer. The results of the analysis show that tor conditioins of reasonably small heat and mass transfer, the ratio of the mass- and heat-transfer coefficients is dependent on the Reynolds number of the boundary layer, the Prandtl number of the medium of diffusion, and the Schmidt number of the diffusing fluid in the medium of diffusion. For the particular case of water evaporating into air, the ratio of mass-transfer coefficient to heat-transfer coefficient is found to be slightly greater than unity.
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 and published by . This book was released on 1947 with total page 600 pages. 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.
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 and published by . This book was released on 1953 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Abstracts by : United States. National Advisory Committee for Aeronautics
Download or read book Research Abstracts written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1951 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Bureau of Standards Circular by :
Download or read book National Bureau of Standards Circular written by and published by . This book was released on 1954 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 and published by . This book was released on 1949 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Circular of the Bureau of Standards by :
Download or read book Circular of the Bureau of Standards written by and published by . This book was released on 1954 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Temperature Distribution in Liquid-cooled Turbine Blades by : John N. B. Livingood
Download or read book Analysis of Temperature Distribution in Liquid-cooled Turbine Blades written by John N. B. Livingood and published by . This book was released on 1951 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-dimensional spanwise temperature distributions gave satisfactory results near the coolant passages. One-dimensional chordwise distribution gave a good first approximation to the actual solution in cases where rim cooling was insignificant.
Download or read book NACA Research Memorandum written by and published by . This book was released on 1955 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1974 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Subject Index to Unclassified ASTIA Documents by : Defense Documentation Center (U.S.)
Download or read book Subject Index to Unclassified ASTIA Documents written by Defense Documentation Center (U.S.) and published by . This book was released on 1960 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 1953 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report by : United States. National Advisory Committee for Aeronautics
Download or read book Annual Report written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1953 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
