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Author :
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (317 download)
Download or read book Radial Turbine Cooling written by and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lizet Tirres
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (317 download)
Download or read book Experimental Evaluation of a Cooled Radial-inflow Turbine written by Lizet Tirres and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard Kent Davis
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (115 download)
Download or read book Mechanical and Cooling Design Considerations of a Radial Inflow Turbine written by Richard Kent Davis and published by . This book was released on 1974 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hany Moustapha
Publisher : Concepts Eti
ISBN 13 : 9780933283121
Total Pages : 358 pages
Book Rating : 4.2/5 (831 download)
Download or read book Axial and Radial Turbines written by Hany Moustapha and published by Concepts Eti. This book was released on 2003 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Engineering Design and Analysis of Axlal and Radial Turbines.
Author : W. U. ROSSLER
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book Investigation of Veil Cooling for Radial-flow Turbines written by W. U. ROSSLER and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: ARE DESCRIBED. The study is concerned with the effect of introducing a thin film of cool gas between the main hot gas flow and the rotating turbine disk. The program was conducted in two parts. The first part, carried out by S, Test equipment, Infrared equipment, Heaters, Gas turbine nozzles, Rotating structures. Open-ended Terms: Radial-flow turbines. Results of an investigation into the behavior of veil (or film) cooling of a radial-inflow turbineARE DESCRIBED. The study is concerned with the effect of introducing a thin film of cool gas between the main hot gas flow and the rotating turbine disk. The program was conducted in two parts. The first part, carried out by AiResearch Manufacturing Company, comprised an experimental study of the cooling phenomenon on an actual, hot, high-speed turbine. The second part, being conducted at Stanford University, comprises an analytical study and a model experimental study designed to measure basic heat transfer coefficients. The effectiveness of veil cooling was measured by means of thermocouples imbedded in the rotor, with readings brought out through a precision slip-ring unit. Tests were made with several film thicknesses and under various operating conditions. Correlations of the data are presented and discussed. The results of the Stanford work are reviewed. Analytical predictions of heat transfer to a rotating disk are given. The model experimental apparatus is described and plans for the concluding test work are discussed. (Author).
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723141973
Total Pages : 120 pages
Book Rating : 4.1/5 (419 download)
Download or read book Heat Transfer Experiments in the Internal Cooling Passages of a Cooled Radial Turbine Rotor written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was conducted (1) to experimentally measure, assess and analyze the heat transfer within the internal cooling configuration of a radial turbine rotor blade and (2) to obtain heat transfer data to evaluate and improve computational fluid dynamics (CFD) procedures and turbulent transport models of internal coolant flows. A 1.15 times scale model of the coolant passages within the NASA LERC High Temperature Radial Turbine was designed, fabricated of Lucite and instrumented for transient beat transfer tests using thin film surface thermocouples and liquid crystals to indicate temperatures. Transient heat transfer tests were conducted for Reynolds numbers of one-fourth, one-half, and equal to the operating Reynolds number for the NASA Turbine. Tests were conducted for stationary and rotating conditions with rotation numbers in the range occurring in the NASA Turbine. Results from the experiments showed the heat transfer characteristics within the coolant passage were affected by rotation. In general, the heat transfer increased and decreased on the sides of the straight radial passages with rotation as previously reported from NASA-HOST-sponsored experiments. The heat transfer in the tri-passage axial flow region adjacent to the blade exit was relatively unaffected by rotation. However, the heat transfer on one surface, in the transitional region between the radial inflow passage and axial, constant radius passages, decreased to approximately 20 percent of the values without rotation. Comparisons with previous 3-D numerical studies indicated regions where the heat transfer characteristics agreed and disagreed with the present experiment. Johnson, B. V. and Wagner, J. H. Unspecified Center TURBINE BLADES; INTERNAL FLOW; RADIAL FLOW; THERMOCOUPLES; THIN FILMS; COOLING; TRANSIENT HEATING; TEMPERATURE MEASUREMENT; TURBULENT FLOW; REYNOLDS NUMBER; SCALE MODELS; LIQUID CRYSTALS; POLYMETHYL METHACRYLATE; VORTICES; COMPUTATIONAL FLUID DYNAMICS...
Author :
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (317 download)
Download or read book Heat Transfer Experiments in the Internal Cooling Passages of a Cooled Radial Turbine Rotor written by and published by . This book was released on 1996 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of a Thermal and Structural Analysis Procedure for Cooled Radial Turbines written by and published by . This book was released on 1988 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A procedure for computing the rotor temperature and stress distributions in a cooled radial turbine is considered. Existing codes for modeling the external mainstream flow and the internal cooling flow are used to compete boundary conditions for the heat transfer and stress analyses. An inviscid, quasi three dimensional code computes the external free stream velocity. The external velocity is then used in a boundary layer analysis to compute the external heat transfer coefficient. Coolant temperatures are computed by a viscous one dimensional internal flow code for the momentum and energy equation. These boundary conditions are input to a three dimensional heat conduction code for calculation of rotor temperatures. The rotor stress distribution may be determined for the given thermal, pressure and centrifugal loading. The procedure is applied to a cooled radial turbine which will be tested at the NASA Lewis Research Center. Representative results from this case are included.
Author : Erian Aziz Baskharone
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (199 download)
Download or read book Investigation of Different Cooling Categories of a Radial Inflow Turbine Rotor Using the Finite Element Technique written by Erian Aziz Baskharone and published by . This book was released on 1975 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P.H. Snyder
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (11 download)
Download or read book The Design of an Air-cooled Metallic High Temperature Radial Turbine written by P.H. Snyder and published by . This book was released on 1988 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. M. Lane
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Cooled Radial In-flow Turbines for Advanced Gas Turbine Engines written by J. M. Lane and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paper presents the results of several Army-sponsored programs, the first of which addresses the performance potential for high-temperature radial turbine.
Author : E. N. PETRICK
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (227 download)
Download or read book The Effect of Rotor Speed Upon the Effectiveness of Cooling a Radial Flow Turbine with Air written by E. N. PETRICK and published by . This book was released on 1953 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781730936142
Total Pages : 98 pages
Book Rating : 4.9/5 (361 download)
Download or read book Cooled High-Temperature Radial Turbine written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-07 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program was the design and fabrication of a air-cooled high-temperature radial turbine (HTRT) intended for experimental evaluation in a warm turbine test facility at the LeRC. The rotor and vane were designed to be tested as a scaled version (rotor diameter of 14.4 inches diameter) of a 8.021 inch diameter rotor designed to be capable of operating with a rotor inlet temperature (RIT) of 2300 F, a nominal mass flow of 4.56 lbm/sec, a work level of equal or greater than 187 Btu/lbm, and efficiency of 86 percent or greater. The rotor was also evaluated to determine it's feasibility to operate at 2500 F RIT. The rotor design conformed to the rotor blade flow path specified by NASA for compatibility with their test equipment. Fabrication was accomplished on three rotors, a bladeless rotor, a solid rotor, and an air-cooled rotor. Snyder, Philip H. Unspecified Center...
Author : L. Danielle DiCicco
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)
Download or read book Measurement of the Coolant Channel Temperatures and Pressures of a Cooled Radial-inflow Turbine written by L. Danielle DiCicco and published by . This book was released on 1994 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chaitanya D Ghodke
Publisher : SAE International
ISBN 13 : 0768095026
Total Pages : 238 pages
Book Rating : 4.7/5 (68 download)
Download or read book Gas Turbine Blade Cooling written by Chaitanya D Ghodke and published by SAE International. This book was released on 2018-12-10 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas turbines play an extremely important role in fulfilling a variety of power needs and are mainly used for power generation and propulsion applications. The performance and efficiency of gas turbine engines are to a large extent dependent on turbine rotor inlet temperatures: typically, the hotter the better. In gas turbines, the combustion temperature and the fuel efficiency are limited by the heat transfer properties of the turbine blades. However, in pushing the limits of hot gas temperatures while preventing the melting of blade components in high-pressure turbines, the use of effective cooling technologies is critical. Increasing the turbine inlet temperature also increases heat transferred to the turbine blade, and it is possible that the operating temperature could reach far above permissible metal temperature. In such cases, insufficient cooling of turbine blades results in excessive thermal stress on the blades causing premature blade failure. This may bring hazards to the engine's safe operation. Gas Turbine Blade Cooling, edited by Dr. Chaitanya D. Ghodke, offers 10 handpicked SAE International's technical papers, which identify key aspects of turbine blade cooling and help readers understand how this process can improve the performance of turbine hardware.
Author : M. Branger
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book VEIL COOLING OF RADIAL-FLOW TURBINES. written by M. Branger and published by . This book was released on 1963 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: This suppliement presents results obtained in limited tests with 1500F turbine gas inlet temperature. The position of the cooling jet with respect to the disk of the wheel was found to be an important parameter in veil cooling. When the flow of the issuing cooling jet is at the surface of the disk, it provides a high temperature gradient for heat transfer, but it does not induce any considerable mixing with the main gas stream, and thus does not promote a high heat transfer. When the cooling jet is directed at a slight distance from the surface of the disk, there is more cooling gas mixing with the main gas stream, and the effect of this spacing required investigation to provide a sound basis for higher temperature tests of veil cooling effects. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 95 pages
Book Rating : 4.:/5 (227 download)
Download or read book Cooled High-Temperature Radial Turbine Program. Phase 2 written by and published by . This book was released on 1992 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program was the design and fabrication of a air-cooled high-temperature radial turbine (HTRT) intended for experimental evaluation in a warm turbine test facility at the Lewis Research Center. The rotor and vane were designed to be tested as a scaled version (rotor diameter of 14.4 inches diameter) of a 8.021 inch diameter rotor designed to be capable of operating with a rotor inlet temperature (RIT) of 2300 deg. F, a nominal mass flow of 4.56 lbm/sec, a work level of equal or greater than 187 Btu/lbm, and an efficiency of 86% or greater. The rotor was also evaluated to determine it's feasibility to operate at 2500 deg F RIT. The rotor design conformed to the rotor blade flow path specified by NASA for compatibility with their test equipment. Fabrication was accomplished on three rotors, a bladeless rotor, a solid rotor, and an air-cooled rotor.
