Download or read book High resolution surface temperature measurements on rotating turbine blades with an infrared pyrometer written by Orlando W. Uguccini and published by . This book was released on 1976 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared Pyrometer for High Resolution Surface Temperature Measurements on Rotating Turbine Blades written by Orlando W. Uguccini and published by . This book was released on 1976 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1976 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1980 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1976 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Turbines written by Claire Soares and published by Elsevier. This book was released on 2011-04-01 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: This major reference book offers the professional engineer - and technician - a wealth of useful guidance on nearly every aspect of gas turbine design, installation, operation, maintenance and repair. The author is a noted industry expert, with experience in both civilian and military gas turbines, including close work as a technical consultant for GE and Rolls Royce.•Guidance on installation, control, instrumentation/calibration, and maintenance, including lubrication, air seals, bearings, and filters•Unique compendium of manufacturer's specifications and performance criteria, including GE, and Rolls-Royce engines•Hard-to-find help on the economics and business-management aspect of turbine selection, life-cycle costs, and the future trends of gas turbine development and applications in aero, marine, power generation and beyond
Download or read book Surface Pyrometry in Presence of Radiation from Other Sources with Application to Turbine Blade Temperature Measurement written by and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integration of Infrared Thermography to Measure Part to Part Cooling Variations on Turbine Blades written by Brian Knisely and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Firing temperatures in gas turbine engines continue to increase to allow for higher efficiencies and reduced emissions. Cold air extracted from the compressor is used to reduce temperatures of turbine components, but efficient use of these cooling flows is needed. The thermal performance of a cooled turbine part is quantified by the overall effectiveness, where improved designs are characterized by higher effectiveness. Previous work with rotating blades used point-based sensors to study heat transfer, while spatially-resolved measurements were limited to stationary geometries. The current study builds on past work by studying effectiveness on rotating blades at engine-relevant test conditions using spatially-resolved measurements. Infrared (IR) imaging is a technique that has been widely used in gas turbine heat transfer research to measure spatially-resolved surface temperatures. Advancements in IR technologies have allowed for sensors that can measure turbine blades rotating at engine speeds, in excess of 10,000 RPM. This dissertation documents the challenges of implementing IR imaging with turbine blades, provides approaches to implement such a measurement system, and demonstrates the use of IR imaging to assess blade-to-blade cooling variations that result from manufacturing variations. An IR imaging system was developed to measure surface temperature on blades rotating at engine-relevant conditions at the Steady Thermal Aero Research Turbine (START) test facility. The IR imaging system response was characterized at integration times from 1.0 to 10.0 microseconds and 10 to 200 images averaged for stationary subjects and rotating subjects at several speeds. An experimental method and scaling parameter were developed to determine the optimal integration time for a given object speed and size. The ability to study film cooling on rotating blades with IR imaging was demonstrated. A procedure to map the acquired images to three-dimensional part space for comparisons with model predictions is described, with considerations for which mapping features to use, mesh generation, and uncertainty estimation. Manufacturing variations that affect the performance and life of film-cooled turbine blades were studied in the START rig. IR imaging was used to measure overall effectiveness variations on a section of the pressure side of nine rotating blades with the same nominal design. Film cooling trajectories were compared for the same cooling hole on each blade. Thermal results were correlated to blade flow measurements for the full blade and specific cooling holes. At low flow rates the cooling jet is swept in the mainstream flow direction, while the jet is more aligned with the hole axis at high flow rates. Variations in both film trajectories and effectiveness increased as cooling flow rate increased. Effectiveness varied by nearly 10% between blades, which when scaled to engine conditions indicated that some blades would last only half as long as other blades due to manufacturing variations.
Download or read book Surface Pyrometry in Presence of Radiation from Other Sources with Application to Turbine blade Temperature Measurement written by Donald R. Buchele and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Local Strain and Temperature Measurement written by J Ziebs and published by Woodhead Publishing. This book was released on 1999-03-05 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of a symposium held in Berlin in March 1996, drawing together practical expertise in measurement techniques, with typical applications ranging from in situ measurements of strain and rotation on small specimens through notched specimens and single crystal up to turbine blade shaped samples and full scale component testing. The symposium also highlighted new techniques such as speckle interferometry and image analysis.
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.
Download or read book Bibliography of Lewis Research Center Technical Contributions Announced in 1976 written by and published by . This book was released on 1977 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 614 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 1977 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1976 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1978 WESCON Technical Papers written by and published by . This book was released on 1978 with total page 1158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
