Download or read book Measurements of Gas Turbine Combustor and Engine Augmentor Tube Sooting Characteristics written by Mark F. Young and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to determine the changes in soot mean diameter across the combustor and exhaust nozzle of a T63 gas turbine engine, and across an exhaust augmentor tube. D32 within the combustor varied between 0.16 and 0.25 microns, depending upon fuel composition. Data correlation was most successful in this location using an index of refraction of 1.95 -0.66i with sigma = 1.5. In the aft can location (ahead of the exhaust nozzle) D32 was between 0.35 and 0.45 microns, depending upon the fuel-air ratio. Increasing fuel-air ratios decreased D32, also in agreement with the results presented in reference 1. Using NAPC 9 high aromatic fuel, D32 increased across the exhaust nozzle (0.35 to 1.2 microns) and across the augmentor tube (1.2 to 1.5 = 1.9 microns). Malvern data were in good agreement with the results obtained using larger scattering angles. Keywords: Optical sizing of soot; Gas turbine combustors; Exhaust augmentor tubes. (JES).
Download or read book Measurements of Gas Turbine Combustor and Engine Augmentor Tube Sooting Characteristics written by Thomas A. III. Grafton and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to determine the changes in soot mean diameter across the combustor and exhaust nozzle of a T63 gas turbine engine, and across an exhaust augmentor tube. D32 within the combustor varied between 0.16 and 0.25 microns, depending upon fuel composition. Data correlation was most successful in this location using an index of refraction of 1.95 -0.66i with sigma = 1.5. In the aft can location (ahead of the exhaust nozzle) D32 was between 0.35 and 0.45 microns, depending upon the fuel-air ratio. Increasing fuel-air ratios decreased D32, also in agreement with the results presented in reference 1. Using NAPC 9 high aromatic fuel, D32 increased across the exhaust nozzle (0.35 to 1.2 microns) and across the augmentor tube (1.2 to 1.5 = 1.9 microns). Malvern data were in good agreement with the results obtained using larger scattering angles. Keywords: Optical sizing of soot; Gas turbine combustors; Exhaust augmentor tubes. (JES).
Download or read book Measurements of Gas Turbine Combustor and Engine Augmentor Tube Sooting Characteristics written by Thomas A. III. Grafton and published by . This book was released on 1987 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to determine the changes in soot mean diameter across the combustor and exhaust nozzle of a T63 gas turbine engine, and across an exhaust augmentor tube. D32 within the combustor varied between 0.16 and 0.25 microns, depending upon fuel composition. Data correlation was most successful in this location using an index of refraction of 1.95 -0.66i with sigma = 1.5. In the aft can location (ahead of the exhaust nozzle) D32 was between 0.35 and 0.45 microns, depending upon the fuel-air ratio. Increasing fuel-air ratios decreased D32, also in agreement with the results presented in reference 1. Using NAPC 9 high aromatic fuel, D32 increased across the exhaust nozzle (0.35 to 1.2 microns) and across the augmentor tube (1.2 to 1.5 = 1.9 microns). Malvern data were in good agreement with the results obtained using larger scattering angles. Keywords: Optical sizing of soot; Gas turbine combustors; Exhaust augmentor tubes. (JES).
Download or read book Gas Turbine Combustor and Engine Augmentor Tube Sooting Characteristics written by and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to investigate the effects of smoke-suppressant fuel additives, fuel composition and combustor operating environment on the soot characteristics within the combustor and across an engine exhaust augmentor tube. A T63 combustor was used with fuel additive pumps and an exhaust augmentor tube. Soot mean diameters and concentrations were measured at two locations within the combustor and at the exhaust of the augmentor tube using three-wavelength light transmission and multiple-angle forward scattering measurements and collection probes. Fuel and air flow rates were varied and combustor inlet air temperature was varied using a hydrogen-fueled vitiated air heater. Combustor flow conditions were found to significantly change soot characteristics as well as the effects of smoke-suppressant fuel additives. D32(volume-to-surface mean diameter) varied between 0.10 and 0.30 microns within the combustor. D32 increased significantly across the engine augmentor tube, to sizes as large as 0.43 microns.
Download or read book Gas Turbine Combustor and Engine Augmentor Tube Sooting Characteristics written by J. S. Bennett and published by . This book was released on 1986 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to investigate the effects of smoke-suppressant fuel additives, fuel composition and combustor operating environment on the soot characteristics within the combustor and across an engine exhaust augmentor tube. A T63 combustor was used with fuel additive pumps and an exhaust augmentor tube. Soot mean diameters and concentrations were measured at two locations within the combustor and at the exhaust of the augmentor tube using three-wavelength light transmission and multiple-angle forward scattering measurements and collection probes. Fuel and air flow rates were varied and combustor inlet air temperature was varied using a hydrogen-fueled vitiated air heater. Combustor flow conditions were found to significantly change soot characteristics as well as the effects of smoke-suppressant fuel additives. D32(volume-to-surface mean diameter) varied between 0.10 and 0.30 microns within the combustor. D32 increased significantly across the engine augmentor tube, to sizes as large as 0.43 microns.
Download or read book An Experimental Investigation of Sooting Characteristics of a Gas Turbine Combustor and Augmentor Tube written by Richard Howard Lindsay and published by . This book was released on 1988 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to examine the effects of fuel air ratio, fuel additives, fuel composition and inlet air temperature on particle sizes in a gas turbine combustor and augmentor tube. Equipment improvements led to validation of two optical sizing techniques, three-wavelength light transmittance and three-angle forward light scattering. Generally, data obtained agreed well with results of earlier investigations. Particle size variations within the combustor due to changing variables were documented. Effects of changing variables were dependent on inlet conditions and station. Fuel-air ratio had no effect on combustor or augmentor tube exhaust particle size. Keywords: Particle size, Gas turbine combustor, Test cell, Transmittance, Forward light scattering. (MJM).
Download or read book An Experimental Investigation of Soot Size and Flow Fields in a Gas Turbine Engine Augmentor Tube written by Dave J. Urich and published by . This book was released on 1986 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: An instrumented augmentor tube was constructed and used to obtain velocity and temperature profile measurements as a function of augmentor inlet to gas generator nozzle spacing for use in Phoenics computer code validation. Additionally, optical particle size measurement instrumentation in the form of a three wavelength transmission device and a two forward-angle scattering device using a helium-neon laser was designed, constructed and used for determining the effects of the augmentor flow on the change in soot size across the length. Various smoke suppressant fuel additives were also evaluated for their effect on the soot size changes across the augmentor tube length. The initial tests indicated that particle size increased significantly across the augmentor tube length. Keywords: Soot sizing; and Velocity flow fields.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Sizing of Soot in Gas Turbine Combustors and Exhaust Augmentor Tubes written by Mark F. Young and published by . This book was released on 1987 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to examine optical sizing techniques in gas turbine combustors and exhaust augmentor tubes. The two primary objectives of this thesis were to improve the accuracy of optical particle sizing in the combustor and across the augmentor tube, and to verify the improved capabilities with a test series. Multiple wavelength light transmittance and light scattering techniques were used. Particle sizes were found to be .15 to .17 microns in the combustor, increasing in size to .35 to .45 microns in the aft can, and 1.5 to 1.6 microns at the exit of the augmentor tube. A MALVERN 2600 HSD particle sizer was used to verify the accuracy of the T-63 optical system. A number of recommendations for improving the system were discussed. Theses.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1989 with total page 1106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 32 (thesis year 1987) a total of 12,483 theses titles from 22 Canadian and 176 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 32 reports theses submitted in 1987, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book Aeronautical Engineering written by and published by . This book was released on 1990 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Download or read book NASA SP written by and published by . This book was released on 1992 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Correlation of Soot Formation in Turbojet Engines and in Laboratory Flames written by Robert K. Gould and published by . This book was released on 1981 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data obtained from aviation gas turbine combustor tests have been examined to determine the effects of fuel properties on soot-related measurements such as engine smoke number, combustor flame radiation, and/or combustor linear temperature. Some tests of smaller laboratory combustors used to simulate these large combustors were also examined. From the existing data it is clear that soot production is a strong function of the fuel chemical composition. Variations in the physical properties of the fuel do not correlate well with soot-related effects. In studies in which a broad range of fuel properties was examined, correlation of soot-related effects with basic fuel compositional parameters including (1) the hydrogen content of the fuel, (2) the aromatic content of the fuel, and (3) the amount of multiple-ring aromatics in the fuel show that typically only the first of these correlates well. However, it has also been shown that fuel compositions can be chosen for which this correlating parameter fails.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1988 with total page 1428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1988-03 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
