Download or read book Small Engine Technology Set Task 24 Business and Regional Aircraft System Studies written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-20 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report has been prepared by Honeywell Engines & Systems, Phoenix, Arizona, a unit of Honeywell International Inc., documenting work performed during the period June 1999 through December 1999 for the National Aeronautics and Space Administration (NASA) Glenn Research Center, Cleveland, Ohio, under the Small Engine Technology (SET) Program, Contract No. NAS3-27483, Task Order 24, Business and Regional Aircraft System Studies. The work performed under SET Task 24 consisted of evaluating the noise reduction benefits compared to the baseline noise levels of representative 1992 technology aircraft, obtained by applying different combinations of noise reduction technologies to five business and regional aircraft configurations. This report focuses on the selection of the aircraft configurations and noise reduction technologies, the prediction of noise levels for those aircraft, and the comparison of the noise levels with those of the baseline aircraft. Lieber, Lysbeth Glenn Research Center; Langley Research Center NAS3-27483; 781-20-12-01...

Download or read book Small Engine Technology SET Task 24 Business and Regional Aircraft System Studies written by and published by . This book was released on 2003 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Small Engine Technology SET Task 13 ANOPP Noise Prediction for Small Engines Jet Noise Prediction Module Wing Shielding Module and System Studies Results written by Lysbeth Lieber and published by . This book was released on 2000 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Small Engine Technology Set Task 4 Regional Turboprop Turbofan Engine Advanced Combustor Study written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-11 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under the SET Program Task 4 - Regional Turboprop/Turbofan Engine Advanced Combustor Study, a total of ten low-emissions combustion system concepts were evaluated analytically for three different gas turbine engine geometries and three different levels of oxides of nitrogen (NOx) reduction technology, using an existing AlliedSignal three-dimensional (3-D) Computational Fluid Dynamics (CFD) code to predict Landing and Takeoff (LTO) engine cycle emission values. A list of potential Barrier Technologies to the successful implementation of these low-NOx combustor designs was created and assessed. A trade study was performed that ranked each of the ten study configurations on the basis of a number of manufacturing and durability factors, in addition to emissions levels. The results of the trade study identified three basic NOx-emissions reduction concepts that could be incorporated in proposed follow-on combustor technology development programs aimed at demonstrating low-NOx combustor hardware. These concepts are: high-flow swirlers and primary orifices, fuel-preparation cans, and double-dome swirlers.Reynolds, Robert and Srinivasan, Ram and Myers, Geoffrey and Cardenas, Manuel and Penko, Paul F. (Technical Monitor)Glenn Research CenterTURBOFAN ENGINES; TURBOPROP ENGINES; ENGINE DESIGN; NITROGEN OXIDES; COMPUTATIONAL FLUID DYNAMICS; EXHAUST EMISSION; TAKEOFF; AIRCRAFT LANDING; COMPUTER PROGRAMS; POLLUTION CONTROL

Download or read book Small Engine Technology Investigation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-12 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the small engine technology study task is to identify key, enabling jet engine component technologies for improved performance, primarily for commercial, regional subsonic aircraft. The study involved two regional engine applications: the CF34 turbofan engine, which is installed on a regional jet application and the CT7-9 turboprop, which is installed on regional turboprop applications. Technologies to improve the performance of these applications were identified. Estimates of the benefits and development costs for each technology were made. Performance sensitivities were calculated for each of the technology items identified. The technology improvements were then translated into component improvements and their impact on the aircraft economics was evaluated. A factor of merit based on sfc was calculated as the percent improvement in sfc times the probability of improvement divided by the development evaluation costs associated with that technology item. The technologies were ranked for both the turbofan and turboprop applications.Gregory, Brent B. and Eisenberg, Joseph D. (Technical Monitor)Glenn Research CenterENGINE PARTS; TURBOFAN ENGINES; TURBOPROP ENGINES; TECHNOLOGY ASSESSMENT; PERFORMANCE; COMMERCIAL AIRCRAFT; COST ANALYSIS; ECONOMIC ANALYSIS

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Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1970-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.