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Dump Combustor Parametric Investigation
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Book Synopsis Dump Combustor Parametric Investigation by : Frank D. Stull
Download or read book Dump Combustor Parametric Investigation written by Frank D. Stull and published by . This book was released on 1974 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of scale model coaxial dump combustors from 2 inch to 5 inch D were tested on a thrust stand with JP-4 fuel over a wide range of ramjet test conditions. Baseline conditions were selected to approximate 'pressure scaling criteria' in which chamber pressure times combustor diameter remains constant. JP-4 fuel was injected perpendicular to the airstream from eight plane tube injectors. Fuel/air ratio, chamber pressure and nozzle throat diameter were varied for each size chamber. Lean blow-out limit, combustion efficiency, combustor pressure drop, and combustion instability characteristics were obtained for each test point.
Book Synopsis Investigation of Dump Combustors with Flame Holders by : Frank D. Stull
Download or read book Investigation of Dump Combustors with Flame Holders written by Frank D. Stull and published by . This book was released on 1976 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted on the addition of flameholders to the inlet duct of a 5 inch D dump combustor in an attempt to reduce combustor length. Basic flameholder configurations, percentage blockage, leading edge bluntness, and trailing edge contours were varied to characterize the significant features of flameholders. A parametric study was then conducted around the two best flameholder configurations in which combustor length-to-diameter ratio (L/D), characteristic length, inlet temperature, and chamber pressure were varied. Combustion efficiency and combustor pressure losses were determined from each of these runs and compared to previous results for the basic dump combustor. Results are presented which show a marked difference in performance with small changes in trailing edge contour. Increases of up to 30 points in combustion efficiency were obtained when the best flameholder was added to the basic dump combustor with a L/D = 3.
Book Synopsis Large Scale Low Pressure Dump Combustor Performance by : Roger R. Craig
Download or read book Large Scale Low Pressure Dump Combustor Performance written by Roger R. Craig and published by . This book was released on 1976 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation has been conducted extending previous results of small scale dump combustors to larger combustors (8 to 12-in D) tested at lower pressures. A parametric study was then conducted around the 12-in baseline configuration, with and without flameholders, in which combustor length-to-diameter (L/D), Combustor Length-to-step height (L/h), characteristic length (L*), fuel injector type, inlet temperature and chamber pressure were varied. Lean blowout limit, combustion efficiency, and combustor pressure drop were obtained from these runs using JP-4 fuel and compared to previous small scale data. A limited number of additional tests were conducted with Shelldyne-H fuel. Results show that good combustion efficiencies can be achieved with relatively low blockage flameholders resulting in higher overall performance for the larger combustors. (Author).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FY ... US Air Force Plan for Defense Research Sciences by :
Download or read book FY ... US Air Force Plan for Defense Research Sciences written by and published by . This book was released on 1983 with total page 236 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 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fluid Mechanics of Combustion by : J. L. Dussourd
Download or read book Fluid Mechanics of Combustion written by J. L. Dussourd and published by . This book was released on 1974 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pressure Losses in Simple Dump Combustors by :
Download or read book Pressure Losses in Simple Dump Combustors written by and published by . This book was released on 1972 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume limited missiles require a particularly exacting form of component integration. In the integral rocket ramjet (IRR) system the propellant, for the solid rocket booster, is cast directly into the same volume that is used for the ramjet combustor. This study is directed to a better understanding of the pressure losses in dump combustors. Attendant to this study was an effort to simplify methods of predicting compressible flow losses. Application of the incompressible pressure loss factors and equations to compressible problems can lead to serious errors at Mach numbers above 0.3. During this study an equation was derived to predict compressible pressure losses. This equation expresses the pressure loss as a function of the Mach number and a pressure loss factor which is independent of Mach number. Subsequently it was found that the compressible pressure loss factor, called N sub D the dissipation number, was numerically equal to the incompressible pressure loss factor, K sub t, for any given fluid system. The incompressible parameter is basically a function of geometry and Reynolds number and there exists a wealth of data relating to it. Two basic dump combustor designs were selected for testing because of their possible use in missile propulsion. The first was a coaxial circular inlet model, the second a dual side-mounted rectangular inlet model. The measured dissipation numbers were compared to the predicted incompressible parameters and found to be encouragingly similar. The results of this study show, on a preliminary basis, that it may be possible to use the existing incompressible data to predict compressible pressure losses.
Book Synopsis Controlled Combustion of Toxic Waste Materials in a Compact Dump Combustors by :
Download or read book Controlled Combustion of Toxic Waste Materials in a Compact Dump Combustors written by and published by . This book was released on 1996 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large-eddy simulation (LES) model was developed to simulate waste injection and combustion in a compact dump combustor. The configuration and the dimensions of the modeled was chosen to correspond identically to the experimental device. The first phase of the study investigated non- reacting fuel-air mixing in the combustor. The fuel (here considered to represent the waste) was injected using both passive and active control of the injection process. The pressure field in the combustor was used as a sensor and the fuel was injected both in-phase and out-of-phase with the local (at the dump plane) pressure oscillation. Results showed that when fuel (or waste) is injected in-phase with the local pressure oscillation (that is when the pressure is higher than the mean). then significantly enhanced entrainment of the fuel into the large coherent structures in the shear layer can occur. Engulfment of the waste into the vortices can increase the waste residence time in the combustor and hence increase its consumption. Results with and without heat release confirm this observation - results are in good agreement with the observation in the laboratory.
Book Synopsis Smart Technologies for Energy, Environment and Sustainable Development, Vol 1 by : Mohan Lal Kolhe
Download or read book Smart Technologies for Energy, Environment and Sustainable Development, Vol 1 written by Mohan Lal Kolhe and published by Springer. This book was released on 2022-03-07 with total page 987 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains select proceedings of the International Conference on Smart Technologies for Energy, Environment, and Sustainable Development (ICSTEESD 2020). The book is broadly divided into the themes of energy, environment, and sustainable development; and discusses the significance and solicitations of intelligent technologies in the domain of energy and environmental systems engineering. Topics covered in this book include sustainable energy systems including renewable technologies, energy efficiency, techno-economics of energy system and policies, integrated energy system planning, environmental management, energy efficient buildings and communities, sustainable transportation, smart manufacturing processes, etc. The book will be a valuable reference for young researchers, professionals, and policy makers working in the areas of energy, environment and sustainable development.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AIAA 83-0410 - AIAA 83-0501 written by and published by . This book was released on 1983 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Technologies in Flow Dynamics and Combustion in Propulsion and Power by : Lei Luo
Download or read book Advanced Technologies in Flow Dynamics and Combustion in Propulsion and Power written by Lei Luo and published by Frontiers Media SA. This book was released on 2022-08-05 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Smart Technologies for Energy, Environment and Sustainable Development, Vol 2 by : Mohan Lal Kolhe
Download or read book Smart Technologies for Energy, Environment and Sustainable Development, Vol 2 written by Mohan Lal Kolhe and published by Springer Nature. This book was released on 2022-02-17 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains select proceedings of the International Conference on Smart Technologies for Energy, Environment, and Sustainable Development (ICSTEESD 2020). The book is broadly divided into the themes of energy, environment, and sustainable development; and discusses the significance and solicitations of intelligent technologies in the domain of energy and environmental systems engineering. Topics covered in this book include sustainable energy systems including renewable technologies, energy efficiency, techno-economics of energy system and policies, integrated energy system planning, environmental management, energy efficient buildings and communities, sustainable transportation, smart manufacturing processes, etc. The book will be a valuable reference for young researchers, professionals, and policy makers working in the areas of energy, environment and sustainable development.
Book Synopsis 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 11-14, 2004, Fort Lauderdale, FL.: 04-3850 - 04-3899 by :
Download or read book 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 11-14, 2004, Fort Lauderdale, FL.: 04-3850 - 04-3899 written by and published by . This book was released on 2004 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the European Automotive Congress EAEC-ESFA 2015 by : Cristian Andreescu
Download or read book Proceedings of the European Automotive Congress EAEC-ESFA 2015 written by Cristian Andreescu and published by Springer. This book was released on 2015-11-25 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume includes selected and reviewed papers from the European Automotive Congress held in Bucharest, Romania, in November 2015. Authors are experts from research, industry and universities coming from 14 countries worldwide. The papers are covering the latest developments in fuel economy and environment, automotive safety and comfort, automotive reliability and maintenance, new materials and technologies, traffic and road transport systems, advanced engineering methods and tools, as well as advanced powertrains and hybrid and electric drives.
Book Synopsis 16th JANNAF Combustion Meeting, Naval Postgraduate School, Monterey, California, September 10-14, 1979: Nitramine and solid rocket propellants, ramjets, and liquid bipropellants (unclassified by :
Download or read book 16th JANNAF Combustion Meeting, Naval Postgraduate School, Monterey, California, September 10-14, 1979: Nitramine and solid rocket propellants, ramjets, and liquid bipropellants (unclassified written by and published by . This book was released on 1979 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
