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Author : Elliott G. Reid
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.F/5 ( download)
Download or read book Annular-jet Ejectors written by Elliott G. Reid and published by . This book was released on 1947 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. F. GATES
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book ANNULAR NOZZLE EJECTOR. written by M. F. GATES and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of the nnular ejector to determine a configuration that accomplishes the following: equals or improves out of ground effect performance; gives superior performance in ground effect; and overcomes the performance loss during ground effect transition. An investigation was made of the combined possibilities of a conically divergent annular primary jet, wide angle augmenter tube, and flow control vanes. The particular primary nozzle geometry chosen (jet aspect ratio, jet divergence angle and area ratio) did not combine effectively with wide angle augmenters to achieve an ejector with out of ground effect performance superior. The investigation also inclu d the use of vanes at the bellmouth and augmenter inlets and a the aug enter exit. Proper use of the vanes reduced the augmentation loss in ground effect transition to approximately 1/3 the loss without vanes. Full-scale ejector tests indicated that bellmouth losses chargeable to lip separation could be eliminated by a flat lip extension. (Author).
Author : R. C. GERMAN
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (227 download)
Download or read book Zero Secondary Flow Ejector-diffuser Performance Using Annular Nozzles written by R. C. GERMAN and published by . This book was released on 1963 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted to determine the performance of zero- secondary flow ejector diffuser systems using annular driving nozzles. Eight annular nozzles with various geometrics, including one expansion-deflection (E- D) nozzle, were tested in cylindrical diffusers having various diffuser lengths. The ejector starting and pumping characteristics were compared and found similar to the empirical relations developed for ejectors having conventional convergent-divergent nozzles. The unique problems associated with simulated altitude testing of the E-D nozzle and the effects of ejector diffuser design on E-D nozzle performance are discussed. A method is described for determining the ejector pumping characteristics when the ejector is unstarted to satisfy the annular nozzle test requirement for altitude simulation at conditions other than minimum cell pressure. (Author).
Author : Robert R. Howell
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)
Download or read book Experimental Operating Performance of a Single-stage Annular Air Ejector written by Robert R. Howell and published by . This book was released on 1959 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John A. Sheldon
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)
Download or read book An Analytical and Experimental Evaluation of a Two-stage Annular Air Ejector for High-energy Wind Tunnels written by John A. Sheldon and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Giuseppe Grazzini
Publisher : Springer
ISBN 13 : 3319752448
Total Pages : 192 pages
Book Rating : 4.3/5 (197 download)
Download or read book Ejectors for Efficient Refrigeration written by Giuseppe Grazzini and published by Springer. This book was released on 2018-03-21 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encompassing both practical applications and recent research developments, this book takes the reader from fundamental physics, through cutting-edge new designs of ejectors for refrigeration. The authors’ unique vision marries successful design, system optimization, and operation experience with insights on the application of cutting-edge Computational Fluid Dynamics (CFD) models. This robust treatment leads the way forward in developing improved ejector technologies. The book covers ejectors used for heat powered refrigeration and for expansion work recovery in compression refrigerators, with special emphasis on two-phase flows of “natural” fluids within the ejector, i.e. steam and carbon dioxide. It features worked examples, detailed research results, and analysis tools.
Author : Yu N. Vasilev
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (227 download)
Download or read book Experimental Investigation of a Triple-jet Gas Ejector written by Yu N. Vasilev and published by . This book was released on 1967 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was made of a three-jet gas ejector in an attempt to improve ejector efficiency. The three-jet ejector consists of a converging nozzle for the high pressure gas and an annular nozzle for the low-pressure gas, and is similar to a conventional ejector; it is, however, also equipped with a tube in the center of the converging nozzle through which part of the low-pressure gas is introduced. Plots were obtained for the dependence of the compression ratio on the pressure drop in the forechamber, at various positions of the central tube, and with the converging nozzles having diameter ratios of 0.55, 0.45, and 0.35. The results showed that a compression ratio of 31 and a pressure drop of 240 can be obtained in the three-jet ejector when the outlet of the central tube is located in the minimum pressure zone. This compares very favorably with the 5.6 and 42.5 values obtained in a conventional ejector. By using a start-up control in which the central tube outlet is gradually moved into the minimum pressure zone, a compression ratio of 44 and a pressure drop of 340 can be obtained. The overall results indicate that the operation of a conventional ejector can be substantially improved by installing a central tube for the low-pressure gas. (Author).
Author : Laurence W. Gertsma
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (31 download)
Download or read book Preliminary Investigation of Off-design Performance of Divergent-ejector-type Rocket Nozzles written by Laurence W. Gertsma and published by . This book was released on 1960 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bengt Ahrén
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.E/5 ( download)
Download or read book Analysis of Ejectors Used as Supersonic Propelling Nozzles for Jet Engines written by Bengt Ahrén and published by . This book was released on 1968 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need of efficient exhaust systems for supersonic aircraft has caused an increasing use of ejectors as propelling nozzles. The purpose of this work is to provide analytical methods for determination of ejector characteristics and pressure distribution along the ejector wall, required for thrust performance predictions.
Author : Fred D. Kochendorfer
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.3/5 (91 download)
Download or read book Note on Performance of Aircraft Ejector Nozzles at High Secondary Flows written by Fred D. Kochendorfer and published by . This book was released on 1954 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (317 download)
Download or read book Preliminary Investigation of Off-design Performance of Divergent-ejector-type Rocket Nozzles written by and published by . This book was released on 1960 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Leroy Hill Jones
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (31 download)
Download or read book Experimental Study of Zero-flow Ejectors Using Gaseous Nitrogen written by William Leroy Hill Jones and published by . This book was released on 1960 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : 1556 pages
Book Rating : 4.:/5 (319 download)
Download or read book Technical Publications Announcements with Indexes written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 1556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard A. Yeager
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (317 download)
Download or read book Investigation of an Ejector-type Nozzle for Rocket Application written by Richard A. Yeager and published by . This book was released on 1960 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arthur M. Trout
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.3/5 (91 download)
Download or read book Internal Performance of Several Divergent-shroud Ejector Nozzles with High Divergence Angles written by Arthur M. Trout and published by . This book was released on 1957 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 950 pages
Book Rating : 4.3/5 (243 download)
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1960 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.:/5 (334 download)
Download or read book Safety Valve written by and published by . This book was released on 1892 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
