The Design of Fins for Air-cooled Cylinders PDF Download
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Author: Arnold E. Biermann
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 24
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Author: Arnold E. Biermann
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 24
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Author: Robert Siegel
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781724794406
Category :
Languages : en
Pages : 36
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Book Description
The heat transfer performance of baffled cooling fins on cylinder heads of small, air-cooled, general-aviation aircraft engines was analyzed to determine the potential for improving cooling fin design. Flow baffles were assumed to be installed tightly against the fin end edges, an ideal baffle configuration for guiding all flow between the fins. A rectangular flow passage is thereby formed between each set of two adjacent fins, the fin base surface, and the baffle. These passages extend around each side of the cylinder head, and the cooling air absorbs heat as it flows within them. For each flow passage length, the analysis was concerned with optimizing fin spacing and thickness to achieve the best heat transfer for each fin width. Previous literature has been concerned mainly with maximizing the local fin conductance and has not considered the heating of the gas in the flow direction, which leads to higher wall temperatures at the fin passage exits. If the fins are close together, there is a large surface area, but the airflow is restricted. Siegel, R. and Graham, R. W. Glenn Research Center NASA-TP-1054, E-9098 RTOP 505-05...
Author: Charles Fayette Taylor
Publisher: MIT Press
ISBN: 9780262700276
Category : Technology & Engineering
Languages : en
Pages : 804
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Book Description
This revised edition of Taylor's classic work on the internal-combustion engine incorporates changes and additions in engine design and control that have been brought on by the world petroleum crisis, the subsequent emphasis on fuel economy, and the legal restraints on air pollution. The fundamentals and the topical organization, however, remain the same. The analytic rather than merely descriptive treatment of actual engine cycles, the exhaustive studies of air capacity, heat flow, friction, and the effects of cylinder size, and the emphasis on application have been preserved. These are the basic qualities that have made Taylor's work indispensable to more than one generation of engineers and designers of internal-combustion engines, as well as to teachers and graduate students in the fields of power, internal-combustion engineering, and general machine design.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 724
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Author: Oscar W. Schey
Publisher:
ISBN:
Category : Air flow
Languages : en
Pages : 14
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Book Description
An examination of the cooling fins on several modern air-cooled engine cylinders showed large restrictions in the air-flow passages between individual fins, especially around the intake and exhaust ears of the cylinders, when baffles that were in close contact with the fins were used. Tight-fitting baffles, of NACA design, for a cylinder from a Wright R-1820-H engine for a cylinder from a free-flow area from the front to the rear of each interfin air passage. Each cylinder was mounted on a single-cylinder crankcase and tested, first with the tight-fitting baffles and then with the altered baffles. Tests at sea-level conditions were made at constant indicated horsepowers of 66 for the Pratt & Whitney cylinder and 80 for the Wright cylinder (approximately cruising power in each case) with a fuel-air ratio of 0.08. The cooling-air pressure drop was varied from 2 to 30 inches of water. Temperatures were measured at 22 points on the cylinder head, at 10 points on the cylinder barrel, and at 2 points on the cylinder flange.
Author: Richard Van Basshuysen
Publisher: SAE International
ISBN: 076808024X
Category : Technology & Engineering
Languages : en
Pages : 1152
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Book Description
More than 120 authors from science and industry have documented this essential resource for students, practitioners, and professionals. Comprehensively covering the development of the internal combustion engine (ICE), the information presented captures expert knowledge and serves as an essential resource that illustrates the latest level of knowledge about engine development. Particular attention is paid toward the most up-to-date theory and practice addressing thermodynamic principles, engine components, fuels, and emissions. Details and data cover classification and characteristics of reciprocating engines, along with fundamentals about diesel and spark ignition internal combustion engines, including insightful perspectives about the history, components, and complexities of the present-day and future IC engines. Chapter highlights include: • Classification of reciprocating engines • Friction and Lubrication • Power, efficiency, fuel consumption • Sensors, actuators, and electronics • Cooling and emissions • Hybrid drive systems Nearly 1,800 illustrations and more than 1,300 bibliographic references provide added value to this extensive study. “Although a large number of technical books deal with certain aspects of the internal combustion engine, there has been no publication until now that covers all of the major aspects of diesel and SI engines.” Dr.-Ing. E. h. Richard van Basshuysen and Professor Dr.-Ing. Fred Schäfer, the editors, “Internal Combustion Engines Handbook: Basics, Components, Systems, and Perpsectives”
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 766
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Book Description
Reproductions of reports, some declassified, of research done at Aircraft Engine Research Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 200
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Book Description
Author: United States. Work Projects Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 258
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Book Description
