The Volatility of Motor Fuels at Low Temperatures PDF Download
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Author: George Thomson
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Author: George Thomson
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Author: George Brown
Publisher:
ISBN: 9780472750528
Category :
Languages : en
Pages : 0
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Book Description
The ease with which a motor will start, the length of time required to warm it up, and the character of its general performance are almost wholly dependent upon the volatility of the fuel as indicated by the A.S.T.M. distillation curve. The 10-percent point is related to the lowest engine temperature at which satisfactory starting may be obtained, and the lowest mixture temperature at which the car may be operated. The 35-percent point is related to the lowest mixture temperature at which satisfactory performance may be obtained during the warming-up period and therefore determines the length of time necessary to warm up the motor. The 65-percent point is related to the lowest mixture temperature at which perfect performance can be obtained. For these reasons the 10-, 35-, and 65-percent points should be low to ensure satisfactory starting, warming-up, and general performance. The 90-percent point, however, should not be so low as to indicate a dry mixture, for this means loss in power or acceleration with many modern cars equipped with heated manifolds and accelerating devices. The vapor pressure of the fuel or the 10-percent point should not be so low as to indicate trouble from vapor-lock. The relations developed in The Volatility of Motor Fuels make it possible to determine the volatility characteristic of a fuel for any desired engine performance.
Author: Jarvis Elmer Miller
Publisher:
ISBN:
Category : Fuel
Languages : en
Pages : 36
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Author: George Granger Brown
Publisher:
ISBN:
Category : Fuel
Languages : en
Pages : 870
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Author: CHARLES L. NICKOLLS
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
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Author: George Brown
Publisher:
ISBN: 9780472750542
Category :
Languages : en
Pages : 0
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Book Description
This publication looks at the relation of motor fuel characteristics to engine performance. In order to give satisfactory engine performance a motor fuel must have adequate partial volatility to enable the motor to be started and operated at the lowest temperatures found in the manifold. The dew point or temperature of complete vaporization should be low enough to prevent condensation on the cylinder walls, and high enough to prevent appreciable superheating of the mixture in highly heated manifolds. The vapor pressure should be limited in order to prevent gassing in the carburetor bowl or fuel ducts. The anti-knock quality of the fuel should be sufficient to prevent engine knocking and the accompanying loss in power and efficiency. Fuels meeting these requirements of volatility may be produced at no increase in cost by blending material having the desired volatility at low temperatures with other material having the desired dew points. Anti-knock qualities are generally improved by increasing the volatility but can be best obtained by selecting or treating the fuel specifically for this purpose.
Author: Richard Wiebe
Publisher:
ISBN:
Category : Bibliography
Languages : en
Pages : 446
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Author: Boris Abramovich Ėnglin
Publisher:
ISBN:
Category : Liquid fuels
Languages : en
Pages : 108
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Contents: The influence of hydrocarbon composition and fuel viscosity on the operation of the fuel supply system engines Viscosity characteristics of hydrocarbons and various fuels at low temperatures Hydrocarbons that determine the crystallization temperature of various fuels The behavior of paraffinic hydrocarbons in fuels Structure formation and anomalies of fuel viscosity The influence of water dissolved in fuels The solubility of water in hydrocarbons and fuels Transition of micro-droplets of water which have separated from a fuel into ice crystals Mechanism of formation of ice crystals during storage and use of fuels The behavior of ice crystals in fuel Measures for preventing the formation of ice crystals in fuelAD-284 1069N6 +++A book describing the behavior of liquid jet, aviation, and diesel fuels at low temperatures and high altitudes. Ice from dissolved water.
Author: Hal Shaub
Publisher: ASTM International
ISBN: 0803128576
Category : Internal combustion engines
Languages : en
Pages : 174
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Book Description
Scientists and engineers consider how the lower starting temperature of new engine designs will impact the flow of oil through them, and how new oil can be developed to address the changes. Seven of the 11 papers, presented to a June 1999 symposium in St. Louis, Missouri, report on a study by a comm
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1598
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Book Description
