- Author
- Bridgeman, O. C.
- Title
- Equilibrium Volatility of Motor Fuels From the Standpoint of Their Use in Internal Combustion Engines.
- Journal
- Journal of Research of the National Bureau of Standards, Vol. 13, 53-109, July 1934
- Report
- Research Paper 694; RP 694,
- Keywords
- motor fuels | internal combustion engines | fuel volatility | automobile fuels | gasoline | test methods | experiments | equations | fuel oils | evaporation
- Identifiers
- practical problem of motor fuel volatility; analysis of the volatility problem; definitions of technical terms used; ASTM evaporation data on fuels used in volatility work; equilibrium air-evaporation apparatus and method of use; method of treatment of experimental data; correlation of volatility data with ASTM distillation data
- Abstract
- One of the larger problems in connection with the relation between fuel characteristics and engine performance is concerned with fuel volatility. For many years, the National Bureau of Standards conducted an investigation of fuel volatility, in cooperation with the automotive and petroleum industries, and the present paper covers the experimental data obtained and the conclusions reached in this investigation. An apparatus and method are described for the measure. ment of the equilibrium volatility of motor fuels, and experimenhl data are presented on 38 gasolines and blends covering a wide range of volatility. A correlation is shown to exist betwen equilibrium volatilitv data and distillation data obtained by the standard A.S.T.M. method. By use of the equations deduced, it is possible to obtain from distillation data all of the equilibrium volatility data of interest in connection with engine performance.