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CHAPTER 6 Fuels and Combustion

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Chapter 6, Pages 111-142 (doi:10.13031/2013.24141) in Chapter 6 in Engine and Tractor Power, 4th edition. St. Joseph, Michigan: ASAE. . Copyright 2004 American Society of Agricultural and Biological Engineers, St. Joseph, Mich.
Authors:   Carroll E. Goering and Alan C. Hansen
Keywords:   Crude Oil and Refining, Combustion and Exhaust Emissions, Fuel Property Measurements, Specific Gravity of Fuels, Heating Value of Fuels, Fuel Volatility and Flash Point, Fuel Viscosity, Cloud and Pour Points, Fuel Impurities127, Octane Rating and Engine Knock, Cetane Rating, Fuel Additives, Alternative Fuels, Fuel Storage

Fuels for mobile vehicles must have certain characteristics if the vehicles are to operate successfully. The fuels must have a high energy value so that a sufficient supply of energy can be stored in a reasonably small space on the vehicle. The fuels must vaporize and ignite easily in the engine, yet they must be reasonably safe to handle. Nearly all engine fuels today are derived from petroleum. World petroleum reserves are diminishing, but larger quantities of tar sands, shale oil, and coal remain in the earth. After suitable processing and refining, these latter fuels will have properties similar to petroleum. Eventually, however, all fossil fuels will be depleted, and alcohol and other renewable fuels may come into widespread use.

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