ABSTRACT
Table 3.1 gives selected thermophysical, chemical, and combustion properties of hydrogen [1, 4-12]. Some of the key overall properties of hydrogen that are relevant to its employment as an engine fuel are also listed in this table together with the corresponding values of methane, the other promising gaseous fuel for engine applications, and those of gasoline [6]. Where property values of gasoline could not be found, these are represented by iso-octane vapor [7] or the arithmetic average of normal heptane and octane [8].
