A Comparison of Hydrogen and Propane Fueling of an Internal Combustion Engine

An LP-gas industrial engine was adapted operation on hydrogen or LP-gas so that a comparative analysis of the two fuels could be made. Several alterations were made to the engine to allow operation on hydrogen without backfiring. Performance and cylinder pressures of the engine on the two separate fuels was evaluated under various conditions. The effect on engine performance of water induction for controlling backfiring was also studied. The basic intent of the research program was to evaluate the use of hydrogen for an agricultural engine application.