DUAL FUELED DIESEL ENGINE WITH DISSOCIATED METHANOL AND GAS OIL.

This paper presents the results of performance testing of a dual fueled diesel engine with dissociated methanol and gas oil. The engine system equipped with a methanol dissociation reactor has a potential for improving the engine system efficiency, because the reaction of methanol dissociation is endothermic and the energy required for the reaction is supplied by the exhaust waste heat. However the presence of knock, misfire and poor combustion of the premixed dissociated methanol-air mixture prevent and extraction of this potential of the engine system. It is concluded from the test results that we can get higher efficiency and a lower smoke level than the original engine if the proper methanol/gas oil ratio and injection timing are selected as operating conditions to avoid the above undesirable phenomena.