Application of IMEP and MBF50 indexes for controlling combustion in dual-fuel reciprocating engine

As a result of using a two-parameter engine control strategy, it is possible to obtain optimum settings for the diesel oil and natural gas doses at which the Pareto optimum is obtained. It has been found, that at partial engine load maintaining constant IMEP or alternatively a constant CoC is difficult. Operation at heavy load indicates bigger compatibility with strategy to keep both IMEP and CoC constant. Operation in such conditions, with a large share of gas fuel energy, requires a larger dose of diesel oil to keep the values of thermodynamic parameters within the acceptable range, as well as to limit the increase in THC emission.