Effect of synergistic interaction between hydrogen inductions with Simarouba glauca-diesel blend for CI engine application

Abstract

The study is mainly to investigate the use of straight Simarouba oil as an alternate in the DI compression ignition engine and also the effect of hydrogen induction. Simarouba fuel is used as pilot fuel and hydrogen is used as secondary fuel which is inducted in inlet manifold by small modification in the CI engine. The mass share of hydrogen induction is fixed to maximum limit with the use of a manometer and for safety two flame arresters are used to avoid backfire in the hydrogen fuel line. The maximum hydrogen mass share percentage for diesel, B20, and B40 are 12.20%, 13.05% and 10.88% is fixed in full load condition. In maximum mass share, the BTE at full load conditions for diesel, B20, and B40 are 34.80%, 33.10%, and 29.65%. The obtained value of B20 at 13.05% mass share is nearly equal to the diesel value (0% mass share of hydrogen). The major drawback of increasing the mass share of hydrogen will increase nitric oxide emission due to the high heating value of hydrogen. The nitric oxide is increasing around 18% in the maximum mass share of hydrogen for B20 compare with diesel (0% mass share of hydrogen). But, there is a decreasing trend for other emissions like CO, HC, and smoke. This may be due to the absence of a carbon molecule in hydrogen fuel. The blended fuel B20 with maximum mass share obtain a better result than diesel with 0% mass share of hydrogen.