Experimental investigations on Hydrogen supplemented Pinus Sylvestris oil-based diesel engine for performance enhancement and reduction in emissions

The paper mainly aims at improving the performance and reduction in exhaust emissions of an indirect injection diesel engine fuelled with alternative modern biofuel Pinus Sylvestris oil, which is traditionally oxygenated obtained from resins tree. Its physical chemical properties are similar to regular petro-diesel fuel can be used without transesterification directly engines. On other hand, a lower cetane value hangs its direct use Hence, experiment followed complementary approach supplementing small dosages gaseous Hydrogen (GH2), highly flammable, colorless, odorless, plenty available overcome demerits nature emissions. Gaseous was inducted through inlet manifold controlled by Timed Manifold Injection (TMI) 5% 7% total energy step 1%. In addition GH2 supplementation, preheating air range 40 0 C 60 increment 10 allowed suck same manifold. Supplementation 6% preheated showed better results than conventional operations any modifications. All required NFPA Class I Division 2 Group B standards this were considered during handling Hydrogen.