The Influence of Hydrogen Induction on The Characteristics of a CI Engine Fueled with Blend of Camphor Oil and Diesel with Diethyl Ether Additive

Abstract

This article investigates the effect of hydrogen induction on the characteristics of a CI engine fueled with the blend of camphor oil and diesel, along with diethyl ether (DEE) as an additive. The fuel sample was prepared by mixing 70% camphor oil with 30% diesel (C7D3) on a volume basis and then tested with 4 LPM (C7D3H4), 6 LPM (C7D3H6), and 8 LPM (C7D3H8) of hydrogen induction on the engine intake manifold. DEE was mixed at 10% and 20% with 90% and 80% of C7D3 on a volume basis and evaluated with 8 LPM of hydrogen induction; the resulting mixtures were designated as C7D3H8E10 and C7D3H8E20. The maximum thermal efficiency for C7D3H8E10 is 32.97%, with a minimum BSEC of 10.91 MJ/kgh, CO of 5.22 g/kWh, HC of 0.206 g/kWh, and smoke opacity of 39.6%. Hydrogen induction and increasing the quantity of hydrogen from 4 lpm to 8 lpm in the manifold increases the thermal efficiency to 32.63%. Further, it reduces the BSEC to 11.03 MJ/kgh, CO of 5.65 g/kWh, HC of 0.222 g/kW, and smoke opacity of 46.3%. NOx emissions were found to increase while increasing the hydrogen induction and with a 10% DEE addition to the C7D3 fuel. Further, raising the DEE from a 10%–20% ratio reduces the thermal efficiency and increases the BSEC, CO, HC, and smoke emissions. Overall, C7D3 in CI engines with 10% more DEE and hydrogen induction up to 8 LPM may be used efficiently.