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Experimental Study of a Dual-Fuel Diesel Engine with Biodiesel and Low-Calorie Gas Fuels
Technical Paper
2007-01-2026
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The experimental study has been carried out on a diesel engine dual-fueled by wood-pyrolysis gas and biodiesel fuel. Wood-pyrolysis gas was simulated by a low-calorie mixed gas (LCG), which consists of hydrogen, methane and inert gas. Effects of LCG/biodiesel ratio, biodiesel injection-timing, and gas-fuel composition were examined. Obtained results show that under a constant-torque condition, an increase in gas fuel consumption causes a decrease in a brake thermal efficiency due to a decrease in combustion efficiency and specific heat ratio. Also, NOx emission in exhaust gas is decreased by increase in gas fuel consumption under the low load condition, while it shows no change under the relatively high load condition. In addition, an early injection of biodiesel is effective to reduce carbon monoxide emission due to increase in combustion pressure and temperature.
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KAWASAKI, K. and YAMANE, K., "Experimental Study of a Dual-Fuel Diesel Engine with Biodiesel and Low-Calorie Gas Fuels," SAE Technical Paper 2007-01-2026, 2007, https://doi.org/10.4271/2007-01-2026.Also In
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